Hawkins v. Schwan's Home Service , 778 F.3d 877 ( 2015 )


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  •                                                                      FILED
    United States Court of Appeals
    Tenth Circuit
    February 19, 2015
    PUBLISH                Elisabeth A. Shumaker
    Clerk of Court
    UNITED STATES COURT OF APPEALS
    TENTH CIRCUIT
    DAVID HAWKINS,
    Plaintiff - Appellant,
    v.                                                    No. 13-6149
    SCHWAN’S HOME SERVICE, INC.,
    Defendant - Appellee.
    Appeal from the United States District Court
    for the Western District of Oklahoma
    (D.C. No. 5:12-CV-00084-HE)
    Mark E. Hammons (Amber L. Hurst with him on the briefs), Hammons, Gowens,
    Hurst & Associates, Oklahoma City, OK, for Plaintiff-Appellant.
    Alan L. Rupe (Jason M. Janoski with him on the brief), Kutak Rock LLP,
    Wichita, KS, for Defendant-Appellee.
    Before KELLY, LUCERO, and HOLMES, Circuit Judges.
    HOLMES, Circuit Judge.
    David Hawkins filed claims against his former employer, Schwan’s Home
    Service, Inc. (“SHS”), alleging violations of the Americans with Disabilities Act
    as amended (“ADAAA”) 1 and Oklahoma law. The district court granted summary
    judgment in favor of SHS. Exercising jurisdiction under 
    28 U.S.C. § 1291
    , we
    affirm.
    I
    In 1987, Mr. Hawkins began working for SHS, a company that sells and
    delivers frozen food products throughout the United States. He became a facility
    supervisor at SHS’s Alva, Oklahoma, sales and distribution depot in 2003 and, at
    all times relevant to these proceedings, reported to Jim Hillaker, the depot’s
    territory sales leader. Mr. Hawkins has described his chief responsibilities as
    1
    Although Mr. Hawkins initially stated that he was bringing his
    federal claims pursuant to “the Americans with Disabilities Act,” or “ADA,” “as
    set forth in 
    42 U.S.C. § 12111
    ,” Aplt. App. at 1 (Compl., filed Jan. 25, 2012), he
    argued in subsequent briefing that he was “a disabled person under the ADAAA,”
    
    id. at 182
     (Mot. for Partial Summ. J., filed Mar. 15, 2013). The district court
    analyzed the parties’ cross-motions for summary judgment by noting that the
    ADAAA applied generally and then by discussing the “essential-qualifications”
    issue with reference to the ADA standard. See 
    id.
     at 1054–56 (Order, filed May
    28, 2013). We discern nothing objectionable about this approach. As we have
    explained, Congress’s “express purpose” in amending the ADA was to “revers[e]
    the narrow judicial interpretation of disability . . . by, inter alia, expanding what
    is considered a major life activity and directing courts to interpret ‘substantial
    limitation’ broadly in favor of coverage.” Smothers v. Solvay Chems., Inc., 
    740 F.3d 530
    , 545 n.16 (10th Cir. 2014) (emphasis added) (citations omitted).
    Accordingly, noting that the scope of this appeal is confined to whether Mr.
    Hawkins was a qualified individual with a disability—and that the question of his
    disability vel non is not disputed here—we will (1) accept the premise that Mr.
    Hawkins’s lawsuit proceeds under the ADAAA (and refer to the ADAAA as the
    relevant statute infra); and (2) as the district court did, apply the standards of the
    ADA—which have continued in force after the amendments and were not affected
    by them—in our discussion of whether Mr. Hawkins was a “qualified” individual
    within the meaning of the statute.
    2
    “ordering products to be delivered by [SHS’s] delivery drivers, scheduling, and
    loading trucks with products.” Aplt. App. at 3.
    SHS has an official written description for the facility-supervisor position.
    That document indicates that a facility supervisor serves the purpose of
    “supervising the depot material handlers and coordinat[ing] the product receiving
    and material handling activities necessary to fulfill the sales activities at assigned
    depot(s).” 
    Id. at 594
     (Position Description, dated Apr. 2005). The job
    description’s “Duties and Responsibilities” section provides, in pertinent part,
    that a facility supervisor “[e]xecutes the company’s Good Warehouse Practices
    (GWP) and follows any government regulations” and manages the company’s
    fleet of delivery trucks, “which includes maintaining Department of
    Transportation (DOT) compliance files . . . , vehicle registration and license, and
    periodic fleet safety inspections.” 
    Id.
    According to Mr. Hillaker, who supervised truck operations as part of his
    leadership duties, fleet management often included driving company trucks to
    service appointments or otherwise “[s]huttling trucks to salespeople” to ensure
    product delivery. 
    Id. at 603
     (Hillaker Dep., dated Jan. 22, 2013). Mr. Hillaker’s
    observation that the facility-supervisor position involved driving is bolstered by
    the “Qualifications” section of SHS’s facility-supervisor job description, which
    indicates that an “excellent driving record” is required. 
    Id. at 594
     (capitalization
    altered). The job description further specifies that “meet[ing] the Federal
    3
    Department of Transportation eligibility requirements, including appropriate
    driver’s license and corresponding medical certification,” is a “condition of
    employment for this position.” 
    Id.
     Additionally, it lists several “essential
    abilities and functions” that directly implicate health and physical abilities, such
    as seeing, balancing, moving continuously, lifting and pulling up to fifty pounds,
    and using precise hand movements. 
    Id. at 596
     (capitalization altered).
    In 2007, when the Alva depot “shut . . . down for a period of time,” SHS
    “had [Mr. Hawkins] drive [company] trucks from Alva to Enid to load and drive
    the truck back from Enid to Alva, and then do the same in Woodward . . . [and]
    Laverne.” 
    Id. at 632
     (Hawkins Dep., dated Dec. 5, 2012). Doing so required Mr.
    Hawkins to be “DOT-qualified and have a Medical Examiner’s Certificate.” 
    Id. at 834
     (Valade Decl., dated Mar. 23, 2013). Matthew Valade, who was a facility
    supervisor at the Alva depot in 2011, explained that these were run-of-the-mill
    requirements. Indeed, during Mr. Valade’s interview, Mr. Hillaker indicated that
    Mr. Valade “m[ight] have to drive a Schwan’s route truck as part of [the] job.”
    
