Quilez-Velar v. Ox Bodies, Inc. , 823 F.3d 712 ( 2016 )


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  •           United States Court of Appeals
    For the First Circuit
    Nos. 15-1466
    15-1533
    BERARDO A. QUILEZ-VELAR; MARTA BONELLI-CABAN;
    BERARDO A. QUILEZ-BONELLI; CARLOS A. QUILEZ-BONELLI,
    Plaintiffs, Appellants/Cross-Appellees,
    v.
    OX BODIES, INC.,
    Defendant, Appellee/Cross-Appellant.
    APPEALS FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF PUERTO RICO
    [Hon. Silvia L. Carreño-Coll, U.S. Magistrate Judge]
    Before
    Lynch, Selya, and Lipez,
    Circuit Judges.
    José Luis Ubarri, with whom David W. Román and Ubarri & Roman
    Law Office were on brief, for appellants.
    John M. Roche, with whom Kevin S. Taylor, Arron Nesbitt,
    Taylor Anderson, LLP, Francisco J. Colon-Pagan, Francisco E.
    Colon-Ramirez, and Colón & Colón, P.S.C. were on brief, for
    appellee.
    May 9, 2016
    LYNCH, Circuit Judge.              This diversity case arose from
    the   death    of    Maribel         Quilez-Bonelli       following       an   automobile
    accident involving Maribel's Jeep Liberty and a truck in use by
    Municipality of San Juan employees that had fitted onto its trash
    body an underride guard designed by Ox Bodies, Inc. ("Ox Bodies").
    Maribel's family members brought suit in federal court against Ox
    Bodies, seeking damages for, inter alia, defective design of the
    underride guard.           A jury found Ox Bodies strictly liable for
    defective     design     and    awarded       the     plaintiffs    damages       totaling
    $6,000,000.      By special verdict form, the jury assigned 20% of
    responsibility       for       the    damages        to   Ox   Bodies,     80%    to    the
    Municipality of San Juan, which was not a party in the suit, and
    0% to Maribel.       The presiding magistrate judge ruled that judgment
    should   enter      on   the    strict       liability     claim    in    favor    of   the
    plaintiffs and that under Puerto Rico law, Ox Bodies should be
    held responsible only for 20% of the damages award, which equaled
    $1,200,000.      This appeal and cross-appeal followed.
    Ox Bodies appeals the verdict, contending that the court
    should not have allowed the plaintiffs' expert to testify on an
    alternative      underride           guard    design,      and     that    absent       such
    testimony, no reasonable jury could have found for the plaintiffs.
    The plaintiffs appeal the order limiting their recovery, arguing
    that under Puerto Rico law Ox Bodies should be held "jointly and
    severally liable to the plaintiff[s] for the totality of the
    - 2 -
    damages" -- the entire $6,000,000 award -- such that "the risk of
    loss of having to pay the entire judgment without obtaining
    contribution is borne by the defendant joint tortfeasor, not by
    the plaintiffs."
    We affirm the court's decision to admit the plaintiffs'
    expert's testimony and so reject Ox Bodies' appeal.          On the
    plaintiffs' appeal, in the absence of clear Puerto Rico law, we
    certify to the Puerto Rico Supreme Court the question of the extent
    of Ox Bodies' liability for the damages award.
    I.
    On October 1, 2010, Maribel Quilez-Bonelli, a then 28-
    year-old married woman and mother, was driving on a highway
    overpass near the city of San Juan in a 2004 Jeep Liberty with her
    toddler son when her Jeep collided with a stopped or slowly moving
    truck in use by Municipality of San Juan employees.       The truck
    bore an underride guard near its rear that had been designed by Ox
    Bodies.    The front of Maribel's Jeep hit the truck from behind and
    underrode the truck's trash body such that the truck penetrated
    the Jeep's passenger compartment and struck Maribel, lacerating
    her head and face. Maribel died from resulting injuries on October
    6, 2010.
    Maribel's family members, Berardo A. Quilez-Velar, Marta
    Bonelli-Caban, Berardo A. Quilez-Bonelli, and Carlos A. Quilez-
    - 3 -
    Bonelli1 (collectively "Quilez"), brought suit in a Puerto Rico
    court and in federal court.2          In a Puerto Rico trial court, Quilez
    filed an amended complaint on November 1, 2011, alleging negligence
    and seeking damages from, inter alia, the Commonwealth of Puerto
    Rico,       the   Puerto   Rico   Highway   and   Transportation    Authority,
    Integrand Assurance Company ("Integrand"), and the Municipality of
    San Juan.         The Municipality of San Juan and Integrand brought a
    third-party complaint for indemnification or contribution against,
    inter alia, Ox Bodies and its parent company, Truck Bodies &
    Equipment International, Inc.           On May 16, 2014, the Municipality
    of San Juan, through its insurer, deposited with the Puerto Rico
    court       its    maximum   policy    limit,     $500,000,   for    potential
    distribution if found liable.          The Puerto Rico court ordered that
    the funds be distributed to the plaintiffs and dismissed the
    Municipality of San Juan from suit.             Quilez expressly represented
    to this court that "[n]o settlement agreement was ever executed
    and [Quilez] granted no release [to] or assumed any liability"
    from the Municipality of San Juan or its insurer.                   Ox Bodies
    1 For simplicity, we refer to Maribel Quilez-Bonelli as
    "Maribel" and the plaintiffs as "Quilez" going forward.
