Gabriel Carrera v. Bayer Corp , 727 F.3d 300 ( 2013 )


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  •                                             PRECEDENTIAL
    UNITED STATES COURT OF APPEALS
    FOR THE THIRD CIRCUIT
    ___________
    No. 12-2621
    ___________
    GABRIEL JOSEPH CARRERA,
    on behalf of himself and all others similarly situated
    v.
    BAYER CORPORATION;
    BAYER HEALTHCARE, LLC.,
    Appellants
    *(Amended Pursuant to the Clerk‟s Order of July 5, 2012)
    _______________________
    On Appeal from the District Court
    for the District of New Jersey
    D.C. Civil No. 2-08-cv-04716
    (Honorable Jose L. Linares)
    ______________
    Argued April 16, 2013
    Before: SCIRICA, SMITH and CHAGARES, Circuit Judges
    (Filed: August 21, 2013)
    Matthew R. Ford, Esq.
    Christopher D. Landgraff, Esq.
    Rebecca Weinstein Bacon, Esq. [ARGUED]
    Bartlit, Beck, Herman, Palenchar & Scott
    54 West Hubbard Street
    Room 300
    Chicago, IL 60654
    Counsel for Appellants
    Caroline F. Bartlett, Esq.
    James E. Cecchi, Esq.
    Lindsey H. Taylor, Esq.
    Carella, Byrne, Cecchi, Olstein, Brody & Agnello
    5 Becker Farm Road
    Roseland, NJ 07068
    Joe R. Whatley, Jr., Esq. [ARGUED]
    Whatley, Drake & Kallas
    1540 Broadway
    37th Floor
    New York, NY 10036
    Counsel for Appellee
    John Beisner, Esq.
    Skaden, Arps, Slate, Meagher & Flom
    1440 New York Avenue, N.W.
    Washington, DC 20005
    Counsel for Amicus Curiae
    _________________
    2
    OPINION OF THE COURT
    _________________
    SCIRICA, Circuit Judge.
    In this Fed. R. Civ. P. 23(f) appeal, Bayer
    Corporation and Bayer Healthcare contest the
    certification of a class of consumers who purchased
    Bayer‟s One-A-Day WeightSmart diet supplement in
    Florida. The sole issue on appeal is whether the class
    members are ascertainable. While this interlocutory
    appeal was pending, we decided Marcus v. BMW of
    North America, LLC, in which we held “[i]f class
    members are impossible to identify without extensive
    and individualized fact-finding or „mini-trials,‟ then a
    class action is inappropriate.” 
    687 F.3d 583
    , 593 (3d
    Cir. 2012). We explained that if class members cannot
    be ascertained from a defendant‟s records, there must
    be “a reliable, administratively feasible alternative,”
    but we cautioned “against approving a method that
    would amount to no more than ascertaining by
    potential class members‟ say so.” 
    Id. at 594
    . In light of
    Marcus, we will vacate the class certification order and
    remand.
    I.
    Gabriel Carrera brings this class action against Bayer
    Corporation and Bayer Healthcare, LLC (“Bayer”), claiming
    that Bayer falsely and deceptively advertised its product One-
    A-Day WeightSmart. WeightSmart was promoted as a
    multivitamin and dietary supplement that had metabolism-
    3
    enhancing effects. The recommended daily dose was one
    tablet and prices ranged from about $8.99 for fifty tablets to
    about $16.99 for one hundred tablets. Bayer sold
    WeightSmart in retail stores, such as CVS, until January
    2007. Bayer did not sell it directly to consumers. Carrera
    alleges Bayer falsely claimed that WeightSmart enhanced
    metabolism by its inclusion of epigallocatechin gallate, a
    green tea extract.
    Carrera initially sought to certify a nationwide class
    under Fed. R. Civ. P. 23(b)(3) bringing a claim under the
    New Jersey Consumer Fraud Act, as Bayer‟s headquarters is
    in New Jersey. The court denied certification, concluding that
    New Jersey law did not apply to out-of-state customers. This
    order is not before us on appeal.
