Sandoval v. Qualcomm Incorporated ( 2021 )


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  •         IN THE SUPREME COURT OF
    CALIFORNIA
    JOSE M. SANDOVAL,
    Plaintiff and Appellant,
    v.
    QUALCOMM INCORPORATED,
    Defendant and Appellant.
    S252796
    Fourth Appellate District, Division One
    D070431
    San Diego County Superior Court
    37-2014-00012901-CU-PO-CTL
    September 9, 2021
    Justice Cuéllar authored the opinion of the Court, in which
    Chief Justice Cantil-Sakauye and Justices Corrigan, Liu,
    Kruger, Jenkins, and Feuer concurred.
    _______________________
    *     Associate Justice of the Court of Appeal, Second Appellate
    District, Division Seven, assigned by the Chief Justice pursuant
    to article VI, section 6 of the California Constitution.
    SANDOVAL v. QUALCOMM INCORPORATED
    S252796
    Opinion of the Court by Cuéllar, J.
    An electrical parts specialist sustained third degree burns
    to over one third of the surface area of his body after he triggered
    an arc flash from a circuit he did not realize was “live” with
    flowing electricity. The contractor for whom he’d been working
    had removed the protective cover on that live circuit while work
    was underway. A jury concluded that the contractor acted
    negligently and was liable for the injuries. What this case is
    about is whether further liability arises for the company that
    hired the contractor, owned the premises, and operated the
    electrical equipment. The answer here is no.
    Strong public policy considerations readily acknowledged
    in our past decisions generally support a straightforward
    presumption about the responsibilities of hirers and contractors
    for worker injuries in situations like this: A person or entity
    hiring an independent contractor (a “hirer”) ordinarily delegates
    to that independent contractor all responsibility for the safety of
    the contractor’s workers. (SeaBright Ins. Co. v. US Airways,
    Inc. (2011) 
    52 Cal.4th 590
    , 597, 600, 602 (SeaBright).) This
    presumption is rooted in hirers’ reasons for employing
    contractors in the first place, and society’s need for clear rules
    about who’s responsible for avoiding harms to workers when
    contractors are hired. We have therefore generally avoided
    subjecting hirers to tort liability for those workers’ injuries. (See
    
    id.
     at pp. 598–599.) But that presumption gives way to two
    recognized exceptions: where the hirer either withholds critical
    1
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    information regarding a concealed hazard (Kinsman v. Unocal
    Corp. (2005) 
    37 Cal.4th 659
    , 664 (Kinsman)); or retains control
    over the contractor’s work and actually exercises that control in
    a way that affirmatively contributes to the worker’s injury
    (Hooker v. Department of Transportation (2002) 
    27 Cal.4th 198
    ,
    202 (Hooker)). The parties dispute how this presumption of
    delegation and its two exceptions apply here. The Court of
    Appeal affirmed a jury verdict finding the hirer liable under a
    retained control theory of liability.
    What we conclude is that defendant Qualcomm
    Incorporated, the hirer in this case, owed no tort duty to plaintiff
    Martin Sandoval, the parts specialist working for Qualcomm’s
    contractor, at the time of Sandoval’s injuries. Although
    Qualcomm performed the partial power-down process that
    preceded the contractor’s work and resulted in the presence of
    the live electrical circuit, we conclude on the record here that
    Qualcomm neither failed to sufficiently disclose that hazard
    under Kinsman nor affirmatively contributed to the injury
    under Hooker.     We also conclude that the pattern jury
    instruction used in this case — CACI No. 1009B — does not
    adequately capture the elements of a Hooker claim. So we
    reverse the judgment of the Court of Appeal and remand this
    case. The appellate court is instructed to remand this case to
    the trial court, so it can enter judgment for Qualcomm
    notwithstanding the verdict.
    I.
    A.
    Qualcomm powers its San Diego campus from two sources
    of electricity: the local electric utility and Qualcomm’s onsite
    turbine generators — both of which feed into an electrical
    2
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    switchgear.1 The switchgear consists largely of busbars, which
    are large metal bars that conduct electricity much like power
    cables, and medium-voltage circuit breakers, which are 900-
    pound machines that automatically interrupt faulty current
    flow much like their tiny cousins in a house’s fuse box. Each
    circuit breaker and its incoming and outgoing busbars reside
    within a particular cubicle in a long row of tall metal cabinets.
    Each cubicle allows access from the front side and from the back
    side by removing a bolted-on protective cover. The cubicles all
    look very similar, particularly on the back side.
    Qualcomm planned to upgrade its onsite turbine
    generators in 2013. In order to accommodate this upgrade,
    Qualcomm hired TransPower Testing, Inc., an electrical
    engineering service company, to inspect and verify the
    amperage capacity of Qualcomm’s existing switchgear
    equipment. Frank Sharghi, TransPower’s president, is a
    licensed electrical engineer and had worked on that switchgear
    at least monthly for nearly 20 years, since before Qualcomm
    acquired the campus. After Sharghi was unable to locate some
    of the busbars in the “main cogen” circuit during one inspection,
    Sharghi hired Sandoval — an electrical parts supply and repair
    specialist with ROS Electrical Supply & Equipment — to
    accompany him at a second inspection. For this second
    inspection, Qualcomm approved a scope of work authorizing
    TransPower to inspect the main cogen circuit from the front and
    1
    Because this case comes to us on appeal of the denial of
    Qualcomm’s motion for judgment notwithstanding the verdict,
    we summarize the evidence in the light most favorable to
    Sandoval. (See Webb v. Special Electric Co., Inc. (2016) 
    63 Cal.4th 167
    , 192 (Webb).)
    3
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    back. Qualcomm did not authorize TransPower to inspect (or
    expose) any other circuits at this time.
    On the morning of the second inspection, Sharghi
    gathered with his workers — Sandoval, TransPower employee
    George Guadana, and Sharghi’s son, Omid — at the Qualcomm
    power plant. They attended a safety briefing led by Qualcomm
    plant operator Mark Beckelman. In the course of discussing
    several matters pertinent to the job, Beckelman reminded
    Sharghi and his team that some circuits in the switchgear would
    remain live. Both Qualcomm’s employees and TransPower’s
    workers then proceeded to the switchgear room.
    Qualcomm’s employees — Beckelman and two others —
    then performed what we will refer to as the power-down process:
    a process of multiple steps designed to ensure there would be no
    live electricity flowing through the main cogen cubicle during
    the inspection. Qualcomm’s employees wore arc flash protection
    suits for this process. Beckelman directed the TransPower
    team — who, except Guadana, were not wearing arc flash
    suits — to stand at a safe distance. Having shut off all turbine
    and emergency diesel generators, the Qualcomm employees
    disconnected (“racked out”) the corresponding generator
    breakers in the switchgear as well as the “sync-tie” breaker
    connecting the main cogen circuit to utility power. This cut off
    every source of power that could possibly flow to the main cogen
    cubicle. They performed a “lockout/tagout” on each of these
    breakers, a procedure which physically prevents anyone from
    inadvertently reconnecting them. As for the main cogen
    breaker, they not only racked it out and performed a
    lockout/tagout, but they also opened the front panel covering its
    cubicle, physically removed the 900-pound breaker, and placed
    the breaker on the floor in front of the switchgear cabinets. They
    4
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    now had access to the main cogen busbars deep inside the
    cubicle, and they used a voltmeter to confirm that those busbars
    were dead. Sharghi observed the power-down process carefully
    “to make sure they [didn’t] miss anything.” All other circuits in
    the switchgear room remained live with utility power.