    2 Maribel's surviving husband, Francisco Felix-Navas, and
    her surviving son, Francisco Andres Felix-Quilez, together also
    filed suit in a Puerto Rico court seeking damages resulting from
    Maribel's accident. The two Puerto Rico suits were consolidated.
    - 4 -
    conceded this point at oral argument, no document in the record
    establishes otherwise, and so we accept Quilez's representation.
    On March 20, 2013, Quilez filed an amended complaint in
    its diversity action in federal district court against Ox Bodies,
    its parent company, and other defendants, for defective design and
    negligence under Puerto Rico law. Ox Bodies and its parent company
    brought      a     third-party       claim      for      contribution      and/or
    indemnification against, inter alia, the Municipality of San Juan.
    On May 16, 2014, the Municipality of San Juan notified the federal
    court that it had deposited $500,000 that day with the Puerto Rico
    court.    On September 4, 2014, the federal court dismissed the
    Municipality of San Juan from the suit, without objection from Ox
    Bodies.   Quilez-Velar v. Ox Bodies, Inc., No. CIV. 12-1780, 
    2014 WL 4385418
    , at *2, *3 (D.P.R. Sept. 4, 2014), reconsideration
    denied, No. CIV. 12-1780, 
    2014 WL 4656649
    (D.P.R. Sept. 17, 2014).
    At the time of this appeal, the only remaining defendant is Ox
    Bodies.
    On January 26, 2015, Ox Bodies filed a pre-trial motion
    in limine to exclude the testimony of Quilez's expert, Perry
    Ponder,   arguing     that    "Mr.   Ponder's    report     is    devoid   of   any
    scientific       analysis    or   calculations    that    would    support"     his
    conclusion that his proposed alternative underride guard design
    "would have been [a] safer design in the instant accident," and
    that his opinions should be excluded under Daubert v. Merrell Dow
    - 5 -
    Pharmaceuticals, Inc., 
    509 U.S. 579
    (1993).3   Ox Bodies supported
    its motion with excerpts from Ponder's deposition and expert
    report, but it did not request that Ponder testify at a Daubert
    hearing.4   Quilez opposed the motion.
    After reviewing both parties' submissions and relevant
    discovery materials, the magistrate judge, presiding pursuant to
    28 U.S.C. § 636, denied the motion to exclude Ponder's testimony.
    Quilez-Velar v. Ox Bodies, Inc., No. CIV. 12-1780, 
    2015 WL 418151
    ,
    at *7 (D.P.R. Feb. 1, 2015).   The magistrate judge acknowledged Ox
    Bodies' argument that Ponder "did not perform specific tests or
    calculations in the course of his analysis," but found, first,
    that Ox Bodies failed to "show that these specific tests must have
    been carried out to provide a foundation for Ponder's opinions,"
    3    Ox Bodies described a range of foregone calculations,
    including, inter alia, that Ponder "did not calculate the peak
    force of the collision, the coefficient of restitution, or the
    average or maximum forces of the impact"; "he did not conduct any
    analysis to determine the energy absorption that the proposed
    design change could sustain"; the reports he "relied upon evaluated
    impacts and forces that were different from those involved in this
    case"; "he did not perform any finite element analysis"; and he
    did not calculate the "loads created in a collision between a truck
    and a passenger vehicle."
    4    A trial court may order a Daubert hearing to screen the
    proffer of scientific testimony to determine whether it crosses
    the Daubert threshold. See, e.g., Samaan v. St. Joseph Hosp., 
    670 F.3d 21
    , 31 (1st Cir. 2012). "[T]he scope of a Daubert hearing is
    not limited to an appraisal of an expert's credentials and
    techniques but also entails an examination of his conclusions to
    determine whether they flow rationally from the methodology
    employed." 
    Id. at 32.
    - 6 -
    and second, that upon "review[ing] Ponder's report, . . . its
    conclusions are well-explained, and its use of crash-test data
    appears appropriate."     
    Id. At trial,
    when Quilez moved to qualify Ponder as an
    expert,   Ox   Bodies   requested    voir    dire,   which   was   initially
    conducted in front of the jury and during which Ponder acknowledged
    that he did not crash-test his proposed alternative design and
    that none of his "rear underride guard designs" had ever been
    adopted by tilt or dump bed manufacturers.             Ox Bodies conceded
    that Ponder was qualified as an accident reconstructionist but
    renewed its objection to Ponder's testifying about an alternative
    design for an underride guard.              The court permitted further
    questioning by both parties outside the presence of the jury,
    spanning more than nine pages of transcript, before ultimately
    ruling that Ponder was qualified to testify about an alternative
    underride guard design.