    Carrera then moved to certify a Rule 23(b)(3) class of
    Florida consumers under the Florida Deceptive and Unfair
    Trade Practices Act. One of Bayer‟s challenges to
    certification, and the issue on this appeal, is whether the class
    members are ascertainable. In this case, there is no dispute
    that class members are unlikely to have documentary proof of
    purchase, such as packaging or receipts. And Bayer has no
    list of purchasers because, as noted, it did not sell
    WeightSmart directly to consumers.
    Carrera advanced two ways to ascertain the class: first,
    by retailer records of online sales and sales made with store
    loyalty or rewards cards; second, by affidavits of class
    members, attesting they purchased WeightSmart and stating
    the amount they purchased. Bayer challenged this latter
    method on the ground that memories of putative class
    members will be unreliable. Bayer argued that, in Carrera‟s
    4
    own deposition testimony, he failed to remember when he
    purchased WeightSmart and that he confused it with
    WeightSmart Advanced and other generic or similar products
    (none of which are part of this litigation). In response, Carrera
    produced a declaration of James Prutsman, who works for a
    company that verifies and processes class settlement claims,
    in which Prutsman stated there are ways to verify the types of
    affidavits at issue here and screen out fraudulent claims.
    The court certified the class, defined as all persons
    who purchased WeightSmart in Florida.1 It characterized the
    issue of ascertainability as one of manageability, stating
    “„speculative problems with case management‟” are
    insufficient to prevent class certification. Carrera v. Bayer
    Corp., Civ. A. No. 08-4716, 
    2011 WL 5878376
    , at *4 (D.N.J.
    Nov. 22, 2011) (quoting Klay v. Humana, Inc., 
    382 F.3d 1241
    , 1272-73 (11th Cir. 2004)). The court concluded Carrera
    had satisfied his burden, noting “that the claims involved will
    be relatively small and Plaintiff points to methods to verify
    claims.” 
    Id.
     Bayer appealed. It contends Carrera has failed to
    demonstrate the class is ascertainable because there is no
    evidence that any retailer records show who purchased
    WeightSmart. Bayer also argues that the use of unverifiable
    affidavits to ascertain class members fails to comply with
    Rule 23 and violates its rights under the due process clause.
    II.
    The District Court had jurisdiction under 
    28 U.S.C. § 1
    The class definition does not include a class period. Bayer
    sold WeightSmart from December 2003 through January
    2007.
    5
    1332(d). We have jurisdiction under 
    28 U.S.C. § 1292
    (e) and
    Fed. R. Civ. P. 23(f). “We review a class certification order
    for abuse of discretion, which occurs if the district court‟s
    decision rests upon a clearly erroneous finding of fact, an
    errant conclusion of law or an improper application of law to
    fact.” In re Hydrogen Peroxide Antitrust Litig., 
    552 F.3d 305
    ,
    312 (3d Cir. 2008) (quotation omitted). “Whether an incorrect
    legal standard has been used is an issue of law to be reviewed
    de novo.” 
    Id.
     (quotation omitted).
    III.
    In Marcus, we explained the concept of
    ascertainability at length for the first time. 687 F.3d at 592-
    95. The claim in Marcus was that Bridgestone run-flat tires
    (“RFTs”) were defective because they were highly
    susceptible to flats; could only be replaced, not repaired; and
    were highly priced. Id. at 588. The district court certified a
    Rule 23(b)(3) class consisting of “any and all current and
    former owners and lessees of 2006, 2007, 2008, and 2009
    BMW vehicles equipped with run-flat tires manufactured by
    Bridgestone . . . and sold or leased in New Jersey whose Tires
    have gone flat and been replaced.” Id. at 590 (quotation and
    alterations omitted). The defendants appealed, and we vacated
    the order certifying the class.
    Before turning to the explicit requirements of Rule 23
    in Marcus, we addressed two “preliminary matters”: first,
    whether the class was clearly defined, and second, “whether
    the class must be (and, if so, is in fact) objectively
    ascertainable.” Id. at 591. We concluded the class was not
    clearly defined. At the least, the definition of the class was
    broader than intended and did not define the claims, issues, or
    6
    defenses to be treated on a class-wide basis. Id. at 592.
    Accordingly, we remanded the case for clarification of the
    class definition.