    Qualcomm’s employees soon exited the switchgear room.
    But before they did, Beckelman confirmed with Sharghi that
    Sharghi was satisfied with Qualcomm’s power-down of the main
    cogen circuit, and that Sharghi understood which circuits were
    now dead (the “safe zone”) and which were still live (the “no-safe
    zone”).   Sandoval did not hear this exchange between
    Beckelman and Sharghi.
    At approximately this point, Guadana — wearing his arc
    flash protection — performed a grounding process on the back
    side of the main cogen cubicle. He removed the cubicle’s back
    panels, confirmed with TransPower’s own voltmeters that the
    main cogen circuit was indeed dead, bled any residual energy,
    and attached grounding cables as an additional safety
    precaution. The record is inconsistent regarding whether
    Guadana performed this grounding process before or after
    Qualcomm’s employees left the room, and with or without
    Qualcomm’s employees’ assistance and/or supervision.
    After Qualcomm’s employees left the switchgear room,
    Sharghi instructed Guadana — still wearing his arc flash
    protection — to also remove the bolted-on back protective panel
    from the immediately adjacent GF-5 cubicle. As Sharghi well
    knew, the GF-5 circuit was still live with electricity from utility
    power.    Sharghi would later testify that his reason for
    instructing Guadana to remove the GF-5 cubicle’s back panel
    was that he wanted to take photographs for purposes of an
    5
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    unrelated previous inspection. Sharghi told no one that he was
    exposing a live circuit.
    Either while Guadana was removing the back GF-5 panel
    or immediately afterward, the TransPower team began their
    inspection of the main cogen busbars from the front side of the
    switchgear cabinets.
    At some point during this inspection, Sandoval walked
    away from the rest of the TransPower team. Sharghi would
    later testify that he thought Sandoval was going to get paper
    and pen. Sandoval would later recall that he was having trouble
    judging the size of some of the main cogen busbars from the front
    side of the cabinet, and he thought he might be able to get a
    better view from the back. Sandoval called out to Guadana to
    join him. Sandoval asked Guadana to hold a flashlight as they
    both approached the back side of the cabinets. Guadana was
    still wearing his arc flash protection. Sandoval was holding a
    metal tape measure.
    The metal tape measure triggered an arc flash from the
    live, exposed GF-5 circuit. As best as Qualcomm could later
    reconstruct the incident from the physical evidence, Sandoval
    had inadvertently tried to measure the GF-5 busbars instead of
    the main cogen busbars. Sandoval recalls everything going blue,
    and screaming. The 4,160-volt arc flash — thousands of degrees
    in temperature — had set him aflame. Sharghi and Omid heard
    the “bang” as the arc flash tripped the breaker. Guadana and
    Omid managed to smother the fire. Beckelman heard the bang
    from the control room downstairs. When Beckelman reached
    the switchgear room, he found Sandoval lying facedown and
    screaming, “Why was it live? It shouldn’t be live.”
    6
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    Sandoval spent over a month in the hospital. He
    sustained third degree burns — burns so deep the whole body is
    compromised, requiring multiple skin graft procedures — to
    about one third of his body surface, including his face, neck,
    torso, and arms. He also experienced additional second degree
    burns, pneumonia, multiple infections, lasting discomfort, and
    loss of full use of his left arm.
    B.
    Sandoval filed suit against Qualcomm, TransPower, and
    ROS Electrical Supply, asserting claims for negligence and
    premises liability. Qualcomm moved for summary judgment on
    the basis that the presumption of delegation should shield it
    from liability here. Denying the motion, the trial court found a
    triable issue as to whether Qualcomm affirmatively contributed
    to Sandoval’s injury. Before trial began, Qualcomm objected to
    the use of CACI No. 1009B — the pattern jury instruction
    setting out the elements of a Hooker claim — on the ground that
    it didn’t adequately convey the element of affirmative
    contribution. The trial court denied the objection. At the same
    time, the trial court noted its intention to instruct the jury that
    Kinsman — the case pertaining to a hirer’s duty to disclose
    concealed hazards on the hirer’s premises — did not require
    Qualcomm to disclose the live circuits to Sandoval personally.
    As a result, Sandoval withdrew his premises liability claim
    against Qualcomm.
    Following trial, the jury returned a special verdict
    imposing liability on Qualcomm for Sandoval’s injuries.
    Applying CACI No. 1009B, the jury found that Qualcomm
    retained control over the safety conditions of the worksite, that
    Qualcomm negligently exercised that control, and that
    7
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    Qualcomm’s negligence was a substantial factor in causing
    Sandoval’s injuries. The jury awarded Sandoval over $1 million
    in past and future medical expenses and $6 million in
    noneconomic damages. It apportioned the fault 46 percent to
    Qualcomm, 45 percent to TransPower, and 9 percent to
    Sandoval.
    Qualcomm moved for judgment notwithstanding the
    verdict and for a new trial. The trial court rejected Qualcomm’s
    argument that it was entitled to judgment notwithstanding the
    verdict for lack of any triable issue on affirmative contribution.
    The court granted Qualcomm’s motion for a new trial, however,
    on the ground that the jury had improperly apportioned
    liability.
    The Court of Appeal affirmed. It, too, rejected both of
    Qualcomm’s arguments:         that CACI No. 1009B was an
    inaccurate statement of the law as it relates to hirer liability,
    and that Qualcomm wasn’t liable to Sandoval because it did not
    affirmatively contribute to his injuries. (Sandoval v. Qualcomm
    Inc. (2018) 
    28 Cal.App.5th 381
    , 417–420 (Sandoval).)
    We granted review to resolve whether a hirer of an
    independent contractor may be liable to a contractor’s employee
    based only on the hirer’s failure to undertake certain safety
    measures to protect the contractor’s employees, and whether
    CACI No. 1009B accurately states the relevant law.
    II.
    A.
    When a person or organization hires an independent
    contractor, the hirer presumptively delegates to the contractor
    the responsibility to do the work safely. (SeaBright, supra, 52
    Cal.4th at pp. 597, 600, 602; Kinsman, 
    supra,
     
    37 Cal.4th 659
    ,
    8
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    671.) This presumption is grounded in two major principles:
    first, that independent contractors by definition ordinarily
    control the manner of their own work; and second, that hirers
    typically hire independent contractors precisely for their greater
    ability to perform the contracted work safely and successfully.
    (Privette v. Superior Court (1993) 
    5 Cal.4th 689
    , 693 (Privette).)
    Because this actual transfer of control tends to be desirable for
    both private parties and society, the long-standing common law
    rule was that a hirer bore no liability for injuries caused by the
    negligence of the contractor. (Privette, 
    supra,
     5 Cal.4th at p. 693;
    see Snyder v. Southern Cal. Edison Co. (1955) 
    44 Cal.2d 793
    ,
    799; Green v. Soule (1904) 
    145 Cal. 96
    , 99–100; Frassi v.