    Following a 12-day trial, the jury returned a verdict
    finding Ox Bodies strictly liable to Quilez for defective design.
    In the magistrate judge's March 3, 2015, memorandum and order,
    damages were apportioned as described earlier.         Quilez-Velar v. Ox
    Bodies, Inc., No. CIV. 12-1780, 
    2015 WL 898255
    , at *1–3 (D.P.R.
    Mar. 3, 2015).
    - 7 -
    II.
    Ox Bodies appeals the admission of Ponder's testimony
    regarding   a   feasible   safer   alternative   design,   arguing   that
    without Ponder's testimony no reasonable jury could have found it
    liable.     "Under Puerto Rican tort law governing design defect
    claims, if the plaintiff proves that 'the product's design is the
    proximate cause of the damage,' the burden shifts to the defendant
    to prove that 'the benefits of the design at issue outweigh the
    risk of danger inherent in such a design.'"           Quintana-Ruiz v.
    Hyundai Motor Corp., 
    303 F.3d 62
    , 69 (1st Cir. 2002) (quoting
    Aponte Rivera v. Sears Roebuck de P.R., Inc., 
    144 P.R. Dec. 830
    ,
    840 n.9 (1998), 1998 P.R.-Eng. 324486 n.9, 
    1998 WL 198857
    n.9).
    Here, the court instructed the jury that if it found that the
    plaintiffs met their burden, then "[i]n deciding whether the
    benefits outweigh the risks," it should consider a number of
    factors, including "[t]he feasibility of an alternative safer
    design at the time of manufacture."        Neither party contests this
    instruction.5
    Ponder's expert report pointed to two key deficiencies
    in Ox Bodies' guard design: first, "[a]pproximately the outside 16
    5    As we said in Quintana-Ruiz, "[t]here are at least three
    views of how the existence, or non-existence, of a mechanically
    feasible alternative design fits into the risk-utility balancing
    
    test," 303 F.3d at 71
    , and "[i]t is not clear what view the Puerto
    Rico courts would follow," 
    id. at 72;
    see 
    id. at 71–72
    (describing
    the three views).
    - 8 -
    inches on each side of the rear of the [Ox Bodies] truck is left
    without any underride guarding at all," and second, "the guard is
    not sufficiently braced against impacts" because "[t]he outside
    span of the horizontal member is a beam supported at an interior
    location, but unsupported at the end," such that part of the guard
    "would begin to fail at a load of approximately 7,000 lbs."            He
    further opined that "[t]he frontal collision safety features in
    [Maribel's] Jeep Liberty were rendered ineffective because the
    . . . truck lacked a substantially constructed underride guard."
    Ponder's report went on to conclude that "[t]here exist
    feasible safer alternative rear impact guard designs for" the truck
    involved here.    He noted a number of published studies that "offer
    completed truck underride guard designs."       He outlined a design
    suited for the instant truck, "consist[ing] of a horizontal member
    positioned at the or very close to the rear extremity of the
    vehicle, long enough to protect the entire width of the truck,"
    and "[d]iagonal bracing . . . placed at the truck bed's interior
    longitudinal members and side longitudinal members at a 45 degree
    angle along with a vertical support to complete the truss at the
    side extremities."
    Our review of the magistrate judge's decision to admit
    Ponder's    testimony   on   alternative   design   is   for   abuse   of
    discretion.      Kumho Tire Co. v. Carmichael, 
    526 U.S. 137
    , 152
    (1999).    "Absent a material error of law, we will not second-guess
    - 9 -
    such a discretionary determination unless it appears that the trial
    court 'committed a meaningful error in judgment.'"         United States
    v. Jordan, 
    813 F.3d 442
    , 445 (1st Cir. 2016) (quoting Ruiz-Troche
    v. Pepsi Cola of P.R. Bottling Co., 
    161 F.3d 77
    , 83 (1st Cir.
    1998)).    We find that under Federal Rule of Evidence 702, the
    magistrate judge's decision to admit Ponder's testimony was within
    her discretion.
    Under Federal Rule of Evidence 702:
    A witness who is qualified as an expert by
    knowledge, skill, experience, training, or
    education may testify in the form of an
    opinion or otherwise if:
    (a) the expert's scientific, technical, or
    other specialized knowledge will help the
    trier of fact to understand the evidence or to
    determine a fact in issue;
    (b) the testimony is based on sufficient facts
    or data;
    (c) the testimony is the product of reliable
    principles and methods; and
    (d) the expert has reliably applied the
    principles and methods to the facts of the
    case.