    We then addressed ascertainability. We began by
    stating, “[m]any courts and commentators have recognized
    that an essential prerequisite of a class action, at least with
    respect to actions under Rule 23(b)(3), is that the class must
    be currently and readily ascertainable based on objective
    criteria.” Id. at 592-93 (citing cases). “If class members are
    impossible to identify without extensive and individualized
    fact-finding or „mini-trials,‟ then a class action is
    inappropriate.” Id. at 593. We noted, “[s]ome courts have
    held that where nothing in company databases shows or could
    show whether individuals should be included in the proposed
    class, the class definition fails.” Id. (citing cases).
    We then explained the
    ascertainability requirement serves several
    important objectives. First, it eliminates serious
    administrative burdens that are incongruous
    with the efficiencies expected in a class action
    by insisting on the easy identification of class
    members. Second, it protects absent class
    members by facilitating the best notice
    practicable under Rule 23(c)(2) in a Rule
    23(b)(3) action. Third, it protects defendants by
    ensuring that those persons who will be bound
    by the final judgment are clearly identifiable.
    Id. (citations and quotations omitted).
    7
    We set forth why the “proposed class action raise[d]
    serious ascertainability issues.” Id. Defendant BMW
    explained that it could not determine by its records which
    vehicles fit the definition of the class because it did not keep
    records of which cars got fitted with Bridgestone RFTs,
    because some customers may have changed tires (of which
    BWM had no record), and because BMW would not have
    known which customers experienced flat tires. Id. at 593-94.
    We stated that if plaintiff were to attempt to re-certify a class
    on remand, the court “must resolve the critical issue of
    whether the defendants‟ records can ascertain class members
    and, if not, whether there is a reliable, administratively
    feasible alternative.” Id. at 594. We cautioned “against
    approving a method that would amount to no more than
    ascertaining by potential class members‟ say so. For example,
    simply having potential class members submit affidavits that
    their Bridgestone RFTs have gone flat and been replaced may
    not be proper or just.” Id. (quotation omitted). “Forcing
    BMW and Bridgestone to accept as true absent persons‟
    declarations that they are members of the class, without
    further indicia of reliability, would have serious due process
    implications.” Id.
    IV.
    A.
    “A party seeking class certification must affirmatively
    demonstrate his compliance with” Rule 23. Wal-Mart Stores,
    Inc. v. Dukes, 
    131 S. Ct. 2541
    , 2551 (2011). “Class
    certification is proper only „if the trial court is satisfied, after
    a rigorous analysis, that the prerequisites‟ of Rule 23 are
    met.” Hydrogen Peroxide, 552 F.3d at 309 (quoting Gen. Tel.
    8
    Co. of Sw. v. Falcon, 
    457 U.S. 147
    , 161 (1982)). “Frequently
    that „rigorous analysis‟ will entail some overlap with the
    merits of the plaintiff‟s underlying claim. That cannot be
    helped. „[T]he class determination generally involves
    considerations that are enmeshed in the factual and legal
    issues comprising the plaintiff‟s cause of action.‟” Dukes, 
    131 S. Ct. at 2551-52
     (alteration in original) (quoting Falcon, 
    457 U.S. at 160
    ). “Factual determinations necessary to make Rule
    23 findings must be made by a preponderance of the
    evidence.” Hydrogen Peroxide, 552 F.3d at 320.
    These same standards apply to the question of
    ascertainability. Class ascertainability is “an essential
    prerequisite of a class action, at least with respect to actions
    under Rule 23(b)(3).” Marcus, 687 F.3d at 592-93. “[T]here
    is „no reason to doubt‟” that the “rigorous analysis”
    requirement “„applies with equal force to all Rule 23
    requirements.‟” Hydrogen Peroxide, 552 F.3d at 309 n.5
    (quoting In re Initial Pub. Offering Sec. Litig., 
    471 F.3d 24
    ,
    33 n.3 (2d Cir. 2006)). Accordingly, a plaintiff must show, by
    a preponderance of the evidence, that the class is “currently
    and readily ascertainable based on objective criteria,”
    Marcus, 687 F.3d at 593, and a trial court must undertake a
    rigorous analysis of the evidence to determine if the standard
    is met.
    “A party‟s assurance to the court that it intends or
    plans to meet the requirements [of Rule 23] is insufficient.”