    Id.
     For his part, Mr. Hawkins has acknowledged that SHS mandated a DOT
    medical certification, and he has offered documentation to corroborate his prior
    compliance with that requirement.
    Mr. Hawkins suffers from several health conditions that came to a head in
    2010. Beginning in March of that year, he was “in and out of the
    hospital . . . with heart problems and fainting spells and very high blood
    4
    pressure.” 
    Id. at 540
     (Email from David Hawkins to Jeff Booth, dated June 14,
    2010). Mr. Hawkins experienced a minor stroke in June of 2010, but he resumed
    working soon afterward. In order to manage his symptoms, Mr. Hawkins had a
    pacemaker implanted and followed a comprehensive medication regimen. During
    this time period, several of Mr. Hawkins’s coworkers communicated to him that
    they were concerned about his health.
    On June 14, 2010, Mr. Hawkins emailed human-resources manager Jeff
    Booth to report that Mr. Hillaker wanted him “to drive trucks back and [forth] to”
    a mechanic in Enid, Oklahoma, as well as “to drivers on routes” in Woodward,
    Oklahoma. 
    Id.
     At a subsequent deposition, Mr. Hawkins explained that these
    requests had taken place in May and June of 2010—when his health issues were
    escalating—and that Mr. Hillaker was “telling everyone in Enid” that Mr.
    Hawkins was “a liability.” 
    Id. at 632
     (internal quotation marks omitted). He
    further suggested that SHS typically did not require facility supervisors to drive
    trucks to the mechanic, see 
    id.
     at 631–32, and that he believed Mr. Hillaker had
    begun asking him to do so in order to “force[ ] [him] to quit,” 
    id. at 631
    . Melvin
    Casion, who worked in operations at SHS, offered similar testimony—viz., that
    Mr. Hillaker had expressed that he was “very upset about [Mr. Hawkins] being in
    the hospital . . . [and] wanted him gone.” 
    Id. at 263
     (Casion Dep., dated Sept. 19,
    2012).
    On June 21, 2010, Mr. Hawkins failed a routine DOT medical evaluation.
    5
    See 
    id. at 478
     (Med. Examination Report, dated June 21, 2010) (marked “based on
    health history above[,] not able to pass” (capitalization altered)). He therefore
    did not receive the medical certification SHS demanded of all facility supervisors.
    The next day, SHS gave Mr. Hawkins a letter notifying him that he had “been
    placed on a 30 day company requested unpaid leave, effective June 21, 2010,
    because [he] did not pass [his] DOT recertification.” 
    Id. at 229
     (Letter from
    Nancy Green to David Hawkins, dated June 22, 2010). The letter informed Mr.
    Hawkins that he had thirty days to obtain this certification or “to find a non-DOT
    position.” 
    Id.
     Mr. Hawkins subsequently testified that he perused job listings on
    SHS’s public website. However, he “did not apply for any jobs.” 
    Id. at 1053
    .
    On June 23, 2010, Mr. Hawkins signed a termination form that stated, in
    relevant part, as follows:
    I, David Hawkins, hereby voluntarily resign from my position as
    Facility Manager[] with Schwan’s, Inc.[,] a subsidiary
    corporation of The Schwan Food Company. In voluntarily
    resigning my employment, I acknowledge that I am taking this
    action for the following reason(s)[,] . . . which is unrelated to any
    action or statement(s) made in conjunction with, by, or on behalf
    of my employer, or any representation of my employer.
    
    Id. at 230
     (Termination Form, dated June 23, 2010) (capitalization altered).
    Despite the foregoing language indicating that his resignation was voluntary, Mr.
    Hawkins wrote on the form that the reason for his action was: “Force[d] to quit
    for medical reason.” 
    Id.
     (capitalization altered).
    Before his separation from SHS, Mr. Hawkins began the process of seeking
    6
    Social Security Disability Insurance (“SSDI”) benefits from the Social Security
    Administration (“SSA”). In his SSDI application, which he signed on April 6,
    2010, he stated that he was unable to work and had “not been able to work for 5
    weeks.” 
    Id. at 1002
     (SSDI Appl., dated Apr. 6, 2010) (capitalization altered). He
    also indicated that one of his daily activities was to “transport trucks.” 
    Id. at 997
    (capitalization altered). The SSA denied Mr. Hawkins’s claim “initially on
    October 14, 2010, and upon reconsideration on January 10, 2011.” 
    Id. at 925
    (SSA Decision, dated Nov. 4, 2011). After a September 2011 hearing, an
    administrative law judge determined that Mr. Hawkins was not disabled.
    In a brief submitted to the SSA Appeals Council through his claims
    representative, Mr. Hawkins alleged that the “record [would] show that Mr.
    Hawkins would have difficulty with sustained work.” 
    Id. at 822
     (Appeal Br.,
    dated Dec. 21, 2011). He characterized his physical status as “less than
    sedentary” and claimed that he was incapable of participating in “any type of
    substantial gainful activity.” 
    Id. at 823
     (emphasis added). However, Mr.
    Hawkins also represented that, “had he been offered a job during the time of
    receiving unemployment, he was willing to at least try to do the work.” 
    Id.
     His
    SSDI application remained on appeal at the time the district court issued the
    ruling that we review.
    Mr. Hawkins filed his complaint in the United States District Court for the
    7
    Western District of Oklahoma on January 25, 2012, 2 bringing claims under the
    ADAAA and the Oklahoma Anti-Discrimination Act (“OADA”), and asserting a
    Burk tort. 3 In March 2013, he sought partial summary judgment on his ADAAA
    discrimination claim. Shortly thereafter, SHS filed its own cross-motion for
    summary judgment on all claims. The district court resolved these motions in
    SHS’s favor on May 28, 2013.
    In its summary-judgment order, the district court rejected Mr. Hawkins’s
    ADAAA discrimination claim, concluding that Mr. Hawkins was not a qualified
    individual with a disability because he could not perform the essential function of
    securing DOT certification for driving SHS’s vehicles. Moreover, “[e]ven
    if . . . being DOT qualified was not an essential function,” the court continued,
    Mr. Hawkins’s ADAAA discrimination claim “would nonetheless fail on the basis
    of estoppel” due to his conflicting representations to the SSA. 
    Id. at 1064
    . The
    district court then explained that SHS was entitled to summary judgment on Mr.
    Hawkins’s ADAAA retaliation claim because Mr. Hawkins had not addressed it in
    2
    Before filing his complaint, Mr. Hawkins properly filed charges of
    discrimination with the Equal Employment Opportunity Commission (“EEOC”)
    and the Oklahoma Human Rights Commission. The EEOC issued a notice of
    right to sue on January 12, 2012.
    3
    A Burk tort “is said to arise . . . where an employee is discharged for
    (1) refusing to violate an established and well-defined public policy or (2)
    performing some act consistent with a clear and compelling public policy.”
    Darrow v. Integris Health, Inc., 
    176 P.3d 1204
    , 1210 (Okla. 2008); see Burk v. K-
    Mart Corp., 
    770 P.2d 24
    , 28 (Okla. 1989).
    8
    his briefing. Next, noting the coextensive character of ADAAA and OADA
    actions, the court summarily rejected Mr. Hawkins’s OADA claim. For
    substantially the same reasons, the court rejected Mr. Hawkins’s Burk tort claim
    as well.
    This timely appeal followed.
    II
    Before taking up Mr. Hawkins’s arguments for reversal, we set forth the
    legal standards applicable to his federal disability-discrimination claim.
    A
    “We review the district court’s grant of summary judgment de novo,
    applying the same standard as the district court.” Crowe v. ADT Sec. Servs., Inc.,
    
    649 F.3d 1189
    , 1194 (10th Cir. 2011); accord Monge v. RG Petro-Mach. (Grp.)
    Co., 
    701 F.3d 598
    , 604 (10th Cir. 2012). In doing so, “[w]e view the facts, and
    all reasonable inferences those facts support, in the light most favorable to the
    nonmoving party.” Simmons v. Sykes Enters., Inc., 
    647 F.3d 943
    , 947 (10th Cir.
    2011). Generally, summary judgment should be granted “if the movant shows
    that there is no genuine dispute as to any material fact and the movant is entitled
    to judgment as a matter of law.” Fed. R. Civ. P. 56(a). “A fact is material if
    under the substantive law it is essential to the proper disposition of the claim.”
    Wright ex rel. Trust Co. of Kan. v. Abbott Labs., Inc., 
    259 F.3d 1226
    , 1231–32
    (10th Cir. 2001) (internal quotation marks omitted).
    9
    “Where appropriate, we may grant summary judgment ‘in favor of any
    moving party we conclude is entitled to summary judgment on the record before
    us.’” Faustin v. City & Cnty. of Denver, 
    423 F.3d 1192
    , 1198 (10th Cir. 2005)
    (quoting First Unitarian Church of Salt Lake City v. Salt Lake City Corp., 
    308 F.3d 1114
    , 1120 (10th Cir. 2002)). As long as “the facts were fully developed at
    [summary judgment] so that the court of appeals can determine that the
    nonmoving party clearly was entitled to a judgment as a matter of law, an entry of
    judgment for the nonmoving party may be proper” as well. Dickeson v.
    Quarberg, 
    844 F.2d 1435
    , 1445 n.8 (10th Cir. 1988) (internal quotation marks
    omitted).
    B
    Because Mr. Hawkins contends that SHS intentionally discriminated
    against him by terminating him because he was disabled, this lawsuit presents a
    claim of disparate-treatment discrimination. See Davidson v. Am. Online, Inc.,
    