    Fed. R. Evid. 702.    The magistrate judge here must "serve[] as the
    gatekeeper for expert testimony by 'ensuring that [it] . . . both
    rests on a reliable foundation and is relevant to the task at
    hand.'"6    Milward   v.   Rust-Oleum   Corp.,   No.   13-2132,   
    2016 WL 6
       Although Ox Bodies' opening brief contends that whether
    a trial court has acted as a gatekeeper is subject to de novo
    review, see Smith v. Jenkins, 
    732 F.3d 51
    , 64 (1st Cir. 2013), Ox
    Bodies has not argued that the magistrate judge failed to perform
    that role.   And so any argument on that issue is waived.     See
    - 10 -
    1622620,   at    *3    (1st   Cir.   Apr.   25,    2016)   (second       and   third
    alteration in original) (quoting 
    Daubert, 509 U.S. at 597
    ).
    There is no dispute that testimony regarding alternative
    design was necessary to determine a fact at issue.                The magistrate
    judge acted within her discretion in determining that Ponder's
    "scientific, technical, or other specialized knowledge" would help
    the jury determine that issue.           Fed. R. Evid. 702(a).           Ponder, a
    licensed   professional       engineer      with    a   degree    in     mechanical
    engineering, has designed and tested at least four underride
    guards, reviewed crash tests and underride crashes, and lectured
    or   published    on    the    subjects     of     underride     guard     history,
    regulations, and side underride guard protections.                     He is also
    certified by the Accreditation Commission for Traffic Accident
    Reconstruction as an accident reconstructionist and has performed
    more than 400 accident reconstructions, including about twenty in
    underride cases.       On appeal, Ox Bodies has not raised a developed
    United States v. Zannino, 
    895 F.2d 1
    , 17 (1st Cir. 1990). Even if
    properly raised, such an argument would be difficult in these
    circumstances, as Ox Bodies neither requested a Daubert hearing
    nor mentioned Daubert in its objection to Ponder's qualifications
    during the voir dire at trial, and the magistrate judge entertained
    Ox Bodies' arguments in ruling on its motion in limine and
    permitted additional questioning at trial before ruling on
    Ponder's qualifications. See 
    Jenkins, 732 F.3d at 64
    ("If we are
    satisfied that the court did not altogether abdicate its role under
    Daubert, we review for abuse of discretion its decision to admit
    or exclude expert testimony.").
    - 11 -
    objection to the relevance of these experiences to the issue at
    hand.
    Rather, the central question before us concerns whether
    the magistrate judge abused her discretion in concluding that
    Ponder's testimony on alternative design was sufficiently reliable
    to survive the admissibility threshold.7                 Ox Bodies asserts that
    Ponder's testimony should have been excluded under Daubert because
    the expert must have actually tested the alternative design, either
    physically or using computer modeling, and Ponder did not do so.
    Ox   Bodies'        argument   rests     on   a   profound   misunderstanding    of
    Daubert, which eschews such per se approaches.                     See Kumho Tire
    
    Co., 526 U.S. at 150
    (holding that the inquiry "depends upon the
    particular          circumstances   of    the     particular   case    at   issue");
    Milward v. Acuity Specialty Prods. Grp., Inc., 
    639 F.3d 11
    , 16–20
    (1st        Cir.    2011)   (conducting       a    fact-specific      "reliability"
    inquiry).          "Testing is certainly one of the most common and useful
    reliability guideposts for a district court when contemplating
    proposed Rule 702 evidence."             Lapsley v. Xtek, Inc., 
    689 F.3d 802
    ,
    815 (7th Cir. 2012).           However, this circuit has never adopted a
    7 Under Daubert, courts may consider a number of factors
    in assessing reliability: whether a theory or technique can be and
    has been tested; whether it has been put through peer review and
    has been published; whether it has a high error rate; and whether
    it has been generally accepted within the relevant scientific or
    technical community.   See Kumho Tire 
    Co., 526 U.S. at 149
    –150;
    
    Ruiz-Troche, 161 F.3d at 80
    –81.
    - 12 -
    rule that an expert himself must have tested an alternative design,
    much less by building one.   We decline to adopt either requirement
    as a bright-line rule or as applied to this case.   See Kumho Tire
    
    Co., 526 U.S. at 150
    ("[T]he factors [Daubert] mentions do not
    constitute a 'definitive checklist or test.'" (quoting 
    Daubert, 509 U.S. at 593
    )); Johnson v. Manitowoc Boom Trucks, Inc., 
    484 F.3d 426
    , 431–33 (6th Cir. 2007) (declining to hold that testing
    is a requirement or the sole, dispositive factor under Daubert);
    Wagner v. Hesston Corp., 
    450 F.3d 756
    , 760 n.8 (8th Cir. 2006)
    (noting that lack of testing is a "non-dispositive factor");
    Watkins v. Telsmith, Inc., 
    121 F.3d 984
    , 990 (5th Cir. 1997)
    ("Testing is not an 'absolute prerequisite' to the admission of
    expert testimony on alternative designs, but Rule 702 demands that
    experts 'adhere to the same standards of intellectual rigor that
    are demanded in their professional work.'" (quoting Cummins v.