    Hydrogen Peroxide, 552 F.3d at 318. A plaintiff may not
    merely propose a method of ascertaining a class without any
    evidentiary support that the method will be successful. “„A
    critical need‟” of the trial court at certification “„is to
    determine how the case will be tried,‟” id. at 319 (quoting
    Fed. R. Civ. P. 23 advisory committee‟s note, 2003
    9
    Amendments), including how the class is to be ascertained.
    B.
    Ascertainability mandates a rigorous approach at the
    outset because of the key roles it plays as part of a Rule
    23(b)(3) class action lawsuit. First, at the commencement of a
    class action, ascertainability and a clear class definition allow
    potential class members to identify themselves for purposes
    of opting out of a class. Second, it ensures that a defendant‟s
    rights are protected by the class action mechanism. Third, it
    ensures that the parties can identify class members in a
    manner consistent with the efficiencies of a class action.
    “„[T]he class-action device saves the resources of both
    the courts and the parties by permitting an issue potentially
    affecting every [class member] to be litigated in an
    economical fashion under Rule 23.‟” Falcon, 
    457 U.S. at 155
    (second alteration in original) (quoting Califano v. Yamasaki,
    
    442 U.S. 682
    , 701 (1979)). If a class cannot be ascertained in
    an economical and “administratively feasible” manner,
    Marcus, 687 F.3d at 594, significant benefits of a class action
    are lost. See id. at 593 (explaining ascertainability “eliminates
    serious administrative burdens that are incongruous with the
    efficiencies expected in a class action” (quotation omitted)).
    Accordingly, a trial court should ensure that class members
    can be identified “without extensive and individualized fact-
    finding or „mini-trials,‟” id., a determination which must be
    made at the class certification stage.
    In this case, the ascertainability question is whether
    each class member purchased WeightSmart in Florida. If this
    were an individual claim, a plaintiff would have to prove at
    10
    trial he purchased WeightSmart. A defendant in a class action
    has a due process right to raise individual challenges and
    defenses to claims, and a class action cannot be certified in a
    way that eviscerates this right or masks individual issues. See
    McLaughlin v. Am. Tobacco Co., 
    522 F.3d 215
    , 231-32 (2d
    Cir. 2008) (rejecting a “fluid recovery” method of
    determining individual damages, in which aggregate damages
    would be based on estimates of the number of defrauded class
    members and their average loss), abrogated on other grounds
    by Bridge v. Phoenix Bond & Indem. Co., 
    553 U.S. 639
    (2008); see also Dukes, 
    131 S. Ct. at 2561
     (rejecting a method
    of class certification in which a sample set of class members
    would be used to extrapolate average damages). A defendant
    has a similar, if not the same, due process right to challenge
    the proof used to demonstrate class membership as it does to
    challenge the elements of a plaintiff‟s claim. See Marcus, 687
    F.3d at 594 (“Forcing BMW and Bridgestone to accept as true
    absent persons‟ declarations that they are members of the
    class, without further indicia of reliability, would have serious
    due process implications.”). Ascertainability provides due
    process by requiring that a defendant be able to test the
    reliability of the evidence submitted to prove class
    membership.
    The method of determining whether someone is in the
    class must be “administratively feasible.” Id. A plaintiff does
    not satisfy the ascertainability requirement if individualized
    fact-finding or mini-trials will be required to prove class
    membership. Id. at 593. “Administrative feasibility means
    that identifying class members is a manageable process that
    does not require much, if any, individual factual inquiry.”
    William B. Rubenstein & Alba Conte, Newberg on Class
    Actions § 3:3 (5th ed. 2011); see also Bakalar v. Vavra, 237
    
    11 F.R.D. 59
    , 64 (S.D.N.Y. 2006) (“Class membership must be
    readily identifiable such that a court can determine who is in
    the class and bound by its ruling without engaging in
    numerous fact-intensive inquiries.”).
    The type of challenge to the reliability of evidence that
    is required will vary based on the nature of the evidence. For
    example, if Carrera produces retailer records that purport to
    list purchasers of WeightSmart, Bayer can challenge the
    reliability of those records, perhaps by deposing a corporate
    record-keeper.2 In sum, to satisfy ascertainability as it relates
    to proof of class membership, the plaintiff must demonstrate
    his purported method for ascertaining class members is
    reliable and administratively feasible, and permits a defendant
    to challenge the evidence used to prove class membership.
    V.
