Opinion
Plaintiffs Jesus Hernandez and his wife Mary Hernandez 1 аppeal a judgment on their third amended complaint against defendants Carde Pacific Corporation (Carde) and Badger Construction Equipment Company (Badger) for damages for personal injury arising from Employee’s on-the-job injury on the premises of his employer National Steel and Shipbuilding Company (NASSCO). Plaintiffs contend the court erred in reducing their noneconomic damages awards by 55 percent, representing the percentage of fault attributed to employer NASSCO. Plaintiffs also contend the court erred in determining defendants’ liability for their noneconomic damages to be several rather than joint and several. We affirm the portions of the judgment challenged by plaintiffs.
Intervener NASSCO appeals the portion of the judgment declaring Carde was required to be named as an additional insured under NASSCO’s general liability policy. Seeking reversal of that part of the judgment, NASSCO contends it named Carde as an additional insured only because of the mistaken belief—induced and fostered by Carde—that NASSCO was obligated to do so. We affirm the portion of the judgment challenged by NASSCO.
Defendant Carde appeals the portion of the judgment declaring NASSCO was not required to indemnify Carde for Garde’s liability to plaintiffs. Carde *1798 contends NASSCO was contractually obligated to indemnify Carde despite Garde’s active negligence. We reverse the portion of the judgment challenged by Carde.
Defendant Badger appeals the portions of the judgment finding Badger liable to plaintiffs for negligence and declaring NASSCO’s recovery of workers’ compensation benefits paid to Employee under the federal Long-shore and Harbor Workers’ Compensation Act (Longshore Act) (33 U.S.C. § 901 et seq.) were not to be reduced by the percentage of fault attributed tо NASSCO. Badger attacks the negligence finding as lacking substantial evidentiary support. Badger also contends the court should have reduced NASSCO’s recovery by NASSCO’s proportionate fault. We affirm the portions of the judgment challenged by Badger.
I
Introduction
Employee suffered economic and noneconomic damages arising from on-the-job injuries incurred in a crane accident on NASSCO’s land. Wife suffered loss of consortium. NASSCO paid Employee workers’ compensation benefits under the Longshore Act. The Longshore Act immunized employer NASSCO from suit by Employee and Wife.
In this action Employee and Wife sought and recovered damages from defendants crane lessor Carde and crane manufacturer Badger. In accord with Civil Code 2 section 1431.2, the court reduced plaintiffs’ noneconomic damages awards against defendants by NASSCO’s percentage of fault. 3 The court also concluded the liability of defendants Carde and Badger for plaintiffs’ noneconomic damages was not joint but only several.
*1799 NASSCO sought and recovered from Carde and Badger the amount of Longshore Act workers’ compensation benefits paid to Employee. In adjudicating Badger’s request for declaratory relief, the court declined to reduce NASSCO’s recovery by the percentage of NASSCO’s fault.
NASSCO and Carde also sought declaratory relief. In adjudicating those requests, the court concluded the amended crane rental contract between NASSCO and Carde required NASSCO to name Carde as an additional insured under NASSCO’s liability policy. However, since the jury found Carde was actively negligent the court concluded NASSCO was not contractually obligated to indemnify Carde for Garde’s liability to plaintiffs.
All parties appeal. We reverse the portion of the judgment declaring NASSCO was not obligated to indemnify Carde. We affirm the remainder of the judgment.
II
Facts
Carde sold and leased construction equipment including mobile hydraulic cranes. In 1981 Carde bought a crane manufactured by Badger. Although Badger offered an “anti-two-blocking safety device” (ATBD) as an option on cranes, the crane bought by Carde did not have an ATBD. Badger furnished with the crane an operator’s manual and a safety manual.
In October 1988 Badger made audio-visual ATBD’s standard equipment on all its newly manufactured cranes.
NASSCO built and repaired ships at its 100-acre shipyard. In 1989 NASSCO owned at least 100 cranes.