    McDonald (1898) 
    122 Cal. 400
    , 402; Callan v. Bull (1896) 
    113 Cal. 593
    , 598.)
    But ability to prevent an injury is not the only important
    consideration in the formulation of tort doctrines. Courts have
    now diluted the original, plain vanilla common law rule in
    various ways depending on the identity of the injured party.
    Where an injury befalls a hapless third party, the paramount
    concerns have been about ensuring victim compensation. Lest
    the victim be limited to suing an insolvent contractor, courts
    have extended various theories of direct and vicarious liability
    so the injured third party can recover from the hirer. (Privette,
    
    supra,
     5 Cal.4th at pp. 694–695.) As between an unrelated third
    party and a hirer, courts have preferred to let the loss lie with
    the party for whose benefit the contracted work was
    undertaken. (Id. at p. 694.)
    9
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    Conversely, where the injury falls on a “contract worker,”2
    concerns about the distribution of tort burdens as between the
    hirer and contractor have become paramount: Given that the
    Workers’ Compensation Act protects the contractor — but not
    the hirer3 — from tort liability, and already ensures
    compensation for contract worker injuries, we have concluded
    that it is ordinarily unfair to let a contract worker recover from
    the hirer for the contractor’s negligence. (See Toland v. Sunland
    Housing Group, Inc. (1998) 
    18 Cal.4th 253
    , 270 (Toland).) The
    hirer is typically less knowledgeable and more poorly positioned
    to prevent injury to the contract workers than the contractor is.
    (Privette, 
    supra,
     5 Cal.4th at pp. 693, 700.) Typically, the hirer
    indirectly pays for workers’ compensation insurance in the
    contract price. (Id. at p. 699.) And the contractor’s insurance
    premiums and, often, personal relationship with its workers
    already give the contractor compelling incentives to ensure a
    safe workplace. (See id. at pp. 693, 700.) We refer to this
    principle that a hirer is ordinarily not liable to the contract
    2
    We use the term “contract worker” herein as a shorthand
    for the independent contractor personally, the independent
    contractor’s   employees,    the    independent    contractor’s
    subcontractors personally, the subcontractors’ employees, and
    so on. (See, e.g., Padilla v. Pomona College (2008) 
    166 Cal.App.4th 661
    , 668–671, 676 (Padilla) [applying Privette
    doctrine to subcontractor's employee]; accord, Khosh v. Staples
    Construction Co., Inc. (2016) 
    4 Cal.App.5th 712
    , 718–719, 721
    (Khosh) [same].)
    3
    In Pacific Gas & Electric Co. v. Industrial Accident
    Commission (1919) 
    180 Cal. 497
    , we held unconstitutional the
    award of workers’ compensation against a person other than the
    immediate employer. (See id. at p. 503.)
    10
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    workers as the Privette doctrine, for the first case in which we
    announced it.
    Over time, we’ve recast our primary rationale for the
    Privette doctrine in terms of delegation rather than workers’
    compensation. Because we typically expect contractors to
    perform the contracted work more safely than hirers, we have
    endorsed a “strong policy” of presuming that a hirer delegates
    all control over the contracted work, and with it all concomitant
    tort duties, by entrusting work to a contractor. (SeaBright,
    supra, 52 Cal.4th at p. 596.) In light of this presumption, we
    have refused to extend liability to hirers even on theories of
    nominally “direct” liability, such as negligent failure to require
    precautions or negligent hiring of an incompetent contractor.
    (Toland, 
    supra,
     18 Cal.4th at p. 265; Camargo v. Tjaarda
    Dairy (2001) 
    25 Cal.4th 1235
    , 1241 (Camargo).) We reasoned
    that liability for a hirer’s failure to ensure the contractor takes
    reasonable care is “in essence ‘vicarious’ or ‘derivative,’ ” and
    thus impermissible under the Privette doctrine. (Toland, at p.
    265; see Camargo, at p. 1241.) Likewise, even where workers’
    compensation is not available, we have refused to let an
    independent contractor personally sue a hirer under a vicarious
    liability theory, reasoning that society can readily expect a
    competent contractor to have both good reason and knowledge
    to exercise responsibility over the contractor’s own personal
    safety. (Tverberg v. Fillner Construction, Inc. (2010) 
    49 Cal.4th 518
    , 521 (Tverberg I).)
    But the Privette doctrine has its limits. Sometimes a hirer
    intends to delegate its responsibilities to the contractor in
    principle but, by withholding critical safety information, fails to
    effectively delegate its responsibilities in practice; or a hirer
    delegates its responsibilities only partially by retaining control
    11
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    of certain activities directly related to the contracted work.
    When such situations arise, the Privette doctrine gives way to
    exceptions. In Kinsman, we articulated the rule that a
    landowner-hirer owes a duty to a contract worker if the hirer
    fails to disclose to the contractor a concealed premises hazard.
    (Kinsman, supra, 37 Cal.4th at p. 664.) And in Hooker, we
    articulated the rule that a hirer owes a duty to a contract worker
    if the hirer retains control over any part of the work and actually
    exercises that control so as to affirmatively contribute to the
    worker’s injury. (Hooker, 
    supra,
     27 Cal.4th at p. 202.)
    B.
    Bearing these principles in mind, we begin by considering
    whether this case implicates our presumption of delegation,
    and, if so, whether the concealed hazards exception applies here.
    The answers are yes and no, respectively.
    1.
    A presumptive delegation of tort duties occurs when the
    hirer turns over control of the worksite to the contractor so that
    the contractor can perform the contracted work. Our premise is
    ordinarily that when the hirer delegates control, the hirer
    simultaneously delegates all tort duties the hirer might
    otherwise owe the contract workers. (Tverberg I, supra, 49
    Cal.4th at p. 528; Kinsman, 
    supra,
     37 Cal.4th at p. 671.)
    Whatever reasonable care would otherwise have demanded of
    the hirer, that demand lies now only with the contractor. If a
    contract worker becomes injured after that delegation takes
    place, we presume that the contractor alone — and not the
    hirer — was responsible for any failure to take reasonable
    precautions.
    12
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    That said, this presumption gives way to the two
    recognized exceptions that apply where delegation is either
    ineffective or incomplete. We briefly consider the exception for
    the former situation — the concealed hazards exception.
    In Kinsman we recognized that a landowner-hirer cannot
    effectively delegate its duties respecting a concealed hazard
    without disclosing that hazard to the contractor. (See Kinsman,
    
    supra,
     37 Cal.4th at p. 674.) In this context, a “concealed”
    hazard means something specific: a hazard that the hirer either
    knows or reasonably should know exists, and that the contractor
    does not know exists and could not reasonably discover without
    the hirer’s disclosure. (Id. at p. 675.) We draw no distinction
    between a hazard whose very existence is concealed and a
    hazard which is in some way apparent but whose dangerousness
    is concealed. (Id. at p. 678.) The sufficiency of the hirer’s
    disclosure is “measured by a negligence standard,” that is, a
    standard of reasonable care. (Id. at p. 680.) If the hirer does not
    sufficiently disclose the concealed hazard, the hirer retains its
    tort duties owed to the contract workers respecting that hazard.