    Carrera contends the class is ascertainable. He points
    to two types of evidence that can be used to determine who is
    a class member. First, he argues the class can use records
    from retailers, which purportedly track customers who make
    purchases online or who use loyalty cards. Second, he
    proposes using affidavits of class members attesting to their
    purchases of WeightSmart. We conclude that, based on the
    evidence produced below, neither method satisfies Carrera‟s
    burden to show the class is ascertainable.
    2
    Although some evidence used to satisfy ascertainability,
    such as corporate records, will actually identify class
    members at the certification stage, ascertainability only
    requires the plaintiff to show that class members can be
    identified.
    12
    A.
    Carrera argues he will be able to show class
    membership using retailer‟s records of sales made with
    loyalty cards, e.g., CVS ExtraCare cards,3 and records of
    online sales. Carrera points to a Federal Trade Commission
    (FTC) settlement with CVS regarding the sale of a
    supplement that was falsely advertised as boosting immune
    systems. The supplement was sold only at CVS. The FTC
    stated in its press release regarding the settlement that
    “[p]urchasers will be identified through the CVS ExtraCare
    card program and sales on cvs.com.” A1089.
    Bayer contends there is no evidence that any other
    retailer of WeightSmart has membership cards, that the FTC
    case is inapposite as it was a stipulated settlement in a non-
    Rule 23 context,4 in which some of the money paid might go
    to class members but did not have to, and that it is speculative
    whether CVS or any other retailer‟s records will reveal
    customers who purchased WeightSmart.
    The evidence put forth by Carrera is insufficient to
    show that retailer records in this case can be used to identify
    3
    ExtraCare cards are membership cards that offer customers
    discounts. A1091.
    4
    Settlement classes raise different certification issues than
    litigation classes. See Amchem Prods., Inc. v. Windsor, 
    521 U.S. 591
    , 620 (1997). Accordingly, we question whether the
    FTC‟s proposals for identifying purchasers, made as part of a
    settlement (and a non-class action settlement at that), bear any
    relevance to the issue of ascertainability in this case.
    13
    class members. Depending on the facts of a case, retailer
    records may be a perfectly acceptable method of proving
    class membership. But there is no evidence that a single
    purchaser of WeightSmart could be identified using records
    of customer membership cards or records of online sales.
    There is no evidence that retailers even have records for the
    relevant period. The FTC‟s press release does not support a
    finding that these records can determine class membership on
    the facts of this case. Moreover, we have no evidence the
    FTC‟s method was successful.
    B.
    Carrera also contends the class is ascertainable using
    affidavits of class members. He advances three arguments.
    First, due to the low value of the claims, class members will
    be unlikely to submit fraudulent affidavits. Second, because
    Bayer‟s total liability will not depend on the reliability of the
    affidavits, the ascertainability requirement should be relaxed.
    Finally, a screening method such as the one described in the
    Prutsman Declaration will ensure any unreliable affidavits are
    identified and disregarded.
    1.
    Because the claims are of low value, Carrera argues it
    is less likely someone would fabricate a claim. He concedes it
    is unlikely customers would have retained a receipt, but
    asserts this is irrelevant to possible falsification. He contrasts
    the claims at issue here to those in Marcus, which involved
    more money and more complicated issues of fact as to
    whether an individual was a class member.
    14
    This argument fails because it does not address a core
    concern of ascertainability: that a defendant must be able to
    challenge class membership. This is especially true where the
    named plaintiff‟s deposition testimony suggested that
    individuals will have difficulty accurately recalling their
    purchases of WeightSmart.5 Cf. In re Phenylpropanolamine
    (PPA) Prods. Liab. Litig., 
    214 F.R.D. 614
    , 618-19 (W.D. Wa.
    2003) (concluding affidavits could not be used to ascertain a
    class because the named plaintiffs had difficulty remembering
    the products they bought that contained PPA).
    2.
    Carrera also argues ascertainability is less important in
    this case because Bayer‟s total liability will be determined at
    trial, and will not increase or decrease based on the affidavits
    submitted. As noted, this is an action under the Florida
    Deceptive and Unfair Trade Practices Act (FDUTPA), 
    Fla. Stat. § 501.201
     et seq. “[A] consumer claim for damages
    under FDUTPA has three elements: (1) a deceptive act or
    unfair practice; (2) causation; and (3) actual damages.”