    337 F.3d 1179
    , 1189 (10th Cir. 2003). We have described the prima facie case
    for such a claim as “not onerous.” Plotke v. White, 
    405 F.3d 1092
    , 1099 (10th
    Cir. 2005) (internal quotation marks omitted). More specifically, Mr. Hawkins
    must show that when his employment with SHS terminated, “(1) he was a
    disabled person as defined by the [statute]; (2) he was qualified, with or without
    reasonable accommodation, to perform the essential functions of his job; and (3)
    he was fired because of his disability.” Carter v. Pathfinder Energy Servs., Inc.,
    10
    
    662 F.3d 1134
    , 1142 (10th Cir. 2011); accord Zwygart v. Bd. of Cnty. Comm’rs,
    
    483 F.3d 1086
    , 1090 (10th Cir. 2007). It is also incumbent upon him at the
    summary-judgment phase to “rais[e] a genuine issue of material fact on each
    element of his prima facie case.” Davidson, 
    337 F.3d at 1189
    .
    We generally review disparate-treatment claims under the framework of
    McDonnell Douglas Corp. v. Green, 
    411 U.S. 792
     (1973). See Davidson, 
    337 F.3d at 1189
    ; accord Hardy v. S.F. Phosphates Ltd., 
    185 F.3d 1076
    , 1079 (10th
    Cir. 1999). However, we have explained that McDonnell Douglas’s “burden-
    shifting framework may be unnecessary and inappropriate” where, as here, there
    is direct evidence of discrimination. Morgan v. Hilti, Inc., 
    108 F.3d 1319
    , 1323
    n.3 (10th Cir. 1997); accord Davidson, 
    337 F.3d at 1189
    . 4 Under these
    circumstances, the employer “will defend its decision on the ground that the
    plaintiff is not otherwise qualified for the position, with or without reasonable
    accommodation,” within the meaning of the ADAAA. Davidson, 
    337 F.3d at
    4
    “Direct evidence is evidence from which the trier of fact may
    conclude, without inference, that the employment action was undertaken because
    of the employee’s protected status [, i.e., disability].” Sanders v. Sw. Bell Tel.,
    L.P., 
    544 F.3d 1101
    , 1105 (10th Cir. 2008). Here, the district court concluded
    that there was direct evidence of discrimination “in light of the much broadened
    definition of disability,” medical evidence submitted by Mr. Hawkins, and SHS’s
    “admi[ssion] that [Mr. Hawkins’s] heart condition . . . played a prominent part in
    its decision to place him on unpaid leave.” Aplt. App. at 1055 (internal quotation
    marks omitted); see also Aplee. Br. at 11 (“stipulat[ing] that Hawkins’s medical
    conditions prevent[ed] him from obtaining a DOT medical certification,” which
    led to the adverse employment action).
    11
    1189.
    At this point, the plaintiff’s status as a qualified individual with a disability
    becomes “the determinative issue in the case.” 
    Id.
     We then consider “two
    criteria”—viz., (1) “whether [the plaintiff’s] impairment prevented [him] from
    performing the essential functions of [his] job,” and (2) “[i]f so, . . . whether [he]
    might have nevertheless been able to perform those functions if the [employer]
    provided [him] a reasonable accommodation.” Robert v. Bd. of Cnty. Comm’rs,
    
    691 F.3d 1211
    , 1216 (10th Cir. 2012). To be clear, however, we will not obligate
    an employer to create a position out of wholecloth to accommodate the individual
    in question. See Smith v. Midland Brake, Inc., 
    180 F.3d 1154
    , 1174–75 (10th Cir.
    1999) (en banc); accord Mason v. Avaya Commc’ns, Inc., 
    357 F.3d 1114
    , 1119
    (10th Cir. 2004).
    The ADAAA defines a “qualified individual” as a person “who, with or
    without reasonable accommodation, can perform the essential functions of the
    employment position that [he] holds or desires.” 
    42 U.S.C. § 12111
    (8). Under
    the statute, “consideration shall be given to the employer’s judgment as to what
    functions of a job are essential,” and an employer’s written job description “shall
    be considered evidence of the essential functions of the job.” 
    Id.
     (emphases
    added). Further, the statute contemplates a broad array of “reasonable
    accommodations” that may include, inter alia, “job restructuring, . . . modified
    work schedules, reassignment to a vacant position, acquisition or modification of
    12
    equipment or devices, . . . or policies, . . . and other similar accommodations.”
    
    Id.
     § 12111(9)(B). We have consequently said that “[u]nder the ADA[AA], [a
    plaintiff] is a qualified individual as long as he can perform a job [offered by the
    employer] that he desires.” Davidson, 
    337 F.3d at 1190
     (internal quotation marks
    omitted); cf. Midland Brake, 180 F.3d at 1161 (“Although a ‘qualified individual
    with a disability’ has to be someone who can perform the essential functions of a
    job, that inquiry is not limited to the employee’s existing job. Rather, the plain
    language of the statute includes an employee who has the ability to do other jobs
    within the company that such disabled employee ‘desires.’” (quoting 
    42 U.S.C. § 12111
    (8))).
    The ADAAA’s implementing regulations, duly promulgated by the EEOC,
    define “essential functions” as “the fundamental job duties of the employment
    position the individual with a disability holds or desires,” but “not . . . the
    marginal functions of the position.” 
    29 C.F.R. § 1630.2
    (n)(1). A particular job
    duty “may be essential because the reason the position exists is to perform that
    function,” 
    id.
     § 1630.2(n)(2)(i), or “because of the limited number of employees
    available among whom the performance of that job function can be distributed,”
    id. § 1630.2(n)(2)(ii). As discussed infra, our disability-discrimination caselaw
    explicitly incorporates the EEOC’s regulations, see Wells v. Shalala, 
    228 F.3d 13
    1137, 1144 (10th Cir. 2000), 5 and counsels in favor of deference to an employer’s
    judgment concerning essential functions, see Tate v. Farmland Indus., Inc., 
    268 F.3d 989
    , 993 (10th Cir. 2001) (noting that our “inquiry is not intended to second
    guess the employer”); cf. Davidson, 
    337 F.3d at 1191
     (explaining that some
    deference is due because “[d]etermining whether a particular function is essential
    is a factual inquiry”). This approach is consonant with Congress’s indication that
    “[b]y including the phrase ‘qualified individual with a disability,’ the Committee
    intends to reaffirm that this legislation does not undermine an employer’s ability
    to choose and maintain qualified workers.” H.R. Rep. No. 101-485(II), at 55
    (1990), reprinted in 1990 U.S.C.C.A.N. 303, 337.
    III
    Mr. Hawkins contends that the district court’s application of the foregoing
    5
    In Wells, we observed the D.C. Circuit’s “suggest[ion] that whether
    an individual is ‘qualified’ for a job may, depending upon the circumstances,
    present a question of fact or a question of law.” 228 F.3d at 1144 n.5. We did
    not choose between those two approaches, though, for we found that the plaintiff
    would lose as a matter of law in any event. See id. Then, in Mason, while stating
    that “whether an employee can perform the essential functions of her job is a
    mixed question of law and fact,” we still resolved the appeal as a matter of law.
    