    A contrary conclusion would cut against the rationale justifying
    Privette’s presumption of delegation. A contractor is not best
    situated to perform work safely when the contractor lacks
    critical information about relevant hazards. (Kinsman, supra,
    37 Cal.4th at p. 679; see Hooker, 
    supra,
     27 Cal.4th at p. 213.)
    Nor is there any unfairness in holding the hirer liable where
    only the hirer possessed that critical knowledge. (See Toland,
    
    supra,
     18 Cal.4th at p. 267.)
    2.
    The record evidence leaves no question that Qualcomm
    both turned over control of the worksite and sufficiently
    13
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    disclosed all relevant concealed hazards before Sandoval’s
    injury occurred. We therefore presume that Qualcomm owed
    Sandoval no tort duty respecting his injury, subject only to the
    retained control exception which we discuss in the subsequent
    section.
    There is no dispute that Qualcomm turned over control of
    the worksite to TransPower before the injury. Although the
    record contains some ambiguity regarding when exactly the
    Qualcomm employees left the switchgear room, and when
    exactly TransPower began performing its inspection of the main
    cogen breaker, it is undisputed that both of these things
    occurred before Sandoval’s injury. We need not resolve whether
    the turning over of control occurred before or after Guadana
    performed the grounding process. Even if Qualcomm did not
    turn over control until after the grounding process, Sandoval’s
    injury occurred at least several minutes later still — well into
    TransPower’s inspection of the main cogen circuit. The evidence
    therefore triggers a presumption that Qualcomm had delegated
    to TransPower all duties Qualcomm otherwise would have owed
    to Sandoval by the time of Sandoval’s injury.
    There is likewise no dispute that Qualcomm sufficiently
    disclosed to TransPower any relevant concealed hazards before
    Sandoval’s injury. The relevant hazard was the presence of live
    circuits in the switchgear room. Sharghi — TransPower’s
    president — admitted that he was well aware which circuits
    were live and which were not. Sharghi’s knowledge might
    indicate that the live condition of the circuits was obvious or
    reasonably ascertainable for TransPower, in which case that
    condition was not actually “concealed.” Or it might indicate that
    Beckelman accurately described the partially live condition of
    the equipment when he communicated with Sharghi before
    14
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    leaving the switchgear room, in which case Qualcomm’s
    disclosure was sufficient. Either way, the evidence establishes
    that Qualcomm effectively delegated to TransPower any tort
    duties Qualcomm otherwise would have owed Sandoval
    respecting these live circuits under Kinsman.4
    What Sandoval posits is that because the power-down
    process was entirely Qualcomm’s doing, Qualcomm bore
    responsibility for all power-related hazards. In other words,
    since Qualcomm didn’t delegate to TransPower the performance
    of the power-down process, it couldn’t have delegated its tort
    duties respecting the power-down process. If Sandoval had been
    injured during Qualcomm’s performance of the power-down
    process, we might agree that no transfer of control or tort duties
    from Qualcomm to the contractor had yet occurred. (See
    Tverberg I, supra, 49 Cal.4th at p. 528 [the hirer delegates
    responsibility for performing the work safely “when” the hirer
    delegates control].) But timing matters, and Sandoval’s injury
    occurred later. Once Qualcomm turned over control of the
    worksite, any tort duties Qualcomm had with respect to the
    safety of that site presumptively became TransPower’s duties.
    (See Horne v. Ahern Rentals, Inc. (2020) 
    50 Cal.App.5th 192
    , 203
    [where hirer performed noncontract work of driving and parking
    4
    By dismissing his premises liability claim, Sandoval in
    fact waived any claim he might have had based on Qualcomm’s
    failure to effectively delegate any landowner duties respecting
    the live circuits. We discuss such duties to provide guidance in
    future cases. Because there was no failure here to disclose
    critical information respecting a concealed hazard, we need not
    resolve whether Qualcomm’s ability to delegate its
    nonlandowner duties respecting that hazard (Sandoval posits
    theories of undertaking and of past practice creating a risk of
    harm) may have also required a Kinsman-type disclosure.
    15
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    forklift and then turned over control, hirer delegated to
    contractor responsibility for determining whether that location
    and positioning of the forklift was safe for conducting the
    contracted work of replacing the forklift’s tires].)
    Qualcomm’s performance of the power-down process
    remains relevant only to the extent it implicates our two
    exceptions to this presumption. As to the first, to the extent that
    Qualcomm’s performance of the power-down process resulted in
    the presence of a preexisting hazard (the live circuits),
    Qualcomm effectively delegated its duties respecting that
    hazard either because it was not concealed or because
    Qualcomm’s disclosure was sufficient. As to the second, we
    consider in the following section whether Qualcomm owed
    Sandoval a duty on account of incomplete delegation, whether
    by virtue of Qualcomm’s performance of the power-down process
    or otherwise.
    C.
    We now consider whether substantial evidence supports
    the jury’s conclusion that Qualcomm owed Sandoval a duty
    under the retained control exception to the ordinary limitations
    on hirer liability for injuries sustained by contract workers. (See
    Webb, supra, 63 Cal.4th at p. 192 [stating standard of review].)
    We conclude that the answer is no.
    1.
    In Hooker, we recognized that hirers do not always fully
    delegate control to their contractors. We concluded that in some
    such “retained control” situations, notwithstanding Privette’s
    presumption to the contrary, the hirer must owe a duty of care
    to the contract workers. (Hooker, 
    supra,
     27 Cal.4th at pp. 211–
    212; see SeaBright, 
    supra,
     
    52 Cal.4th 590
     at pp. 599–600.)
    16
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    The plaintiff in such cases must establish not only that the
    hirer retained control over the contracted work, but also that the
    hirer actually exercised that retained control in a manner that
    affirmatively contributed to the contract worker’s injury.
    (Hooker, supra, 27 Cal.4th at p. 202.) Because Hooker’s
    application has produced significant confusion, we dwell at some
    length here on the meaning of Hooker’s three key concepts:
    retained control, actual exercise, and affirmative contribution.
    A hirer “retains control” where it retains a sufficient
    degree of authority over the manner of performance of the work
    entrusted to the contractor. This concept simply incorporates
    the Restatements’ theory of retained control:        Against a
    backdrop of no hirer duty respecting the manner of performance
    of work entrusted to a contractor, the Restatements provide that
    a hirer who retains control over any part of that work owes
    others a duty of reasonable care respecting the hirer’s exercise
    of that retained control. (See Rest.2d Torts, § 414; Hooker,
    
    supra,
     27 Cal.4th at pp. 201–202 [incorporating Rest.2d Torts,
    § 414]; Rest.3d Torts, Liability for Physical and Emotional
    Harm, § 56 [modern version of Rest.2d Torts, § 414].) So
    “retained control” refers specifically to a hirer’s authority over
    work entrusted to the contractor, i.e., work the contractor has
    agreed to perform. For simplicity we will often call this the
    “contracted work” — irrespective of whether it’s set out in a
    written contract or arises from an informal agreement. A hirer’s
    authority over noncontract work — although potentially giving
    rise to other tort duties — thus does not give rise to a retained
    control duty unless it has the effect of creating authority over
    17
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    the contracted work.5 (See Rest.3d Torts, supra, § 56, com. b,
    pp. 390–392.) Furthermore, a hirer’s authority over the
    contracted work amounts to retained control only if the hirer’s
    exercise of that authority would sufficiently limit the
    contractor’s freedom to perform the contracted work in the
    contractor’s own manner. (Id., com. c, p. 392; see, e.g., Grahn v.