    Rollins, Inc. v. Butland, 
    951 So. 2d 860
    , 869 (Fla. Dist. Ct.
    App. 2006). There is no requirement of actual reliance on the
    deceptive act. See Fitzpatrick v. Gen. Mills, Inc., 
    635 F.3d 1279
    , 1282-83 (11th Cir. 2011) (citing Davis v. Powertel,
    Inc., 
    776 So. 2d 971
    , 973 (Fla. Dist. Ct. App. 2000)). “[T]he
    question is not whether the plaintiff actually relied on the
    alleged deceptive trade practice, but whether the practice was
    5
    As mentioned, in his deposition testimony, Carrera was
    unable to remember when he purchased WeightSmart and
    confused WeightSmart with other products that are not part of
    this litigation.
    15
    likely to deceive a consumer acting reasonably in the same
    circumstances.” Davis, 
    776 So. 2d at 974
    .
    Contending liability under the FDUTPA is not based
    on individual issues, Carrera argues that he can prove at trial
    that Bayer owes a refund for every purchase of
    WeightSmart.6 Since Bayer‟s records show it sold
    approximately $14 million worth of WeightSmart in Florida,
    Carrera asserts Bayer‟s liability will be determined at trial to
    be $14 million—no more, no less. As a result, affidavits
    attesting to class membership will only be used to determine
    to whom to pay the refund, and in what amount.
    Under no circumstances, Carrera assures us, will Bayer
    pay any amount other than $14 million, even if a significant
    number of inaccurate claims are submitted and paid out. For
    example, if claims are made for more than $14 million, and
    inaccurate or false claims cannot be screened out, claimants
    will simply receive less than they are entitled to. And if too
    few claims are made, Carrera asserts the excess funds will not
    be returned to Bayer but will go to an unclaimed property
    fund. Carrera contrasts this situation with Marcus. In Marcus,
    there was no evidence of the total number of RFTs allegedly
    purchased in violation of the consumer protection laws.
    Accordingly, each claim submitted would have increased the
    amount of money the defendants would have had to pay. As a
    6
    Bayer argues that if it is liable, its liability will be limited to
    refunding the premium consumers paid for WeightSmart
    based on its metabolism-enhancing claims. For purposes of
    this appeal, it makes no difference whether customers would
    be entitled to a full refund or merely a refund of this
    premium.
    16
    result, the defendants had a more substantial interest in
    screening out false claims. Because Bayer‟s total liability
    cannot be so affected by unreliable affidavits, Carrera argues
    Bayer lacks an interest in challenging class membership.
    Under Carrera‟s view, if fraudulent or inaccurate
    claims are paid out, the only harm is to other class members.
    But ascertainability protects absent class members as well as
    defendants, Marcus, 687 F.3d at 593, so Carrera‟s focus on
    Bayer alone is misplaced. It is unfair to absent class members
    if there is a significant likelihood their recovery will be
    diluted by fraudulent or inaccurate claims. In this case, as we
    discuss, there is the possibility that Carrera‟s proposed
    method for ascertaining the class via affidavits will dilute the
    recovery of true class members.
    Bayer too has an interest in ensuring it pays only
    legitimate claims. If fraudulent or inaccurate claims
    materially reduce true class members‟ relief, these class
    members could argue the named plaintiff did not adequately
    represent them because he proceeded with the understanding
    that absent members may get less than full relief.7 When class
    members are not adequately represented by the named
    plaintiff, they are not bound by the judgment. See Hansberry
    v. Lee, 
    311 U.S. 32
    , 42 (1940) (explaining that due process
    requires the interests of absent class members to be
    adequately represented for them to be bound by the
    judgment). They could then bring a new action against Bayer
    and, perhaps, apply the principles of issue preclusion to
    7
    We express no opinion on whether absent class members
    would be successful in arguing they were not adequately
    represented on this ground.
    17
    prevent Bayer from re-litigating whether it is liable under the
    FDUTPA. Bayer has a substantial interest in ensuring this
    does not happen. Accordingly, we reject Carrera‟s argument
    that the level of proof for ascertainability should be relaxed
    because Bayer‟s ultimate liability will not be based on the
    affidavits.