    357 F.3d at 1122
    ; see 
    id.
     (“Assuming a jury may determine the essential functions
    of a job, we conclude [that this] case is not one in which the essential function
    inquiry must go to the jury because no reasonable jury could find for [the
    plaintiff] applying the [EEOC’s] factors.”). No additional inquiry on this score is
    required here. This is so because, much like in Mason and Wells, the district
    court assessed the facts presented and then, applying the EEOC factors, made the
    legal determination that Mr. Hawkins could not perform the essential function of
    driving DOT-regulated route trucks. We consequently need not resolve the fact-
    law question to which the Wells court alluded.
    14
    principles was infected by multiple legal errors. He primarily disputes the court’s
    determination that driving a DOT-regulated truck was an “essential function” of
    SHS’s facility-supervisor position. In doing so, he submits that the district court
    incorrectly allocated the relevant burdens between the parties and “fail[ed] to
    distinguish between qualifications and functions.” Aplt. Opening Br. at 22. He
    also challenges the court’s reliance upon estoppel as an alternative basis for
    granting summary judgment, arguing that “estoppel can only be granted based on
    sworn declarations.” Id. at 15.
    In affirming the district court, we cabin our analysis to the court’s
    conclusion that Mr. Hawkins failed to make a prima facie ADAAA case. The
    district court’s well-reasoned analysis on this issue, standing alone, provides a
    strong foundation for affirmance. In particular, we conclude that the district court
    (1) correctly assigned the burdens between the parties and (2) did not conflate the
    “qualifications” and “functions” terms. We need not—and thus do not—address
    Mr. Hawkins’s estoppel theories. See Richison v. Ernest Grp., Inc., 
    634 F.3d 1123
    , 1130 (10th Cir. 2011) (noting that “we may affirm on any basis supported
    by the record”).
    A
    In urging reversal, Mr. Hawkins primarily argues that the district court
    erroneously assigned to him—as opposed to SHS—the burden of proving that the
    ability to drive DOT-regulated trucks was an essential function of the facility-
    15
    supervisor position. Our assessment of this argument, which we ultimately reject,
    proceeds in three steps. First, we clarify the applicable terms that form the basis
    of Mr. Hawkins’s contentions regarding the allocation of the burden. Second, we
    explain the analytical roadmap provided by our caselaw and conclude that the
    district court’s ruling reflects its principled adherence to this approach. And,
    third, we explain why the authorities upon which Mr. Hawkins relies lend him no
    succor.
    1
    At the outset, Mr. Hawkins insists that “it is the employer’s burden of proof
    to establish that a function is ‘essential.’” Aplt. Opening Br. at 17 (capitalization
    altered). He explains that the district court “did not expressly address the
    allocation of proof on this issue”—viz., the question of whether a job function is
    “essential”—but, rather, patently “placed the burden on Mr. Hawkins.” Id. at 20.
    He also submits that, because “this Circuit has not directly addressed that
    burden,” id. at 18, reversal is proper. Though we do not gainsay the vital role
    that assigning burdens can play in the disposition of a lawsuit, see Schaffer ex rel.
    Schaffer v. Weast, 
    546 U.S. 49
    , 55–56 (2005) (noting that certiorari was granted
    to resolve a dispute concerning burden allocation), we are not situated to reverse
    on the basis of Mr. Hawkins’s misallocated-burden theory.
    Addressing Mr. Hawkins’s assertions in this regard requires some
    unpacking of his chosen terminology. Mr. Hawkins’s use of the phrase “burden
    16
    of proof” is less than pellucid. To be sure, the Supreme Court has recognized that
    “[t]he term ‘burden of proof’ is one of the ‘slipperiest member[s] of the family of
    legal terms.’” Schaffer, 
    546 U.S. at 56
     (second alteration in original) (quoting 2
    J. Strong, McCormick on Evidence § 342, at 433 (5th ed. 1999)). The Court has
    clarified that “[h]istorically, the term has encompassed two separate burdens: the
    burden of persuasion (specifying which party loses if the evidence is balanced),
    as well as the burden of production (specifying which party must come forward
    with evidence at various stages in the litigation).” Microsoft Corp. v. i4i Ltd.
    P’ship, --- U.S. ----, 
    131 S. Ct. 2238
    , 2245 n.4 (2011) (emphases added) (internal
    quotation marks omitted). However, time and again, the Court has articulated the
    “ordinary default rule” that “plaintiffs bear the risk of failing to prove their
    claims.” Schaffer, 
    546 U.S. at 56
    ; accord Gross v. FBL Fin. Servs., Inc., 
    557 U.S. 167
    , 177 (2009); Meacham v. Knolls Atomic Power Lab., 
    554 U.S. 84
    , 91–92
    (2008).
    This court has likewise alluded to the linguistic difficulty inherent in the
    concept of “burden.” See, e.g., Esgar Corp. v. Comm’r, 
    744 F.3d 648
    , 654 (10th
    Cir. 2014) (“In a situation in which both parties have satisfied their burden of
    production by offering some evidence, then the party supported by the weight of
    the evidence will prevail regardless of which party bore the burden of persuasion,
    proof or preponderance.” (internal quotation marks omitted)); Riggs v. AirTran
    Airways, Inc., 
    497 F.3d 1108
    , 1116 (10th Cir. 2007) (“In the employment
    17
    discrimination context, there is no need for a trial if one party has failed to
    produce sufficient evidence to carry its burden of persuasion. It is therefore
    appropriate for a court to reference the burdens of proof . . . .” (emphases
    added)); Prince v. Leesona Corp., 
    720 F.2d 1166
    , 1173 & n.11 (10th Cir. 1983)
    (finding no error in a jury instruction stating: “Burden of proof means burden of
    persuasion. A party who has the burden of proof must persuade you that his
    claim is more probably true than not true. In determining whether a party has met
    this burden, you will consider all the evidence, whether produced by the plaintiff
    or the defendant.”).
    Collectively, we read our caselaw as making three salient points regarding
    the burden issue. The first of these is that “burden of proof” is an umbrella term
    “encompassing the burdens of both production and persuasion.” Qwest Corp. v.
    FCC, 
    689 F.3d 1214
    , 1225–26 (10th Cir. 2012). 6 The second is that both parties
    shoulder the burden of presenting evidence at some point in the litigation. See,
    e.g., White v. York Int’l Corp., 
    45 F.3d 357
    , 361 (10th Cir. 1995) (noting that the
    plaintiff “has the burden of coming forward with evidence concerning his
    individual capabilities and suggestions for possible accommodations to rebut the
    employer’s evidence” (quoting Prewitt v. U.S. Postal Serv., 
    662 F.2d 292
    , 308
    6
    A well-regarded legal dictionary embraces this understanding of the
    term. See Black’s Law Dictionary 223 (9th ed. 2009) (“The burden of proof
    includes both the burden of persuasion and the burden of production.” (italics
    omitted)).
    18
    (5th Cir. Unit A Nov. 1981)) (internal quotation marks omitted)); see also Tate,
    