    Tosco Corp. (1997) 
    58 Cal.App.4th 1373
    , 1395 [“the ‘control’
    necessary to give rise to a duty of care under Restatement
    [Second of Torts] section 414” is “not simply general control over
    the premises,” but control “over the methods of the work or the
    manner in which the contractor’s employees perform the
    operative details of their tasks”], disapproved on other grounds
    in Hooker, supra, 27 Cal.4th at p. 214 and Camargo, 
    supra,
     25
    Cal.4th at p. 1245; McDonald v. Shell Oil Co. (1955) 
    44 Cal.2d 785
    , 790 [“the [hirer] may retain a broad general power of
    supervision and control as to the results of the work so as to
    insure satisfactory performance of the independent contract —
    5
    Some line-drawing questions will of course arise when it
    comes to how generally or specifically to understand the scope
    of the contracted work.          Consistent with the Privette
    presumption that the hirer delegates the responsibility to
    perform the contracted work safely, we presume that scope
    encompasses at minimum the taking of reasonable precautions
    during the performance of the work.
    We also acknowledge that it will not always be easy to
    distinguish between (a) contracted work over which the hirer
    retained control, and (b) noncontract work in which the
    contractor had some involvement but which the hirer controlled
    to such a great extent that we would not say it was entrusted to
    the contractor. For instance, it might be difficult to say whether
    the hirer in Regalado v. Callaghan (2016) 
    3 Cal.App.5th 582
    (Regalado) was performing the noncontract work of obtaining
    permits, or retaining control over the permitting aspect of the
    contracted work. (See 
    id.
     at pp. 587–588.)
    18
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    including the right to inspect [citation], the right to stop the
    work [citation], the right to make suggestions or
    recommendations as to details of the work [citation], the right
    to prescribe alterations or deviations in the work [citation] —
    without” incurring a retained control duty].)
    The parties dispute whether Qualcomm retained control
    “over safety conditions at the worksite,” a phrase we used in
    Hooker. (Hooker, supra, 27 Cal.4th at pp. 202, 215.) But the
    pivotal question here is whether the hirer retained a sufficient
    degree of control over the manner of performing the contracted
    work. Hooker itself gave us no reason to draw a meaningful
    distinction between control over the manner of performing the
    contracted work and control “over safety conditions at the
    worksite,” because the hirer was alleged to have retained control
    over the manner of performing the contracted work by retaining
    the right to take corrective safety measures during the
    contractor’s performance of the work entrusted to it. (Id. at p.
    202.) And in any event, one might question whether it’s even
    possible to retain control over safety conditions without also
    retaining some control over the manner of performing the
    contracted work. To the extent that “control over safety
    conditions” (ibid.) might be taken to mean control over the
    presence of preexisting hazards, though, as Sandoval argues by
    implication, the phrase is unhelpful here. A hirer might be
    responsible for the presence of a hazard and even convey an
    expectation that the contractor perform its work without
    eliminating that hazard altogether, and yet leave the contractor
    ample freedom to accommodate that hazard effectively in
    whatever manner the contractor sees fit. (See, e.g., Padilla,
    supra, 166 Cal.App.4th at p. 671 [hirer did not retain control by
    expecting contractor to work in presence of pressurized water
    19
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    pipe where hirer disclosed the pipe’s condition and contractor
    had ample freedom to perform its work in its own
    manner without contacting the pressurized pipe].) In such
    instance, the hirer does not necessarily retain a sufficient degree
    of control over the contractor’s manner of performing the
    contracted work to constitute “retained control.”
    What we decided in Hooker was that, even if hirers may
    owe unrelated third parties a retained control duty based on
    retained control alone, hirers owe the contract workers a
    retained control duty only with something more. Contract
    workers must prove that the hirer both retained control and
    actually exercised that retained control in such a way as to
    affirmatively contribute to the injury. (Hooker, 
    supra,
     27
    Cal.4th at p. 202.)
    A hirer “actually exercise[s]” its retained control over the
    contracted work when it involves itself in the contracted work
    “such that the contractor is not entirely free to do the work in
    the contractor’s own manner.” (Rest.3d Torts, supra, § 56, com.
    c, p. 392; see Thompson v. Jess (Utah 1999) 
    979 P.2d 322
    , 327;
    Hooker, 
    supra,
     27 Cal.4th at p. 209 [endorsing an approach
    similar to Thompson’s].) In other words, the hirer must exert
    some influence over the manner in which the contracted work is
    performed. Unlike “retained control,” which is satisfied where
    the hirer retains merely the right to become so involved, “actual
    exercise” requires that the hirer in fact involve itself, such as
    through direction, participation, or induced reliance.6 (See, e.g.,
    6
    Although “active participation” may be one way of exerting
    influence over the manner of performance (Tverberg v. Fillner
    Construction, Inc. (2012) 
    202 Cal.App.4th 1439
    , 1446 (Tverberg
    20
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    Kinney v. CSB Construction, Inc. (2001) 
    87 Cal.App.4th 28
    , 39
    (Kinney) [a hirer’s “mere failure to exercise a power to compel
    the [contractor] to adopt safer procedures does not, without
    more, violate any duty owed to the [contract worker]”]; Hooker,
    
    supra,
     27 Cal.4th at p. 209 [quoting and agreeing with this
    passage in Kinney].)
    “Affirmative contribution” means that the hirer’s exercise
    of retained control contributes to the injury in a way that isn’t
    merely derivative of the contractor’s contribution to the injury.
    (See Hooker, 
    supra,
     27 Cal.4th at p. 212 [hirer liability based on
    affirmative contribution does not merely “ ‘ “derive[] from the
    ‘act or omission’ of the hired contractor” ’ ”].) Where the
    contractor’s conduct is the immediate cause of injury, the
    affirmative contribution requirement can be satisfied only if the
    hirer in some respect induced — not just failed to prevent — the
    contractor’s injury-causing conduct. (See, e.g., Kinney, supra, 87
    Cal.App.4th at p. 36 [requiring that the hirer “induc[e] [the
    contractor’s] injurious action or inaction through actual
    direction, reliance on the hirer, or otherwise”]; Hooker, at p. 211
    [quoting and agreeing with this passage in Kinney]; McKown v.
    Wal-Mart Stores, Inc. (2002) 
    27 Cal.4th 219
    , 225 [finding
    affirmative contribution where hirer “requested” that contractor
    use faulty equipment, thus at least in part inducing the
    II); see Khosh, supra, 4 Cal.App.5th at p. 718; Alvarez v. Seaside
    Transportation Services LLC (2017) 
    13 Cal.App.5th 635
    , 641), it
    is not necessarily the only way. (See, e.g., Ray v. Silverado
    Constructors (2002) 
    98 Cal.App.4th 1120
    , 1133–1134 (Ray)
    [finding Hooker test satisfied where hirer had contractually
    prohibited contractor from unilaterally undertaking a crucial
    safety measure but was not actively participating in the
    contracted work at the time of the injury].)