In April 1989 a NASSCO crane broke down. NASSCO called Carde about renting a replacement crane. Carde owned about 30 cranes. On April 20, 1989, NASSCO entered into a written agreement with Carde (the Bare Rental Agreement) 4 to rent the ATBD-less crane Carde had bought new from Badger in 1981. 5 Carde did not order the ATBD option because Carde believed ATBD’s to be undesirable, useless and unreliable.
*1800 At the time the Bare Rental Agreement was executed, Carde told NASSCO that Carde would require a certificate of insurance before delivering the crane. Carde sent NASSCO a document entitled “Insurance Requirements” requiring that Carde be named as an additional insured under NASSCO’s general liability and property damage policies. NASSCO obtained a certificate naming Carde as an additional insured under NASSCO’s general liability and property damage policies with Aetna Insurance Company. Upon receipt of the certificate of insurance, Carde delivered a crane to NASSCO. 6
In May 1989—after NASSCO changed insurance companies—a new certificate of insurance was issued showing NASSCO’s insurer as Lloyds of London and naming Carde as an additional insured. The Lloyds policy contained a $100,000 self-insured retention (dеductible). The new insurance certificate did not mention the deductible and Carde was not otherwise informed of the deductible. Upon receiving the new insurance certificate, Carde delivered the Badger crane to NASSCO. Neither Badger nor Carde had retrofitted the crane with an ATBD.
Employee was a crane operator at NASSCO for more than eight years. On June 5, 1989, while working as a crane rigger giving direction signals to NASSCO’s crane operator, Employee was injured on NASSCO’s premises in an on-the-job accident involving the ATBD-less Badger crane bought by *1801 Carde in 1981 and leased to NASSCO. 7 The operator’s manual and safety manual provided by Badger were in the crane’s cab at the time of the accident.
NASSCO paid Employee $148,943.94 in workers’ compensation benefits under the Longshore Act.
Before Employee’s injury NASSCO did not object to carrying Carde as an additional insured on NASSCO’s policies. For more than a year after the accident NASSCO permitted its insurer to treat Carde as an additional insured. Later NASSCO claimed it was never obligated to insure Carde.
Ill
Superior Court Proceedings
A
Pleadings
Plaintiffs sued Carde and Badger for damages sustained by Employee in the crane accident and Wife’s lost consortium. Plaintiffs’ third amended complaint alleged causes of action for strict products liability, negligence, breach of warranty and loss of consortium. Plaintiffs asserted defendants were liable for failing to equip the crane with an ATBD and for failing to warn of the danger of operating the crane without an ATBD.
NASSCO as Employee’s subrogee filed a complaint in intervention to recover from defendants Carde and Badger the amount of workers’ compensation benefits paid to Employee under the Longshore Act. Later NASSCO amended its complaint in intervention to seek a declaration it did not have a duty to indemnify Cаrde under the Bare Rental Agreement.
Carde cross-complained against NASSCO for declarations that the Bare Rental Agreement required NASSCO to provide Carde with liability insurance, Carde was an additional insured under NASSCO’s general liability policy, and NASSCO was required to pay the $100,000 deductible.
Badger cross-complained against NASSCO for comparative indemnity and declaratory relief. Badger effectively alleged NASSCO’s recovery of *1802 workers’ compensation benefits should be reduced by NASSCO’s percentage of comparative fault. NASSCO successfully demurred to Badger’s cross-complaint insofar as it involved Longshore Act benefits paid to Employee on the ground NASSCO’s recovery of such benefits was not subject to reduction for NASSCO’s comparative negligence.
B
Trial
In October 1991 plaintiffs’ case and NASSCO’s complaint in intervention were tried to a jury. Upon stipulation that all workers’ compensation benefits paid by NASSCO to Employee were based on the federal Longshore Act, the court dismissed Badger’s cross-complaint against NASSCO. 8 Later the court granted Garde’s motion for nonsuit on plaintiffs’ strict liability claims. At the close of evidence, plaintiffs and NASSCO asked the court to rule that section 1431.2 was not intended to limit a third party defendant’s exposure where, as here, the jury found a lawsuit-immunized Longshore Act employer primarily responsible for an accident. Plaintiffs also asked the court to rule the federal supremacy cause prohibited applying section 1431.2. The court rejected those requests.