    268 F.3d at 993
     (noting that a plaintiff who “fails to establish” his prima facie
    disability-discrimination case cannot prevail). The third point—and arguably the
    one most applicable to this appeal—is that “the plaintiff at all times bears the
    ultimate burden of persuading the trier of fact that he has been the victim of
    illegal discrimination based on his disability.” White, 
    45 F.3d at 361
     (emphasis
    added).
    Notwithstanding these bedrock principles, Mr. Hawkins challenges the
    district court’s ultimate assignment of the burden of persuasion to him. In this
    regard, he avers that “[s]ummary judgment is most often entered against the party
    bearing the burden of proof [and] cases in which summary judgment is granted in
    favor of the party bearing the burden of persuasion . . . will be rare.” Aplt.
    Opening Br. at 19 (alterations and omission in original) (emphases omitted)
    (quoting Frobose v. Am. Sav. & Loan Ass’n of Danville, 
    152 F.3d 602
    , 615 n.12
    (7th Cir. 1998)) (internal quotation marks omitted). Mr. Hawkins can ultimately
    be heard to argue that, even if both parties were obligated to adduce some
    evidence at summary judgment regarding whether truck-driving is an essential
    function of the facility-supervisor job, SHS should have borne the burden of
    “first” persuading the factfinder that it was an essential function if the evidence
    was in equipoise. See id. at 18 (questioning “who has the burden of first proving
    whether a function is essential” (internal quotation marks omitted)); id. at 20
    19
    (“Because the employer clearly has superior knowledge as to the relevant factors
    [of the job], . . . the employer has the burden of [persuasion].”).
    2
    Having clarified these critical terms, we turn to the district court’s
    allocation of the burden in its ruling. We first discuss its obligation under our
    precedent, which provides a principled course for courts to follow in cases such
    as Mr. Hawkins’s. We then review the district court’s actual analytical trajectory
    and conclude that it faithfully followed our circuit precedent. Notably, we find
    that the court properly analyzed Mr. Hawkins’s disability-discrimination claim
    using a rubric from which we are not situated to deviate.
    a
    Our ADAAA roadmap is clearly articulated in Wells v. Shalala, 228 F.3d at
    1144. In that case, we explained that “a two-part analysis” guides our inquiry as
    to whether a plaintiff is “qualified” for his former position. Id. We characterized
    the first step of that analysis as “determin[ing] whether [the plaintiff] can perform
    the essential functions of the job, i.e., functions that bear more than a marginal
    relationship to the job at issue.” Id. We then expressly indicated that such a
    determination involves consulting the regulatory factors provided by the EEOC,
    to wit:
    Evidence of whether a particular function is essential to a job
    includes (but is not necessarily limited to) (1) the employer’s
    judgment as to which functions are essential, (2) written job
    20
    descriptions prepared before advertising or interviewing
    applicants for the job, (3) the consequences of not requiring the
    incumbent to perform the function, and (4) the current work
    experience of incumbents in similar jobs.
    Id. (citing 
    29 C.F.R. § 1630.2
    (n)(3)). As for the second part, we stated that “if we
    conclude that Plaintiff is not able to perform the essential functions of the job, we
    must determine whether any reasonable accommodation by [the employer] would
    enable him to perform those functions.” 
    Id.
    Wells is particularly useful to our growing body of disability jurisprudence
    because it indicates our intent to incorporate the EEOC regulations in
    decisionmaking. Further, as relevant here, it demonstrates that implementing
    those regulations necessarily places considerable weight on an employer’s
    judgment concerning a particular job’s “essential” functions. We did precisely
    that in Wells when we deemed the plaintiff’s single, self-serving affidavit
    woefully insufficient to overcome the employer’s “overwhelming
    evidence”—including a written job description and affidavits from three company
    supervisors—that travel was an “essential” function of the disputed position. 
    Id.
    at 1144–45.
    In Mason v. Avaya Communications, we strengthened the foundation
    provided by Wells, emphasizing once more that the factors listed at 
    29 C.F.R. § 1630.2
     are part and parcel of our essential-function inquiry. See 
    357 F.3d at 1119
     (referencing the EEOC’s prescribed regulations). And we unmistakably
    21
    signaled that the Wells rubric contemplates deference to an employer’s judgment.
    See 
    id.
     (stating that we are “require[d]” to “consider the employer’s judgment as
    to what functions of a job are essential” (internal quotation marks omitted)). We
    described the prototypical analysis in that regard as follows:
    The employer describes the job and functions required to perform
    that job. We will not second guess the employer’s judgment
    when its description is job-related, uniformly enforced, and
    consistent with business necessity. In short, the essential
    function inquiry is not intended to second guess the employer or
    to require the employer to lower company standards.
    
    Id.
     (citations omitted) (internal quotation marks omitted).
    Under that approach in Mason, we cited with approval the employer’s
    “present[ation of] evidence to the district court demonstrating four of the
    evidentiary factors set forth by the EEOC regulations,” 
    id.
     at 1120—evidence
    which was then appropriately weighed against the plaintiff’s offering. Observing
    that the plaintiff had “simply point[ed] out that [the employer] did not present any
    evidence [on an issue she found significant],” 
    id. at 1121
    , we agreed with the
    district court that the plaintiff had lost the evidentiary tug-of-war. In so doing,
    we expressly found that the plaintiff had “not persuaded” us to accept her view
    that the disputed functions were non-essential in the context of the statute. 
    Id.
     at
    1121–22 (emphasis added). Mason therefore serves as a natural extension of
    Wells by incorporating the factors referenced by the EEOC, by requiring the
    employer to produce some evidence, and by affording respect to the employer’s
    22
    judgment. 7
    Our subsequent caselaw, in recapitulating this rubric, lends the important
    consideration that, in the “necessary first step [of] identify[ing] the ‘essential
    functions’ of the position[,] . . . the employer’s judgment is not conclusive
    evidence.” EEOC v. Picture People, Inc., 
    684 F.3d 981
    , 997 (10th Cir. 2012).
    Indeed, despite our usual deference to an employer’s adoption of qualifications
    based on its judgment and experience, we have firmly held that “an employer may
    not turn every condition of employment which it elects to adopt into a job
    function, let alone an essential job function, merely by including it in a job
    description.” 
    Id.
     (quoting Davidson, 
    337 F.3d at 1191
    ) (internal quotation marks
    omitted). But it bears repeating that, in the end, “[w]e weigh heavily the
    employer’s judgment regarding whether a job function is essential.” Hennagir v.
    Utah Dep’t of Corr., 
    587 F.3d 1255
    , 1262 (10th Cir. 2009).
    7
    Our explication of Mason demonstrates why Mr. Hawkins’s reliance
    upon it is misplaced. Mr. Hawkins emphasizes the fact that the Mason employer
    presented evidence concerning the EEOC factors—but he reasons from that fact
    that this “inferentially supports that the employer possessed the burden of proof.”
    Aplt. Opening Br. at 18. Though we acknowledge that Mason does not expressly
    “answer the initial question of who has the burden of first proving whether a
    function is ‘essential,’” 
    id.
     (emphasis added), Mason unquestionably incorporates
    the Wells rubric, and we must abide by our unavoidable rule that “the plaintiff at
    all times bears the ultimate burden of persuading the trier of fact that he has been
    the victim of illegal discrimination based on his disability,” White, 
    45 F.3d at 361
    (emphasis added), which we followed in Mason.
    23
    b
    Next, we assess the district court’s adherence to the decisional path paved
    by our caselaw. We conclude that the court thoroughly reviewed the facts and
    then made the legal determination that Mr. Hawkins failed to carry his burden of
    persuasion on whether DOT certification was an essential function of his desired
    position. That legal determination then justified the court’s rejection of Mr.
    Hawkins’s claim that he was a qualified individual with a disability.
    Consequently, we affirm.
    Courts require an employer to come forward with evidence concerning
    whether a job requirement is an essential function. See, e.g., Mason, 
    357 F.3d at 1120
     (considering the employer’s evidence with respect to various factors
    enumerated in the EEOC regulations); White, 
    45 F.3d at 362
     (analyzing evidence
    offered by the employer to determine the essential functions even before the
    employee demonstrated hypothetical accommodations); accord Bates v. United
    Parcel Serv., Inc., 
    511 F.3d 974
    , 991 (9th Cir. 2007) (en banc) (“[A]n employer
    who disputes the plaintiff’s claim that he can perform the essential functions must
    put forth evidence establishing those functions.” (internal quotation marks
    omitted)); Benson v. Nw. Airlines, Inc., 
    62 F.3d 1108
    , 1113 (8th Cir. 1995)
    (“Because Northwest[, the employer,] disputes Benson’s evidence that he can
    perform the essential functions of the mechanic’s job, it must put on some
    evidence of those essential functions.” (emphasis added)). A job function may be
    24
    essential—i.e., a fundamental duty of the relevant position, see 
    29 C.F.R. § 1630.2
    .(n)(1)—because performing it is the reason for the position, or because
    few employees are available to perform it, see 
    id.
     § 1630.2(n)(2). 8
    Bearing the foregoing in mind, the district court here specified the
    regulatory factors that would shape its assessment of Mr. Hawkins’s claim—and,
    by extension, its ruling on whether DOT certification was an “essential function”
    of the facility-supervisor job with SHS:
    [t]he employer’s judgment as to which functions are essential;
    [w]ritten job descriptions prepared before advertising or
    interviewing applicants for the job; [t]he amount of time spent on
    the job performing the function; [t]he consequences of not
    requiring the incumbent to perform the function, and [t]he current
    work experience of incumbents in similar jobs.
    Aplt. App. at 1056–57 (alterations in original) (internal quotation marks omitted).
    The district court was entitled to narrow the scope of its inquiry in such a
    reasonable fashion, given the EEOC’s guidance that 29 C.F.R. “Part 1630 lists
    various types of evidence . . . . [T]he list is not exhaustive.” 
    29 C.F.R. § 1630
    app. (commenting on § 1630.2(n)).
    With regard to the first factor—SHS’s judgment—the district court
    8
    Mr. Hawkins contends that the second of these grounds is “[t]he only
    possible basis . . . for finding driving a commercial vehicle to be essential.” Aplt.
    Opening Br. at 28. However, he offers no legal substantiation for the proposition
    that only 
    29 C.F.R. § 1630.2
    (n)(2)(ii) (“limited number of employees available”
    to perform the function) should inform our decision, and we will not make that
    argument on his behalf. See United States v. Yelloweagle, 
    643 F.3d 1275
    , 1284
    (10th Cir. 2011).
    25
    considered it “clear that [SHS] considered being DOT qualified to operate a
    [company] route truck an essential job function.” Aplt. App. at 1059. The court
    focused on SHS’s judgment as follows:
    [SHS] asserts that its facility supervisors must be authorized to
    operate DOT regulated vehicles so they could pick up and deliver
    vehicles for service and repair and facilitate the fueling and the
    loading and unloading of goods from the vehicles. While a
    facility supervisor might not have to operate a commercial
    vehicle on a daily basis, [SHS] claims it was essential that [Mr.
    Hawkins] be able, as supervisor, to assume the task of his
    supervised employees, when needed to prevent the disruption of
    its business.
    