    3.
    Finally, Carrera argues that a screening method such as
    the one described in the Prutsman Declaration will ensure that
    Bayer pays claims based only on reliable affidavits. In his
    declaration, James Prutsman states that he works at Rust
    Consulting, Inc., a firm that has administered class
    settlements for nearly 25 years. A992. He explains that Rust
    “employs numerous methods to detect claims that are
    submitted fraudulently.” A995. “For example, the firm runs
    programmatic audits to identify duplicate claims, outliers, and
    other situations. In addition, Rust has successfully utilized
    fraud prevention techniques where by [sic] the claim form
    offers claim options that do not reflect valid product
    descriptions, prices paid, geographic locations or
    combinations of such factors.” 
    Id.
     “By providing claims
    options such as a very high pill count or significantly higher
    purchase price in this case, fraudulent claim filers would
    naturally be inclined to select options that they believe would
    increase their claim value. As such, techniques such as these
    can be used to effectively [eliminate] fraudulent claims.” 
    Id.
    Bayer maintains the Prutsman Declaration is
    insufficient to satisfy the reliability standard because it only
    addresses methods for allocating payment to a settlement
    class. This fact is important, according to Bayer, because
    18
    there are different standards for approving a settlement class
    than for certifying a litigation class, and because Prutsman
    does not opine that his method would satisfy the standard for
    class certification. Bayer also argues that just because some
    defendants have agreed to use such techniques in
    administering a class settlement, it does not mean that it is
    sufficiently reliable.
    The Prutsman Declaration does not show the affidavits
    will be reliable.8 Nor does it propose a model for screening
    claims that is specific to this case. And even if Prutsman
    produced a model that is specific to this case, we doubt
    whether it could satisfy the ascertainability requirement. At
    this stage in the litigation, the district court will not actually
    see the model in action. Rather, it will just be told how the
    model will operate with the plaintiff‟s assurances it will be
    effective. Such assurances that a party “intends or plans to
    meet the requirements” are insufficient to satisfy Rule 23.
    Hydrogen Peroxide, 552 F.3d at 318; see also Comcast Corp.
    v. Behrend, 
    133 S. Ct. 1426
    , 1434 (2013) (rejecting
    contention that Rule 23 is satisfied by an assurance that the
    plaintiffs can produce a damages model capable of measuring
    damages caused by a specific theory of antitrust impact).
    Carrera has suggested no way to determine the reliability of
    such a model. For example, even if a model screens out a
    8
    Based on this conclusion, we do not need to reach Bayer‟s
    argument that the District Court erred by considering the
    Prutsman Declaration, which was produced with Carrera‟s
    reply brief in support of its motion for class certification.
    Accordingly, we will deny Bayer‟s motion to supplement the
    appellate record, which relates solely to this issue.
    19
    significant number of claims, say 25%, there is probably no
    way to know if the true number of fraudulent or inaccurate
    claims was actually 5% or 50%.9
    As Marcus was decided after the trial court certified
    the class, Carrera should have another opportunity to satisfy
    the ascertainability requirement. Accordingly, we will afford
    Carrera the opportunity to submit a screening model specific
    to this case and prove how the model will be reliable and how
    it would allow Bayer to challenge the affidavits. Mere
    assurances that a model can screen out unreliable affidavits
    will be insufficient.10
    VI.
    For the foregoing reasons, we will vacate the District
    Court‟s order certifying the class action and remand for
    further proceedings consistent with this opinion. Because
    Marcus was decided after the court‟s certification of the class,
    Carrera should be allowed to conduct further, limited
    9
    Carrera‟s ability to meet the ascertainability requirement
    using a screening model is further in doubt due to his inability
    to clearly remember his purchases of WeightSmart, although
    the District Court did not determine whether his testimony
    was reliable. It would appear that the less reliable a class
    member‟s memory is, the more reliable any screening method
    would have to be.
    10
    Bayer also argues that because the statute of limitations
    will bar some claims, the class cannot be ascertained. Because
    the class is defined as all purchasers of WeightSmart in
    Florida, whether an individual‟s claim is barred by the statute
    of limitations is not an aspect of ascertainability in this case.
    20
    discovery on the issue of ascertainability and afforded another
    opportunity to satisfy the ascertainability requirement.
    21