    Lyle Indus., 
    93 F.3d 362
    , 369 (7th Cir. 1996))); 
    Cummins, 93 F.3d at 369
    ("We do not mean to suggest, of course, that hands-on
    testing is an absolute prerequisite to the admission of expert
    testimony.").8
    8    Neither of the reported appellate cases Ox Bodies cites
    hold that testing is a dispositive requirement under Daubert
    either. See Zaremba v. Gen. Motors Corp., 
    360 F.3d 355
    (2d Cir.
    2004); Oddi v. Ford Motor Co., 
    234 F.3d 136
    (3d Cir. 2000).
    Moreover, unlike here, those cases involved review of exclusion of
    expert testimony. See 
    Zaremba, 360 F.3d at 357
    –58; 
    Oddi, 234 F.3d at 156
    , 158. Ox Bodies also cites an unpublished opinion of a
    divided Tenth Circuit panel that is irrelevant. See Hoffman v.
    - 13 -
    In any event, the record permitted a factfinder to
    conclude that Ponder did do some testing, and here, the record
    supports the magistrate judge's determination that there were
    alternate methods of testing from which the jury could evaluate
    reliability.    See    
    Johnson, 484 F.3d at 431
    .     First,   Ponder
    testified that he looked at "crash test information" from several
    sources,   including   a   1980   study    available    from   the   National
    Technical Information System, "a number of patents," "crash test
    data from 1971 from Aeronautical Research Associates," and other
    crash tests done under contract with the National Highway Traffic
    Safety Administration ("NHTSA").          Ox Bodies argues that Ponder's
    conclusion regarding the guard in the instant case does not "fit"
    with or follow from the studies.           In its motion in limine, Ox
    Bodies argued that those studies "evaluated impacts and forces
    that were different from those involved in this case."            But Ponder
    testified in voir dire that at least some of the "information is
    transferrable . . . [to] underride guards for any type of vehicle."
    He explained in response to a question about crash-test data asked
    during his deposition, for example, that "a 90-degree frontal test
    is what NHTSA uses as confirmation for crash worthiness and
    Ford Motor Co., 
    493 F. App'x 962
    , 975–76 (10th Cir. 2012) (finding
    expert testimony unreliable where expert did not compare his
    laboratory test results to either the accelerations on the buckle
    in the instant accident or to published rollover crash tests, and
    inconsistently claimed there was a lack of rollover crash data).
    - 14 -
    passenger safety in crash types -- all crash types."        Upon review
    of the arguments and documents in the record properly submitted to
    us,9 we cannot say that it was an abuse of discretion for the
    magistrate judge to conclude, as she did at trial, that "[Ponder]
    had enough data that did not require him to conduct further testing
    for research to base his opinions on."
    Second, Ponder testified that he tested his design using
    "stress   calculation[s]."    Cf.   
    Lapsley, 689 F.3d at 815
      ("A
    mathematical or computer model is a perfectly acceptable form of
    test."). His reliance in part on a Society of Automotive Engineers
    ("SAE") article, in order to determine the energy involved as well
    as "compar[e] the damage to [the SAE article's] damage matrix
    index," was appropriate.10   Ponder also testified that he performed
    "photogrammetry analysis" using calculations performed by hand to
    test how his design would react upon impact.
    9    We limit our review to those documents in the record.
    We will not consider supposed excerpts from Ponder's notes that
    both Ox Bodies and Quilez attempt to submit to this court, as
    neither party indicates their location in the record before the
    magistrate judge, and we have not been able to pinpoint any of
    these references.
    10   On appeal, Ox Bodies argues that because Ponder failed
    to identify any industry manufacturer or government agency that
    has adopted his design or a "similar" one, his design lacks "peer
    review." Ox Bodies did not raise this exact argument in its motion
    in limine or at trial, and so it is waived. See Sierra Club v.
    Wagner, 
    555 F.3d 21
    , 26 (1st Cir. 2009).
    - 15 -
    Ox    Bodies    contends      that     Ponder     failed   to   perform
    calculations its expert said were necessary in testing his design.
    However, as the magistrate judge correctly stated in ruling on Ox
    Bodies' motion in limine, "Defendants do not show that these
    specific tests must have been carried out to provide a foundation
    for   Ponder's    opinions."           Moreover,    Ponder's     report     and   his
    responses    when   questioned         during    his     deposition    demonstrate
    support for his findings.               We emphasize that in most cases,
    "[v]igorous cross-examination, presentation of contrary evidence,
    and careful instruction on the burden of proof are the traditional
    and appropriate means of attacking shaky but admissible evidence."
    
    Daubert, 509 U.S. at 596
    .     And     here,   Ox   Bodies   "had   ample
    opportunity to cross examine" Ponder "and to use its own expert
    witness -- which it did."              Diefenbach v. Sheridan Transp., 
    229 F.3d 27
    , 31 (1st Cir. 2000).