    Id.
     It further considered SHS’s choice to require many physical abilities of its
    facility supervisors, see id. at 1058, and SHS’s proffered “evidence of different
    situations where[,]” in SHS’s judgment, “the facility supervisor would need to
    drive” to avoid disrupting business, id. at 1059.
    Our precedent, which requires courts to “weigh heavily the employer’s
    judgment regarding whether a job function is essential,” Hennagir, 
    587 F.3d at 1262
     (emphasis added), indicates that the district court’s deference to SHS’s
    articulation of the facility-supervisor’s role was justified. There is no doubt in
    this circuit that “[i]t is [an] employer’s province to define the job and the
    functions required to perform it.” Anderson v. Coors Brewing Co., 
    181 F.3d 1171
    , 1177 (10th Cir. 1999). The district court’s “inquiry is not intended to
    second guess the employer or to require [it] to lower company standards.”
    Davidson, 
    337 F.3d at 1191
    . We are satisfied that the district court heeded this
    26
    rule and properly refrained from “act[ing] as a super personnel department that
    second guesse[d] [SHS’s] business judgments” regarding Mr. Hawkins’s former
    position. Dalpiaz v. Carbon Cnty., 
    760 F.3d 1126
    , 1133 (10th Cir. 2014) (internal
    quotation marks omitted). 9
    The second pertinent factor in the district court’s calculus was SHS’s
    official written description corresponding to the facility-supervisor position,
    which contemplated fleet management, DOT certification and associated
    credentialing, and an “excellent driving record.” Aplt. App. at 594 (capitalization
    altered). The district court found that this factor overwhelmingly favored SHS,
    and thus rejected Mr. Hawkins’s contention that the job description did not
    “facially” require truck-driving. See 
    id. at 1057
     (internal quotation marks
    omitted). In so doing, the court found that being DOT-certified (and, by
    extension, being able to drive SHS’s trucks) was “consistent with the specified
    9
    Mr. Hawkins purports to challenge the district court’s assessment of
    this factor by stating that because “no preexisting memos or directives” apprised
    facility supervisors of the DOT-certification requirement, this “failure to
    document” should have “created a credibility issue for the jury as to whether this
    was really the employer’s judgment or whether it was a pretext to screen out
    disabled employees.” Aplt. Opening Br. at 28–29. Yet, Mr. Hawkins cites to no
    legal authorities that suggest—much less command—that we should treat these or
    similar circumstances as engendering a jury issue regarding pretext. Nor does
    Mr. Hawkins offer cogent argument or anything else to validate this nebulous
    assertion. In view of the undeveloped nature of this argument in his briefing, we
    decline to pursue the matter further. See, e.g., Bronson v. Swensen, 
    500 F.3d 1099
    , 1104 (10th Cir. 2007) (“[W]e routinely have declined to consider arguments
    that are . . . inadequately presented[ ] in an appellant’s opening brief.”).
    27
    duties, when . . . considered in the context of the type of business [of SHS] and
    how it operated.” 
    Id.
     at 1057–58 (emphasis added). Put otherwise, the court
    found the job description’s failure to invoke the word “driving” unremarkable,
    particularly in light of the fact that the document implicitly “identified [driving]
    as one of the job qualifications.” Id. at 1059.
    We find no fault with the district court’s context-based assessment of
    SHS’s written job description. Our caselaw readily supports the court’s
    prerogative to view the description through a broad lens, considering all relevant
    circumstances of the position. See, e.g., Davidson, 
    337 F.3d at 1191
     (noting that
    the court undertakes a multi-factor assessment that “includ[es] those functions
    contained in a written job description” (emphasis added)); cf. Frazier v. Simmons,
    
    254 F.3d 1247
    , 1258 (10th Cir. 2001) (“Our case law recognizes an employer may
    require an employee to perform a multitude of tasks in a wide range of
    environments.” (internal quotation marks omitted)). Notably, in Robert, we
    rejected the argument of the plaintiff, an offender supervisor, that
    fieldwork—mentioned in some portions of the job description, but not the
    “essential functions” section—was non-essential. See 691 F.3d at 1216–17.
    Assessing the full complement of duties assigned to that position, we reasoned:
    “[S]upervising offenders in-person was clearly an essential function . . . . So too
    was conducting visits to their homes and workplaces.” Id. at 1216. We were
    further persuaded by the fact that the plaintiff’s failure to perform that function
    28
    “caused strain in her small office.” Id.
    Similarly, in Mason, when “the only evidence [the plaintiff] proffered in
    support of her argument that she could perform the essential functions of her job
    from home, other than her own self-serving testimony, was the absence of
    attendance, supervision, and teamwork from the service coordinator job
    description,” we concluded that context and “commonsense suggest[ed]”
    otherwise. 
    357 F.3d at
    1121–22. We willingly accepted there that a job
    description need not be Byzantine or prolix in order to be deemed
    sufficient—and, in fact, intimated that certain essential functions could be “a
    given” when considering the job in context. 
    Id. at 1122
    . All of the foregoing
    principles apply with equal force here.
    Furthermore, we are not persuaded by Mr. Hawkins’s suggestion that
    driving a commercial vehicle is uniquely non-essential to the general position of
    supervisor. He contends that “supervising” and “coordinating”—both listed in
    the job description—do not necessarily require a facility supervisor to assume the
    duties of a subordinate. But, as the district court observed, SHS presented
    evidence demonstrating that such flexibility was critical to its business model.
    That is, SHS could not always anticipate when a driver would be needed in a
    pinch; its route and driver changes occurred frequently, and the DOT’s hours-of-
    service rules often impacted whether materials handlers could bring trucks back
    for re-stocking. Mr. Hawkins has at no point meaningfully refuted that evidence.
    29
    We therefore have little trouble concluding that “coordinat[ing] the product
    receiving and material handling activities necessary to fulfill the sales activities at
    [his] assigned depot,” Aplt. App. at 594, required some modicum of ability of a
    facility supervisor, like Mr. Hawkins, to operate the trucks in his fleet.
    The third factor considered in the essential-function inquiry is the amount
    of time spent performing the disputed function. See 
    29 C.F.R. § 1630.2
    (n)(3)(iii).
    Here, while remarking that “a facility supervisor might not have to operate a
    commercial vehicle on a daily basis,” Aplt. App. at 1059, the district court
    nonetheless found it relevant that Mr. Hawkins had previously been called upon
    to drive fleet trucks, see 
    id. at 1061
     (“If plaintiff had never had to drive a truck,
    the court might view the case differently.”). On appeal, Mr. Hawkins rebuts this
    conclusion by attempting to fault the court’s “minimiz[ation] [of] the two and a
    half years from 2007 to 2010 when [he] did no driving at all.” Aplt. Opening Br.
    at 33. We reject this argument not only based on our view that the district court
    thoroughly considered that time period, but also because it did so while adhering
    to our precedent.
    More specifically, the district court’s assessment of time finds support in
    our Hennagir decision. At issue in Hennagir was whether completion of a
    correctional institution’s Peace Officer Standards and Training (“POST”) program
    was an essential function for facility medical positions. See 
    587 F.3d at 1262
    .
    The plaintiff insisted that POST certification was non-essential because in eight
    30
    years of corrections medical work, she had never relied upon the program’s
    teachings. See 
    id. at 1263
    . While we recognized that the plaintiff’s lack of
    utilization of the program went “to a number of properly weighed factors
    [including] the amount of time spent on the job performing the function,” 
    id.
    (emphasis added), we gave considerable weight to another counterbalancing
    factor—“the consequences of not requiring an employee to perform the function,”
    