In November 1991 by special verdict the jury found: The crane did not have any design defect; defendants Carde and Badger were both negligent; the negligence of each defendant was a legal cause of the accident; Garde’s negligenсe was active; both Employee and NASSCO were negligent with such negligence a cause of the injury; and without reduction for Employee’s negligence the damages were $350,000 economic for Employee, $500,000 noneconomic for Employee, and $250,000 noneconomic for Wife. The jury also apportioned the parties’ negligence: Employee 5 percent, NASSCO 55 percent, Carde 20 percent, and Badger 20 percent.
NASSCO and Carde submitted a joint stipulation of facts and separate statements of additional facts bearing on NASSCO’s amended complaint in intervention and Garde’s cross-complaint. The court granted Garde’s request for declaratory relief, concluding NASSCO was obligated to name Carde as an additional insured and NASSCO was responsible for the $100,000 deductible. However, the court also concluded NASSCO was not obligated to indemnify Carde since Carde had been found to be actively negligent.
*1803 C
Judgment
In July 1992 the court entered judgment on the parties’ various pleadings.
1
Plaintiffs’ Case
The court adopted the jury’s findings that Employee sustained $350,000 economic damages and $500,000 noneconomic damages while Wife sustained $250,000 noneconomic damages. The court also adopted the jury’s apportionment of fault: Employee 5 percent; NASSCO 55 percent; Carde 20 percent; and Badger 20 percent. Applying section 1431.2, the court found each defendant (Carde and Badger) was liable only severally—and not jointly—for its own 20 percent proportionate share of plaintiffs’ noneconomic damages. Further, the court reduced Employee’s award of economic damages from Carde and Badger by the $148,943.94 NASSCO paid to Employee (or on his behalf) under the Longshore Act. The court also reduced Employee’s econоmic damages by his 5 percent fault.
Thus, the court concluded: Employee was entitled to recover $183,556.06 economic damages jointly and severally from Carde and Badger. Employee was entitled to recover $100,000 noneconomic damages separately from Carde and from Badger. Wife was entitled to recover $50,000 noneconomic damages separately from Carde and Badger.
2
NASSCO’s Complaint in Intervention
The court concluded NASSCO was entitled to recover from Carde and Badger jointly and severally the sum of $148,943.94, representing workers’ compensation benefits NASSCO paid for Employee under the Longshore Act. The court also concluded since Carde was actively negligent NASSCO was not required to indemnify Carde for the amounts awarded to plaintiffs from Carde.
3
Carde’s Cross-complaint
The court declared NASSCO was obligated to name Carde as an additional insured on NASSCO’s liability insurance. The court also declared *1804 NASSCO was responsible for any policy deductible in effect on the date of Employee’s injury.
4
Badger’s Cross-complaint
As noted, the court dismissed Badger’s cross-complaint against NASSCO.
IV
Discussion
A
Plaintiffs’ Appeal
Plaintiffs contend the superior court should not have applied state law (section 1431.2) to reduce their noneconomic damages recoverable from defendants Carde and Badger by the percentage of employer NASSCO’s fault while simultaneously applying federal law to NASSCO’s workers’ compensation lien. Plaintiffs also contend the court erred in applying section 1431.2 to Wife’s claim for loss of consortium. We conclude the court correctly applied section 1431.2 to reduce plaintiffs’ noneconomic damages including Wife’s loss of consortium.
1
The Longshore Act immunized NASSCO from suit by plaintiffs. (33 U.S.C. § 905(a).) Thus, application of section 1431.2 to limit the liability of defendants Carde and Badger for plaintiffs’ noneсonomic damages to 20 percent each resulted in plaintiffs being unable to recover a portion of their noneconomic damages. Section 1431.2 intended that precise result.
(DaFonte
v.
Up-Right, Inc.
(1992)
In
DaFonte
v.
Up-Right, Inc., supra,
Seeking $475,000 noneconomic damages against defendants Carde and Badger jointly and severally, plaintiffs contend the holding in
DaFonte
v.