    21
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    contractor’s decision to use it].) It is not enough for the hirer’s
    exercise of control to incidentally give the hirer the opportunity
    to prevent the contractor’s injury-causing conduct. (See Hooker,
    at p. 214 [finding no affirmative contribution where the onsite
    hirer had the authority and opportunity to stop the contractor
    from allowing traffic across the overpass, but did not induce the
    contractor to allow such traffic — the hirer merely “permitted”
    the traffic].)
    A hirer’s conduct also satisfies the affirmative
    contribution requirement where the hirer’s exercise of retained
    control contributes to the injury independently of the
    contractor’s contribution (if any) to the injury. (See, e.g., Hooker,
    at p. 212, fn. 3 [observing that hirer liability would be
    appropriate where “the hirer promises to undertake a particular
    safety measure, then . . . negligent[ly] fail[s] to do so”]; Ray,
    supra, 98 Cal.App.4th at pp. 1133–1134 [finding Hooker liability
    where hirer prohibited contractor from erecting road barricade
    that might have prevented injury].)
    The critical factor here is the relationship between the
    hirer’s conduct and the contractor’s conduct, not whether the
    hirer’s conduct, assessed in isolation, can be described as
    “affirmative conduct.” (Madden v. Summit View, Inc. (2008) 
    165 Cal.App.4th 1267
    , 1276.) Importantly, neither “actual exercise”
    nor “affirmative contribution” requires that the hirer’s
    negligence (if any) consist of an affirmative act. The hirer’s
    negligence may take the form of any act, course of conduct, or
    failure to take a reasonable precaution that is within the scope
    of its duty under Hooker. (See Rest.3d Torts, supra, § 3, com. c,
    pp. 29–30; Hooker, 
    supra,
     27 Cal.4th at p. 212, fn. 3 [noting that
    a hirer may be liable based on failing to undertake a promised
    safety measure]; Ray, supra, 98 Cal.App.4th at pp. 1133–1134
    22
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    [finding triable issue on affirmative contribution where hirer
    retained exclusive authority over road barricades and failed to
    erect barricade around fallen debris that contractor was trying
    to clear when injury occurred].)
    Contrary to the Court of Appeal’s reasoning (Sandoval,
    supra, 28 Cal.App.5th at p. 417; see also Regalado, supra, 3
    Cal.App.5th at pp. 594–595), affirmative contribution is a
    different sort of inquiry than substantial factor causation. For
    instance, a fact finder might reasonably conclude that a hirer’s
    negligent hiring of the contractor was a substantial factor in
    bringing about a contract worker’s injury, and yet negligent
    hiring is not affirmative contribution because the hirer’s
    liability is essentially derivative of the contractor’s conduct.
    (See Camargo, 
    supra,
     25 Cal.4th at p. 1238 [applying the
    Privette doctrine to reject negligent hiring as a theory under
    which contract workers may sue hirers]; Hooker, 
    supra,
     27
    Cal.4th at pp. 211–212 [contrasting affirmative contribution
    with Camargo].) Conversely, affirmative contribution does not
    itself require that the hirer’s contribution to the injury be
    substantial.
    If a plaintiff proves that the hirer actually exercised
    retained control in a way that affirmatively contributed to the
    contract worker’s injury, the plaintiff establishes that the hirer
    owed the contract worker a duty of reasonable care as to that
    exercise of control. (Cf. Rest.3d Torts, supra, § 56, subd. (b).)7
    7
    We emphasize that the test we articulated in Hooker
    establishes only whether the hirer owed a duty to the contract
    worker. (See Kinney, supra, 87 Cal.App.4th at p. 39.) The
    Hooker test does not establish, for instance, whether the hirer’s
    23
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    The Privette doctrine does not bar liability. (See Hooker, 
    supra,
    27 Cal.4th at pp. 211–212.)
    Imposing this duty on the hirer where Hooker’s test is
    satisfied is consistent with the strong policy of delegation that
    undergirds the Privette doctrine. (See SeaBright, 
    supra,
     52
    Cal.4th at p. 596.) A hirer’s mere authority to prevent or correct
    a contractor’s unsafe practices (retained control) does not,
    without more, limit the contractor’s delegated control over the
    work. But to the extent that the hirer exerts influence over the
    contracted work such that the contractor is not entirely free to
    perform the work in the contractor’s own manner (actual
    exercise), the hirer does limit the contractor’s delegated control.
    Still, we impose a duty only where that limitation itself
    contributed to the worker’s injury (affirmative contribution),
    rather than where that limitation incidentally created an
    opportunity for the hirer to prevent the contractor’s injury-
    causing conduct. (See Hooker, 
    supra,
     27 Cal.4th at pp. 211–212;
    Kinsman, 
    supra,
     37 Cal.4th at pp. 671–672 [explaining the
    holdings in Ray, supra, 
    98 Cal.App.4th 1120
     and Austin v.
    Riverside Portland Cement Co. (1955) 
    44 Cal.2d 225
     in terms of
    limited delegation].)
    Imposing a duty on the hirer under these limited
    circumstances also furthers at least three of the major tort law
    goals underlying the policy of delegation we detailed in our past
    cases applying Privette.     First, Hooker’s rule should tend to
    conduct was negligent, whether the hirer’s negligence was a
    substantial factor in causing the injury, or what the comparative
    level of fault may have been between the hirer and the
    contractor. (Contra, Padilla, supra, 166 Cal.App.4th at p. 670.)
    24
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    improve worksite safety, because it generally discourages hirer
    involvement in contracted work. This is preferable because we
    presume the contractor is best situated to prevent contract
    worker injury given its relative proximity to the work, superior
    expertise and resources, ability to internalize costs, and
    relationship with the workers. (See Hooker, 
    supra,
     27 Cal.4th
    at p. 213; Rest.3d Torts, supra, § 57, com. c, p. 392.) At the same
    time, the rule incentivizes the hirer to use reasonable care when
    the hirer does get involved. (See Hooker, at p. 213.) Second, the
    rule distributes liability equitably as between the hirer and the
    contractor. Where the hirer’s contribution to an injury is merely
    derivative of the contractor’s, it seems unfair to subject the hirer
    to tort liability while workers’ compensation shields the
    contractor — not so where the hirer induces or independently
    contributes to the injury. (See Hooker, at pp. 204, 210–214;
    Toland, 
    supra,
     18 Cal.4th at p. 267; Privette, 
    supra,
     5 Cal.4th at
    p. 701; see also Rest.3d Torts, § 57, com. c, p. 392.) Finally,
    Hooker’s rule tends to strike an appropriate balance between
    victim compensation and socially undesirable hirer burdens,
    avoiding a tort scheme that might lead hirers to impose
    inappropriate safety requirements (see Rest.3d Torts, § 56, com.
    b, pp. 390–392) or avoid assigning dangerous jobs to those with
    the necessary expertise (see Privette, at p. 700).
    2.
    In this case, substantial evidence does not support the
    conclusion that Qualcomm both retained control over some part
    of TransPower’s work and actually exercised that control in a
    manner that affirmatively contributed to Sandoval’s injury.