    Finally, on appeal Ox Bodies argues that Ponder did not
    show that his alternative design would have "withstood the force
    of the crash" and would have prevented intrusion into the passenger
    compartment, or that the alternative design guard would have caused
    "the Jeep to rotate away from the truck on impact, rather than
    continuing further into the trash body."                 Ox Bodies did not raise
    these objections in its motion in limine or in its objections at
    trial. Arguably, the contention is waived. Sierra Club v. Wagner,
    
    555 F.3d 21
    , 26 (1st Cir. 2009).            But even assuming that the more
    - 16 -
    general argument -- that Ponder has not shown that his alternative
    design would have prevented Maribel's injuries -- was properly
    raised, that argument goes to the credibility of his testimony
    that the design was "safer."              As these arguments were appropriate
    to make to the jury when it weighed the evidence, they do not lead
    us to conclude that the testimony's admission was in error.
    In short, admitting Ponder's testimony on alternative
    design was not a "meaningful error in judgment," 
    Ruiz-Troche, 161 F.3d at 83
    (quoting Anderson v. Cryovac, Inc., 
    862 F.2d 910
    , 923
    (1st Cir. 1988)), and we affirm the magistrate judge's decision to
    admit his testimony.
    III.
    The   sole   issue   in    Quilez's   appeal   is   whether   the
    magistrate judge erred by not holding Ox Bodies jointly and
    severally liable11 for the entire $6,000,000 damages award.                   That
    decision was based on a particular reading of the Puerto Rico
    Supreme Court's decisions in Cortijo Walker v. P.R. Water Res.
    Auth., 91 P.R. 557 (1964); Widow of Andino v. P.R. Water Res.
    Auth., 93 P.R. 168 (1966); and Rosario Crespo v. P.R. Water Res.
    Auth., 94 P.R. 799 (1967).           See Quilez-Velar, 
    2015 WL 898255
    , at
    *2-3.        On our reading, those precedents do not clearly answer the
    11Joint and several liability sometimes goes by the name
    "solidary" liability in Puerto Rico. Ramos v. Caparra Dairy, Inc.,
    
    16 P.R. Offic. Trans. 78
    , 81 (1985).
    - 17 -
    question at hand, and the question raises important public policy
    concerns.    Because the issue is determinative of Quilez's appeal,
    we find "the prudent course is to certify the question to that
    court better suited to address the issue."12              Pagán-Colón v.
    Walgreens of San Patricio, Inc., 
    697 F.3d 1
    , 18 (1st Cir. 2012).
    We explain, without in any sense meaning to influence the outcome.
    The underlying assumption of the magistrate judge's
    reasoning is that Ox Bodies had no right of contribution against
    the Municipality of San Juan and that it necessarily followed that
    Quilez could not recover the sum of $6,000,000 against Ox Bodies
    on a joint and several liability theory. There are many questions,
    as discussed below, about whether contribution is or is not
    available,    and   whether   the   reasoning   tying   the   existence   of
    contribution to the existence of joint and several liability is
    valid under Puerto Rico law.        Quilez posits that even if Ox Bodies
    does not have a right of contribution, Ox Bodies is nonetheless
    responsible to Quilez as a jointly and severally liable defendant.
    That is, the municipal cap does not excuse Ox Bodies from paying
    the sum of $6,000,000; and so, it cannot have the effect of
    shifting the risk of non-payment of the full sum to Quilez.
    12   At oral argument, the parties agreed that this court
    could certify the issue, and we subsequently afforded them an
    opportunity to propose language for the certification question.
    - 18 -
    The magistrate judge's March 3, 2015, order read the
    Puerto Rico Supreme Court's decision in Cortijo Walker, which
    disallowed a third-party suit by a defendant against a plaintiff's
    employer covered by Puerto Rico's workmen's compensation statute,
    91   P.R.   at   559,   566,   to   preclude     Ox   Bodies   from   seeking
    contribution from the Municipality of San Juan.                Quilez-Velar,
    
    2015 WL 898255
    , at *2. Then, the magistrate judge held that, under
    Widow of Andino and Rosario Crespo, where "a defendant's general
    right to contribution is lost due to a joint-tortfeasor's statutory
    immunity," 
    2015 WL 898255
    , at *2, in a tort action a "defendant
    should be held liable for the damage only in proportion to its
    fault," 
    id. at *3
    (quoting Widow of Andino, 93 P.R. at 180); see
    Rosario-Crespo, 94 P.R. at 813.13            Ox Bodies urges us to affirm
    based on this reasoning.