    id.
     Indeed, we considered it paramount in Hennagir that the plaintiff had “daily
    exposure” to inmates and the consequences of failing to adhere to the POST
    training in dealing with inmate attacks were “severe.” 
    Id.
     (internal quotation
    marks omitted). We carefully considered scenarios (both hypothetical and real)
    advanced by the employer in support of this factor and concluded that “common
    sense” made the requirement of proper training “reasonable.” 
    Id.
    We reach the same conclusion here. Regardless of the two-and-a-half years
    in which Mr. Hawkins did not have to drive a truck, the daily exposure to
    company vehicles and product shipments created a strong, constant potential that
    he might need to possess certification to drive a DOT-regulated truck. As the
    district court explicitly noted, “DOT hours of service rules,” re-stocking
    difficulties SHS sometimes encountered, various mechanics’ truck-driving
    policies, and the “need to find someone else who could fill in at the last minute,”
    given the “small number of employees” at the Alva depot, all increased the
    likelihood that he might have to drive a truck. Aplt. App. at 1059–61. And,
    31
    although the court also considered Mr. Hawkins’s evidence that another employee
    could drive route trucks, it was entitled to be critical of the fact that Mr. Hawkins
    “offer[ed] no evidence that the extra person was on site and available to drive
    when needed.” 
    Id.
     at 1060 n.9 (italics omitted); see Milton v. Scrivner, Inc., 
    53 F.3d 1118
    , 1125 (10th Cir. 1995) (“While we must resolve doubts in favor of the
    parties opposing summary judgment, plaintiffs’ conclusory allegations are
    insufficient to defeat [an] adequately supported motion.”). Given the court’s
    determination that “[Mr. Hawkins’s] job was to keep the trucks loaded and on the
    road,” Aplt. App. at 1060, there was nothing erroneous about its associated ruling
    that eliminating the truck-certification requirement might disrupt SHS’s business.
    Finally, though Mr. Hawkins argues that SHS “presented no proof” of two
    additional factors—the work experiences of past incumbents and of persons in
    similar jobs—he does so only with reference to his personal view that “in some
    depots the facility manager has to drive and in others he or she did not.” Aplt.
    Opening Br. at 35–36 (internal quotation marks omitted). He has not
    meaningfully disputed the evidence that every facility supervisor was required to
    be DOT-certified, and he has clearly conceded that some SHS depots required
    facility supervisors to drive. See id. at 36. We therefore reject this conclusory
    assertion for what it is: another misguided attempt to unload his burden of
    persuasion onto SHS, despite our insistence in White that he shoulders this burden
    at all times. See 
    45 F.3d at 361
    .
    32
    In sum, reviewing the district court’s assessment of the EEOC factors, we
    have no trouble accepting its ultimate conclusion regarding DOT certification.
    The district court carefully and properly reached a legal determination based on
    the evidence presented. It observed numerous undisputed facts, notably: (1) that
    Mr. Hawkins “did drive [SHS] trucks regularly for a period of time in 2007”; (2)
    that “all [SHS] facility supervisors were required to be DOT qualified”; (3) that
    SHS’s written description for the facility-supervisor job required DOT
    certification; (4) that, aside from route salespersons, only one other Alva-based
    employee besides Mr. Hawkins was authorized to drive a company truck; and (5)
    that failing to require DOT certification could seriously disrupt SHS’s business.
    Aplt. App. at 1061. The district court explicitly relied upon these undisputed
    facts—most of which were adduced by SHS—to find that, as a matter of law,
    DOT certification was an essential function of the facility-supervisor position. In
    this way, the district court’s analysis was patently consistent with our settled
    precedent.
    Finally, we note that, to the extent that the court’s calculus involved a tacit
    shifting of some burden onto Mr. Hawkins, we find such an allocation
    unremarkable. That is, given the employee’s responsibility to persuade the
    factfinder that he is qualified to perform the essential functions of a position, it is
    not surprising that a court would reason that the employee bears that same burden
    regarding the subsidiary question of what those essential functions actually are.
    33
    3
    We now address Mr. Hawkins’s view that several of our sister circuits
    “have directly addressed this issue and agree” that, in cases such as his, the
    employer bears the burden of persuasion concerning whether a job function is
    essential because of the employer’s “superior knowledge as to the relevant
    factors.” Aplt. Opening Br. at 20. In doing so, we recognize Mr. Hawkins’s
    efforts to identify at least some extra-circuit caselaw to support his gloss on the
    allocation of the burden. But the decisions to which he briefly alludes do not
    serve him well for at least two reasons. First, these authorities arguably do not
    speak to the issue Mr. Hawkins raises—viz., whether the employer must persuade,
    rather than simply produce evidence pertaining to the essential functions of a
    position. They are more fairly read to reinforce our own treatment of the issue,
    especially our insistence that the burden of persuasion at all times falls to the
    plaintiff. Moreover, even assuming arguendo that the cases were more germane
    to Mr. Hawkins’s circumstances, we would nonetheless afford them little
    persuasive weight because the scope of their applicability is far more limited than
    Mr. Hawkins suggests. Nonetheless, it bears repeating that we are bound to
    follow our own precedent and its express incorporation of the EEOC regulations.
    We find it clear as an initial matter that many of Mr. Hawkins’s authorities
    do not specifically implicate his misallocated-burden argument. In fact, they
    bolster the distinction we articulated above: that while both parties face a burden
    34
    of production, the plaintiff always bears the ultimate burden of persuasion. See,
    e.g., Bates, 
    511 F.3d at 991
     (“[W]e agree with the Eighth Circuit’s approach that
    an employer who disputes the plaintiff’s claim that he can perform the essential
    functions must put forth evidence establishing those functions.” (emphasis added)
    (internal quotation marks omitted)); EEOC v. Wal-Mart Stores, Inc., 
    477 F.3d 561
    , 569 (8th Cir. 2007) (“[O]nce the plaintiff makes a facial showing that
    reasonable accommodation is possible, the burden of production shifts to the
    employer to show that it is unable to accommodate the employee. If the employer
    demonstrates that the plaintiff is unable to perform the essential functions of the
    job even with reasonable accommodation, the plaintiff must then rebut that
    showing with evidence of his individual capabilities. Thus, the plaintiff’s burden
    merges with his ultimate burden of persuading the trier of fact that he has
    suffered unlawful discrimination.” (alteration in original) (emphases added)
    (citations omitted) (internal quotation marks omitted)); Monette v. Elec. Data Sys.
    Corp., 
    90 F.3d 1173
    , 1184 (6th Cir. 1996) (explaining that, although the employer
    must produce some evidence that a challenged job requirement is job-related, “the
    disabled individual retains the burden of proving that he or she is qualified to
    perform the essential functions of the job”), abrogated on other grounds by Lewis
    v. Humboldt Acquisition Corp., 
    681 F.3d 312
     (6th Cir. 2012); Benson, 
    62 F.3d at 1112
     (“The employee at all times retains the burden of persuading the trier of
    fact that he has been the victim of illegal discrimination due to his disability.”
    35
    (emphasis added)).
    Mr. Hawkins also clearly misapprehends the import of some of his chosen
    authorities. Notably, he is mistaken that the First Circuit “also places the burden
    of proof on the employer and . . . has cited [our] holding in White . . . as
    supporting that conclusion.” Aplt. Opening Br. at 18 (citation omitted). He is
    correct only with regard to the fact that in Ward v. Massachusetts Health
    Research Institute, Inc., 
    209 F.3d 29
     (1st Cir. 2000), the First Circuit relied upon
    White for the proposition that an employer is required to marshal some essential-
    function evidence. See Ward, 
    209 F.3d at 35
    . In the end, the Ward court spoke
    not to the employer’s deficient persuasive powers, but to the employer’s failure to
    adduce any evidence that the function at issue (job attendance) was essential. See
    