    Sandoval’s arguments implicate four distinct theories regarding
    how the evidence establishes these elements. Two of these
    theories fall short of establishing retained control. The third
    25
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    fails for lack of an actual exercise of retained control. And the
    fourth lacks any showing of affirmative contribution. We
    address each in turn.
    Contrary to Sandoval’s primary argument, Qualcomm did
    not owe him a retained control duty respecting the power-down
    process itself. Qualcomm’s control over the power-down process
    was not “retained control” over contracted work, because the
    power-down process was not within the scope of work Qualcomm
    had entrusted to TransPower. True: Qualcomm directed
    TransPower to observe the power-down process. And it asked
    TransPower to confirm that TransPower was satisfied with
    Qualcomm’s performance of the power-down process.
    Qualcomm nonetheless stopped short of offering — and
    TransPower never agreed — that TransPower take
    responsibility for actually performing the power-down process.
    Nor is it enough here that the power-down process was a
    necessary precondition for TransPower’s work, or that both the
    power-down process and TransPower’s work were essential
    components of a single larger job. Instead, Qualcomm’s
    performance of the power-down process implicates a retained
    control duty only to the extent that performance actually
    resulted in retained control over the work Qualcomm did
    entrust to TransPower: the inspection of the main cogen
    circuit.8
    8
    As we determined above, Qualcomm ceased performing
    the power-down process and turned over control of the worksite
    well before Sandoval’s injury. This case does not present, and
    thus we do not address, the issue of a hirer performing
    noncontract work and the contractor performing contracted
    work at the same time. (See, e.g., Tverberg II, supra, 202
    26
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    Although Qualcomm’s performance of the power-down
    process arguably limited TransPower’s own freedom to power
    down additional circuits during its inspection, Sandoval’s
    Hooker claim on this basis still fails to establish that Qualcomm
    retained control. To wit: On the evidence here, Qualcomm did
    not retain control over the inspection of the main cogen circuit
    merely by keeping certain other circuits live. Qualcomm’s
    creation of this condition at the worksite imposed too little a
    degree of control over TransPower’s manner of performing the
    inspection. Even if Qualcomm could be said to have conveyed
    an expectation that TransPower perform its work in the
    presence of live circuits, TransPower was aware of and had
    ample freedom within the scope of its entrusted work to
    accommodate the presence of the live circuits effectively in its
    own manner, particularly since they were safely covered by
    bolted-on protective panels and not relevant to TransPower’s
    inspection. Qualcomm did not retain control over the inspection
    merely by declining to shut down these circuits or to give
    TransPower the authority to do so. (See Padilla, supra, 166
    Cal.App.4th at p. 671 [finding that hirer did not retain control
    by expecting contractor to work in presence of pressurized water
    pipe where hirer disclosed the pipe’s condition and contractor
    had ample freedom to perform its work in its own
    manner without contacting the pressurized pipe].) It is not
    enough to say that the presence of live circuits pertained to
    “safety conditions at the worksite.” Under the circumstances
    here, Qualcomm’s control over what was and what was not
    Cal.App.4th at pp. 1442–1443 [hirer (through another
    subcontractor) performing bollard hole work at same time
    plaintiff contractor performed canopy construction work].)
    27
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    powered down did not constitute retained control over the
    contracted work.
    Qualcomm may have had authority — by virtue of
    performing the power-down process or otherwise — to require
    specific precautions during the inspection, but even if so,
    Qualcomm did not “actually exercise” that authority. Even
    assuming that Qualcomm retained control9 by retaining the
    authority to require or provide such precautions — e.g.,
    supervision, a personal warning for Sandoval, arc flash
    protection suits, barricades, and/or additional warning
    signage — TransPower remained entirely free to implement (or
    not) any of these precautions in its own manner, issues over
    which Qualcomm exerted no influence. Although Sandoval
    argues that Qualcomm’s performance of the power-down process
    gave rise to a “duty” on Qualcomm’s part to take these
    precautions, he does not argue — nor is there any indication in
    the evidence — that Qualcomm’s performance of the power-
    down process induced TransPower’s failure to take any of these
    precautions itself.    Likewise, that Qualcomm may have
    previously supervised TransPower’s work does not establish, in
    this case, that Qualcomm induced TransPower’s reliance on
    Qualcomm supervision. Sharghi’s uncontradicted testimony
    established that the reason TransPower did not request or wait
    for Qualcomm’s supervision was that Sharghi felt “in charge,”
    “knew what [he was] doing,” and didn’t “need” a monitor. That
    Qualcomm’s employees may have been trained to provide
    9
    Given this assumption, we decline to resolve whether the
    doctrines of waiver or invited error preclude Qualcomm from
    contesting that it retained control over at least some parts of the
    inspection.
    28
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    personal warnings to everyone in the room, or that Qualcomm’s
    managers and experts may have considered such warnings
    “critical,” does not establish that Qualcomm induced
    TransPower’s reliance on Qualcomm to provide them.
    (Sandoval, supra, 28 Cal.App.5th at p. 418.) Substantial
    evidence does not support the conclusion that Qualcomm
    actually exercised its retained control with regard to any of
    these precautions.
    Qualcomm did take one critical precaution, though
    Sandoval contends it was insufficient: Qualcomm left the
    bolted-on protective covers over all of the live circuits. But even
    if Qualcomm could be said to have retained and actually
    exercised control over the inspection by implementing this
    precaution, there is no evidence that Qualcomm thereby
    “affirmatively contributed” to Sandoval’s injury. Qualcomm’s
    decision to leave bolted-on protective covers in place certainly
    did not induce TransPower’s decision to open them. Nor does
    the evidence suggest that Qualcomm otherwise induced that
    decision by, for instance, misrepresenting to TransPower the
    live condition of the GF-5 circuit. Qualcomm merely failed to
    prevent TransPower from opening the back GF-5 panel.
    Substantial evidence thus does not support the conclusion that
    Qualcomm affirmatively contributed to Sandoval’s injury
    through any exercise of control over the bolted-on protective
    panels.
    In this situation, Qualcomm owed Sandoval no injury-
    prevention tort duty. By turning over control of the worksite,
    Qualcomm presumptively delegated to TransPower any
    preexisting duties Qualcomm otherwise owed Sandoval. As
    noted above, this case does not fall within the concealed hazards
    exception to Privette’s general bar to hirer liability. Nor does
    29
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    any substantial evidence support application of the retained
    control exception. Qualcomm is therefore entitled to judgment
    notwithstanding the verdict.
    D.
    Complex tort law concepts like the retained control
    exception to the Privette doctrine ultimately get explained to
    juries by way of standardized pattern jury instructions. This
    case raised the question of whether the CACI No. 1009B pattern
    jury instruction adequately instructs juries on the necessary
    elements of a Hooker claim. It does not.