    13  In a previous order, the magistrate judge also held that
    Puerto Rico would likely follow Restatement (Third) of Torts:
    Products Liability § 16 (Am. Law Inst. 1998), such that when an
    injury is indivisible, if a plaintiff shows that a defectively
    designed product "is a substantial factor in increasing the
    plaintiff's harm beyond that which would have resulted from other
    causes, the product seller is subject to liability for . . .
    plaintiff's harm attributable to the defect and other causes" and
    is "liable with other parties who bear legal responsibility for
    causing the harm, determined by applicable rules of joint and
    several liability." Restatement (Third) of Torts: Prod. Liab. §
    16 (Am. Law Inst. 1998); see Quilez-Velar v. Ox Bodies, Inc., No.
    CIV. 12-1780, 
    2015 WL 418156
    , at *1, *2 (D.P.R. Feb. 2, 2015).
    Neither party has challenged this predicate conclusion of law. We
    invite the Puerto Rico Supreme Court to weigh in on this point, if
    it chooses to do so, in the course of answering our certified
    question.
    - 19 -
    Quilez disputes both steps in the court's reasoning.
    Quilez argues that the cap on municipal damages at issue here is
    not analogous to the workmen's compensation statute's remedial
    restriction in Cortijo Walker.           This view, according to Quilez,
    finds some support in the statutory text.         The statutory scheme in
    Cortijo Walker was a workmen's compensation scheme barring all
    tort actions against covered employers.           See Cortijo Walker, 91
    P.R. at 560 (quoting the Workmen's Accident Compensation Act of
    1935, § 20, which established that compensation under the Act
    "shall be the only remedy against the employer").               In contrast,
    the municipal damages cap codified at P.R. Laws Ann. tit. 21,
    § 4704 permits liability in "[c]laims against municipalities for
    personal or property damages caused by the fault or negligence of
    the municipality" up to a certain amount, in this case up to the
    "the collectible indemnity actually provided" by the Municipality
    of San Juan's insurance policy, P.R. Laws Ann. tit. 26, § 2004.
    See Quilez-Velar, 
    2015 WL 898255
    , at *2 n.2.            Other jurisdictions
    have recognized this type of municipal damages cap as a partial
    waiver of sovereign immunity.            See, e.g., Morris v. Mass. Mar.
    Acad.,   
    565 N.E.2d 422
    ,   428    (Mass.   1991)    ("The   [governmental
    liability] limitation is contained in the same sentence in which
    sovereign immunity is waived. . . . The cap is one term of the
    waiver.").     In this case, there is an argument that because the
    municipal    damages    cap   operates    differently    than   the   remedial
    - 20 -
    restriction in the workmen's compensation statute by permitting
    suits up to a certain amount of damages, Ox Bodies is able to seek
    at least partial contribution from the Municipality of San Juan.
    It   is    notable   that   the   Municipality        of   San   Juan   has   acted
    consistent with this view, including by depositing its insurance
    policy limit with the Puerto Rico court.               Even while ruling that
    Ox Bodies lacked a right of contribution against the Municipality
    of San Juan, the magistrate judge noted that "[t]heoretically, Ox
    Bodies could seek contribution from the municipality up to the
    limits of its insurance policy."          Quilez-Velar, 
    2015 WL 898255
    , at
    *2 n.4.14
    Ox   Bodies    counters    that    the   municipal     cap   and   the
    workmen's     compensation        remedial      restriction      provision      are
    materially indistinguishable.           It points to the magistrate judge's
    reading of Cortijo Walker as holding that where a statute precludes
    a party's liability, a third-party claim against that party is
    prohibited because it "would amount to doing indirectly what the
    lawmaker has forbidden to be done directly."                 Cortijo Walker, 91
    P.R. at 564.      In Ox Bodies' view, the magistrate judge correctly
    interpreted the municipal damages cap here as a legislative policy
    14  At oral argument, Ox Bodies conceded this point, but
    then argued that nonetheless, "there is no right of contribution
    for the portion of the damages allocated to the Municipality for
    which the plaintiffs are asking the court to hold Ox Bodies
    liable."
    - 21 -
    choice to "protect[] . . . the municipal fisc" and any right to
    contribution as a forbidden attempt to indirectly get at that fisc.
    See Quilez-Velar, 
    2015 WL 898255
    , at *2.
    Quilez suggests that Ox Bodies has misunderstood Cortijo
    Walker's reasoning, suggesting that the quoted language is dicta,
    and   the   court's   holding   actually   resides   in   the   preceding
    paragraph. There, the Cortijo Walker court reasoned that the right
    to contribution was lacking because under the particular statutory
    scheme -- the workmen's compensation statute -- "[t]he employer is
    not liable to the workman in tort," and so "he cannot be a joint
    tortfeasor with the third person and third-party plaintiff."          91
    P.R. at 564. The court explained that the defendant lacked a right
    of contribution against the plaintiff's employer because "[t]he
    workman's claim or remedy against his employer is solely for the
    statutory benefits; his claim against the third party is for
    damages.    Both causes of action are in law different in kind and
    they cannot result in a common legal liability."            