    id.
     (“What is noticeably absent from the record is any evidence that the nature of
    [the plaintiff’s] position requires that he be present during specific hours of the
    day.” (emphasis added)). The employer’s failure to augment the record in some
    appreciable manner prompted the court to find a genuine disputed issue of
    material fact precluding summary judgment for the employer. Likewise, in its
    subsequent reasonable-accommodation assessment, the court observed that the
    employer “need[ed] to produce at least some modicum of evidence” to support its
    position. 
    Id. at 37
    . We consequently find it patent that this case is not the
    36
    panacea Mr. Hawkins imagines it to be. 10
    Ultimately, even if we suspected that Mr. Hawkins’s proffered authorities
    were somewhat persuasive in our efforts to resolve his appeal—which we do
    not—we would not supplant our own principled decisional pathway with those of
    our sister circuits. We reprise our view that the district court meticulously and
    faithfully followed the roadmap dictated by Tenth Circuit precedent. Pursuant to
    that well-settled approach, it consulted the factors specified by the EEOC
    regulations—under which the employer is obliged to come forward with a
    modicum of evidence. Guided by that regulatory framework, the court examined
    the evidence and made a legal determination. Insofar as our caselaw tacitly
    alludes to some burden-shifting, at no point does it relieve Mr. Hawkins of the
    burden of persuading the court that he could perform the essential functions of the
    facility-supervisor position, with or without accommodation. We consequently
    reject Mr. Hawkins’s main argument for reversal and conclude that the district
    court correctly handled the relevant legal burdens in this case.
    10
    The same is true of Stone v. City of Mount Vernon, 
    118 F.3d 92
     (2d
    Cir. 1997), to which Mr. Hawkins implicitly refers by including it in a block
    quotation: specifically, the employer completely failed to come forward with any
    evidence regarding the challenged functions. See 
    118 F.3d at
    99–100 (“While
    plainly the employer’s judgment as to which functions are essential is highly
    relevant[,] . . . we have seen in the record no evidence [of the employer’s
    contentions]. Plainly, therefore, it cannot be said that the reason the FAB and
    FPB positions exist is to perform the fire-suppression function.” (emphasis added)
    (citation omitted) (internal quotation marks omitted)).
    37
    B
    Mr. Hawkins also argues that the district court impermissibly conflated
    critical concepts in its calculus. In his view, when the court found that driving a
    company truck was an essential function of the facility-supervisor position, it
    confused job qualifications with essential functions—viz., it “failed to recognize
    that uniform performance of the function is the standard—not uniform
    enforcement of the qualification.” Aplt. Opening Br. at 22 (emphasis omitted).
    Though we do not gainsay that “qualifications” and “functions” are in some sense
    distinguishable terms, we find thoroughly unpersuasive Mr. Hawkins’s
    contentions that the district court muddled the two in reaching its decision.
    Rather, we are satisfied that the court properly assessed whether the ability to
    drive a DOT-regulated truck was an essential function of the facility-supervisor
    role—and that it did so in accordance with well-settled circuit precedent.
    SHS’s position of mandating DOT certification for facility supervisors is
    unremarkable; that is, it “was not insisting upon a job qualification merely of its
    own devising.” Albertson’s, Inc. v. Kirkingburg, 
    527 U.S. 555
    , 570 (1999). Its
    requirement stems directly from the federal motor-safety regulations, which
    preclude a person from “driv[ing] a commercial motor vehicle unless he/she is
    qualified to drive,” 
    49 C.F.R. § 391.11
    (a), by, inter alia, being “medically
    certified as physically qualified to do so,” 
    id.
     § 391.41(a)(1)(i). “The validity of
    these regulations is unchallenged, they have the force of law, and they contain no
    38
    qualifying language about individualized determinations.” Albertson’s, 
    527 U.S. at 570
    . Thus, as a matter of law, if an essential function of a position is the
    ability to operate a commercial vehicle, then being DOT-certified is an automatic,
    binding, and utterly unavoidable requirement. See 
    id.
     (finding an employer that
    terminated a commercial driver had an “unconditional obligation” and
    “consequent right” to follow DOT regulations addressing certain physical
    qualifications). Accordingly, the district court here did not err in its focus on the
    ability to operate a commercial truck.
    More broadly, we consider it well-settled that, as long as its specifications
    are “job-related, uniformly-enforced, and consistent with business necessity, the
    employer has the right to establish what a job is and what is required to perform
    it.” Tate, 
    268 F.3d at 993
    ; accord Kellogg v. Energy Safety Servs. Inc., 
    544 F.3d 1121
    , 1127 (10th Cir. 2008). We have approved a wide variety of such
    specifications, be they listed as skills, qualifications, or certifications. For
    example, in Tate, we approved an employer’s choice to mandate DOT
    certification for “operat[ing] a commercial motor vehicle (CMV) hauling propane
    and other refined fuel products,” 
    268 F.3d at 990
    , and found that the employee
    was not a qualified individual with a disability when his seizure disorder
    precluded certification, see 
    id.
     at 995–96. Moreover, as noted above, in
    Hennagir, we found that the employer could permissibly require training and
    certification in the facility’s safety protocol. See 
    587 F.3d at
    1262–64. Indeed, in
    39
    Picture People, we concluded that verbal-communication skills were essential to
    the “performer position” in a photography studio. See 684 F.3d at 986–87.
    As applied here, SHS adduced evidence that it uniformly required facility
    supervisors to be able to operate its DOT-regulated route trucks—a skill that, by
    law, mandates DOT certification. See Aplt. App. at 594. This evidence satisfied
    the district court that the ability-to-drive requirement was job-related and tailored
    to SHS’s business needs. When the district court concluded that this was an
    essential function of the facility-supervisor position, it followed as a matter of
    law that DOT certification was necessary as well. In any event, it is pellucid that
    SHS can require this certification of its facility supervisors. See 
    29 C.F.R. § 1630.15
    (e) (providing that an employer may defend against an unlawful-
    discrimination claim by asserting that a “challenged action is required or
    necessitated by another Federal law or regulation”). We repeat our conclusion
    that the district court’s principled analysis was correct, and we consequently
    reject as off-point and meritless Mr. Hawkins’s conflated-analysis argument.
    C
    Having set forth in detail the reasons why the district court properly heeded
    circuit precedent, we need not (and thus do not) reach the merits of whether
    estoppel theories should have precluded Mr. Hawkins from bringing his ADAAA
    claim. We are satisfied to affirm the district court’s grant of summary judgment
    in favor of SHS without addressing the alternative estoppel basis for its ruling.
    40
    IV
    For the reasons stated herein, we AFFIRM the district court’s grant of
    summary judgment to SHS.
    41