    The pattern version of CACI No. 1009B provides: “[Name
    of plaintiff] claims that [he/she/nonbinary pronoun] was harmed
    by an unsafe condition while employed by [name of plaintiff’s
    employer] and working on [name of defendant]’s property. To
    establish this claim, [name of plaintiff] must prove all of the
    following: [¶] 1. That [name of defendant] [owned/leased/
    occupied/controlled] the property; [¶] 2. That [name of
    defendant] retained control over safety conditions at the
    worksite; [¶] 3. That [name of defendant] negligently exercised
    [his/her/nonbinary pronoun/its] retained control over safety
    conditions by [specify alleged negligent acts or omissions]; [¶] 4.
    That [name of plaintiff] was harmed; and [¶] 5. That [name of
    defendant]’s negligent exercise of [his/her/nonbinary pronoun/
    its] retained control over safety conditions was a substantial
    factor in causing [name of plaintiff]’s harm.”10
    10
    The trial court in this case gave a modified version of the
    CACI No. 1009B instruction as follows: “Martin Sandoval
    claims that he was harmed by an unsafe condition while
    employed by ROS Electrical and working on Qualcomm’s
    30
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    We observe at the outset that the pattern instruction
    improperly mixes the Privette exceptions we recognized in
    Kinsman and Hooker. It does so by including as an element of
    the Hooker theory that the defendant owned or controlled the
    property on which the incident occurred.      Although the
    concealed hazards exception we elucidated in Kinsman applied
    only to landowner-hirers, no such limit governs the retained
    control exception we recognized in Hooker.
    To establish a duty under Hooker, a plaintiff must
    establish (1) that the hirer retained control over the manner of
    performance of some part of the work entrusted to the
    contractor; and (2) that the hirer actually exercised its retained
    control over that work in a way that affirmatively contributed
    to the plaintiff’s injury. The CACI instruction need not replicate
    these exact words, but its instructions must be consistent with
    the meaning of these terms as we have clarified them in this
    opinion. Whether the hirer “retained control over safety
    conditions at the worksite” (CACI No. 1009B) does not properly
    capture whether the hirer retained control over the manner of
    performance of some part of the work entrusted to the
    contractor. Whether the hirer “negligently exercised [its]
    retained control over safety conditions” (ibid.) does not properly
    capture whether the hirer actually exercised its retained
    property. To establish this claim, Martin Sandoval must prove
    all of the following: [¶] 1. That Qualcomm owned the property;
    [¶] 2. That Qualcomm retained control over safety conditions at
    the worksite; [¶] 3. That Qualcomm negligently exercised its
    retained control over safety conditions concerning the main co-
    gen cabinet inspection; [¶] 4. That Martin Sandoval was
    harmed; and [¶] 5. That Qualcomm’s negligent exercise of its
    retained control over safety conditions was a substantial factor
    in causing Martin Sandoval’s harm.”
    31
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    control. And whether the hirer’s “negligent exercise of [its]
    retained control over safety conditions was a substantial factor
    in causing [plaintiff]’s harm” (ibid.) does not properly capture
    whether the hirer’s exercise of retained control affirmatively
    contributed to the plaintiff’s injury.11 The Judicial Council and
    its Advisory Committee on Civil Jury Instructions should
    update this instruction with suitable language consistent with
    this opinion.
    III.
    The plaintiff sustained atrocious injuries that could have
    been prevented. But a rule subjecting Qualcomm to tort liability
    merely for failing to prevent those injuries could easily lead to
    more, rather than fewer, injuries in future cases. For instance,
    making the hirer liable under the circumstances presented here
    might incentivize hirers to impose and enforce requirements on
    their contractors that — owing to the hirer’s more limited
    expertise and experience — actually impede the contractor’s
    ability to do the job safely. Or it might discourage hirers from
    engaging more expert contractors at all.
    We retain here the balance struck in our past decisions
    recognizing a rule that hirers who fully and effectively delegate
    work to a contractor owe no tort duty to that contractor’s
    workers. The same rule also provides that hirers may be liable
    for a failure to use reasonable care when they withhold critical
    information or actually exercise retained control in a way that
    affirmatively contributes to the injury. Applying this rule here,
    11
    We leave it to the Judicial Council to determine how to
    convey the distinct negligence and causation elements of the
    cause of action, once it has revised the duty element in
    accordance with this opinion.
    32
    SANDOVAL v. QUALCOMM INCORPORATED
    Opinion of the Court by Cuéllar, J.
    we conclude that Qualcomm owed Sandoval no tort duty. We
    reverse the judgment of the Court of Appeal and remand with
    instructions to remand to the trial court to enter judgment for
    Qualcomm notwithstanding the verdict.
    CUÉLLAR, J.
    We Concur:
    CANTIL-SAKAUYE, C. J.
    CORRIGAN, J.
    LIU, J.
    KRUGER, J.
    JENKINS, J.
    FEUER, J.*
    _______________________
    *     Associate Justice of the Court of Appeal, Second Appellate
    District, Division Seven, assigned by the Chief Justice pursuant
    to article VI, section 6 of the California Constitution.
    33
    See next page for addresses and telephone numbers for counsel who
    argued in Supreme Court.
    Name of Opinion Sandoval v. Qualcomm Incorporated
    __________________________________________________________________
    Procedural Posture (see XX below)
    Original Appeal
    Original Proceeding
    Review Granted (published) XX 
    28 Cal.App.5th 381
    Review Granted (unpublished)
    Rehearing Granted
    __________________________________________________________________
    Opinion No. S252796
    Date Filed: September 9, 2021
    __________________________________________________________________
    Court: Superior
    County: San Diego
    Judge: Joan Marie Lewis
    __________________________________________________________________
    Counsel:
    Thon Beck Vanni Callahan & Powell, Daniel P. Powell, Michael P.
    O’Connor; Esner, Chang & Boyer and Stuart B. Esner for Plaintiff and
    Appellant.
    Alan Charles Dell’Ario for Consumer Attorneys of California as Amicus
    Curaie on behalf of Plaintiff and Appellant.
    Horvitz & Levy, Stephen E. Norris, Jason R. Litt, Joshua C. McDaniel;
    Wingert Grebing Brubaker & Juskie, Alan K. Brubaker and Colin H.
    Walshok for Defendant and Appellant.
    California Appellate Law Group, Katy Graham, Greg Wolff; U.S.
    Chamber Litigation Center and Janet Galeria for the Chamber of
    Commerce of the United States, the American Property Casualty
    Insurance Association and the Civil Justice Association of California as
    Amici Curiae on behalf of Defendant and Appellant.
    Lewis Brisbois Bisgaard & Smith, Lann G. McIntyre and Andrew D.
    Bluth for Western States Petroleum Association as Amicus Curiae on
    behalf of Defendant and Appellant.
    June Babiracki Barlow and Neil Kalin for California Association of
    Realtors as Amicus Curiae on behalf of Defendant and Appellant.
    Counsel who argued in Supreme Court (not intended for
    publication with opinion):
    Joshua C. McDaniel
    Horvitz & Levy LLP
    3601 W. Olive Ave., 8th Floor
    Burbank, CA 91505
    (818) 995-0800
    Stuart B. Esner
    Esner, Chang & Boyer
    234 E. Colorado Blvd., Suite 975
    Pasadena, CA 91101
    (626) 535-9860
    Daniel P. Powell
    Thon Beck Vanni Callahan & Powell
    1100 E. Green St.
    Pasadena, CA 91106
    (626) 795-8333