    Id. Quilez argues
    that Cortijo Walker's reasoning is inapposite, as the action
    here against Ox Bodies and the third-party action against the
    Municipality of San Juan both seek damages based in tort; the
    magistrate judge has determined the Municipality of San Juan to be
    a joint-tortfeasor, see Quilez-Velar v. Ox Bodies, Inc., No. CIV.
    12-1780, 
    2015 WL 418156
    , at *2 (D.P.R. Feb. 2, 2015); Quilez-
    Velar, 
    2015 WL 898255
    , at *2, and Ox Bodies has not contested that
    - 22 -
    ruling.     Quilez   suggests      that   practical    inability   to   obtain
    contribution -- here because of a deposit with the Puerto Rico
    court that only by happenstance preceded judgment in the federal
    suit -- poses a legal question concerning proper allocation of
    risk of non-payment from a liable defendant, not concerning whether
    Ox Bodies is unable to seek contribution because of some kind of
    immunity.
    Quilez also views the magistrate judge's subsequent
    reliance on Widow of Andino and Rosario Crespo for the rule that
    a   "defendant   should    be    held   liable   for   the   damage   only   in
    proportion to its fault," Widow of Andino, 93 P.R. at 180; see
    Rosario-Crespo, 94 P.R. at 813, as misplaced.15 See Quilez-Velar,
    
    2015 WL 898255
    , at *2.          Quilez asserts that Puerto Rico case law
    almost always prioritizes a plaintiff's recovery through joint and
    several liability.        Joint and several liability is "[t]he well-
    15  The magistrate judge stated that "[i]t should be noted
    that the Supreme Court's holdings in Widow of Andino and Rosario-
    Crespo were not based on any language in the workers' compensation
    statute."   Quilez-Velar, 
    2015 WL 898255
    , at *2.    Both Widow of
    Andino and Rosario Crespo explicitly rely on Cortijo Walker's
    reading of the workmen's compensation statute as not permitting an
    employer to be held liable in explaining why a defendant should be
    held liable only for its proportion of fault. See Rosario-Crespo,
    94 P.R. at 812–13; Widow of Andino, 93 P.R. at 179–80 (discussing
    the operation of workmen's compensation employer remedial
    restriction to "absolute[ly]" preclude recovery from the employer,
    before holding that "[i]n view of the foregoing, and of the fact
    that this case is governed by the special Act on the matter,
    defendant should be held liable for the damage only in proportion
    to its fault").
    - 23 -
    known rule."   Szendrey v. Hospicare, Inc., 2003 TSPR 18, 
    2003 WL 751582
    (P.R. Feb. 14, 2003); see 
    Ruiz-Troche, 161 F.3d at 87
    (applying Puerto Rico law); Ramos v. Caparra Dairy, Inc., 16 P.R.
    Offic. Trans. 78, 81–82 (1985). Quilez acknowledges that the right
    to contribution establishes that "the onerous effect between the
    joint tortfeasors should be distributed in proportion to their
    respective degree of negligence," Szendrey, 
    2003 WL 751582
    , but,
    in the usual case, Quilez argues, the risk of non-payment of one
    debtor is placed on the defendants, not the plaintiff, 
    id. The theory
    is that even if Ox Bodies lacks a right of contribution --
    either in fact or in law -- the general rule of joint and several
    liability should apply.   No Puerto Rico Supreme Court case cited
    by the parties resolves this issue, which the parties also concede.
    Ultimately, "we lack 'sufficient guidance to allow us
    reasonably to predict' which of our . . . options the Puerto Rico
    Supreme Court would choose," Carrasquillo-Ortiz v. Am. Airlines,
    Inc., 
    812 F.3d 195
    , 199–200 (1st Cir. 2016) (quoting 
    Pagán-Colón, 697 F.3d at 18
    ).   Because the allocation of risk is an important
    question of Puerto Rico tort law, it is determinative of the appeal
    at issue, and the precedents available are not clear, we think the
    better course is to certify the question in accordance with the
    rules of the Puerto Rico Supreme Court.
    - 24 -
    IV.
    We affirm the magistrate judge's decision to admit the
    testimony of Quilez's expert.   We direct entry of judgment against
    Ox Bodies' appeal.
    As to Quilez's appeal, we hereby certify to the Supreme
    Court of Puerto Rico the following question:
    Was the magistrate judge correct in this case
    to limit the damages against Ox Bodies to
    $1,200,000 and deny Quilez a joint and several
    damages award of $6,000,000 against Ox Bodies?
    We welcome the opinion of the Puerto Rico Supreme Court on any
    other aspect of Puerto Rico law that the Justices believe should
    be clarified in order to assist in the resolution of the certified
    question or to give context to their reply.
    The Clerk of this court is directed to forward to the
    Supreme Court of Puerto Rico, under the official seal of this
    court, a copy of the certified question and this opinion, along
    with a copy of the briefs and appendices filed by the parties.   We
    retain jurisdiction over Quilez's appeal pending that court's
    determination.
    - 25 -