Up-Right, Inc., supra,
2
Citing
Edmonds
v.
Compagnie Generale Transatl.
(1979)
Plaintiffs’ reliance on
Edmonds
v.
Compagnie General Transatl., supra,
Plaintiffs also cite
Dodge
v.
Mitsui Shintaku Ginko K.K. Tokyo
(9th Cir. 1975)
Plaintiffs further contend under the federal supremacy clause the federal Longshore Act overrides California doctrines of comparative fault. Under California comparative fault law, an employer’s recovery of state workers’ compensation benefits paid is reduced when the employer is negligent.
(DaFonte
v.
Up-Right, Inc., supra,
In analyzing section 1431.2, the California Supreme Court has stated:
“In every case,
it [the statute] limits the joint liability of every ‘defendant’ to economic damages, and it shields every ‘defendant’ from any share of noneconomic damages beyond that attributable to his or her own comparative fault. The statute contains no hint that a ‘defendant’ escapes joint liability only for noneconomic damages attributable to fellow ‘defendants’ while remaining jointly liable for noneconomic damage caused by others.”
(DaFonte
v.
Up-Right, Inc., supra,
Plaintiffs’ reliance on the preemption doctrine is unavailing because application of section 1431.2 here does not present an actual conflict with any substantive federal right created or guaranteed by Congress. (Cf.
English
v.
General Electric Co.
(1990)
Plaintiffs misread
Schreefel
v.
Okuly, supra,
Finally, plaintiffs have not identified any injustice arising from applying section 1431.2 to limit their noneconomic damages under circumstances where federal law immunized NASSCO from suit and granted NASSCO the right to recover the amount of workers’ compensation benefits paid to *1810 Employee under the Longshore Act without reduction for its comparative fault. 16 Consistent with federal law, Employee’s award of economic damages against defendants Carde and Badger jointly and severally was not reduced by NASSCO’s percentage of fault—though properly reduced by the amount of workers’ compensation benefits paid by NASSCO. Although NASSCO’s negligence would have been considered under state comparative fault law, Employee’s net recovery of economic damages from defendants would have been the same. 17 Hence, the varying treatment under federal and state law of the effect of NASSCO’s negligence on recoupment of workers’ compensation benefits did not ultimately affect Employee’s economic damages award. Instead, NASSCO’s negligence impacted only Employee’s noneconomic recovery, but such result arose from section 1431.2 independently of whether federal or state law governed NASSCO’s recovery of workers’ compensation benefits. Thus, there was no impermissible inconsistency or inequity in applying federal law to employer NASSCO’s recoupment of workers’ compensation benefits while applying state law to Employee’s recovery from third party tortfeasors Carde and Badger.
In sum, the superior court correctly held section 1431.2 applied to reduce plaintiffs’ recovery of noneconomic damages from third party defendants Carde and Badger in proportion to employer NASSCO’s fault.
3
Seeking recovery by Wife of her full $250,000 noneconomic damages jointly and severally from defendants Carde and Badger, plaintiffs contend by its own terms section 1431.2 did not apply to Wife’s cause of action for loss of consortium since such claim was assertedly not “based on principles of comparative fault.” Plaintiffs contend Wife’s negligence was not compared to other parties’ negligence and her recovery was not otherwise linked to any principle of comparative fault. According to plaintiffs, Wife’s cause of action for loss of consortium was personal to her, not derivative from Employee’s claim, and not subject to imputation of other parties’ negligence.
(Rodriguez
v.
Bethlehem Steel Corp.
(1974) 12 Cal.3d
*1811
382 [
Section 1431.2 does not impute the negligence of any other party to Wife. Neither does the statute’s reference to actions “based upon principles of comparative fault” require comparison of the plaintiffs negligence to that of other parties. Instead, the statute manifestly focuses on the comparative fault of multiple tortfeasors. Wife’s cause of action for loss of consortium was “based upon principles of comparative fault” as it involved “independently acting tortfeasors who have some fault to compare.” (Cf.
Rashtian
v.
BRAC-BH, Inc.
(1992)
Further, section 1431.2, subdivision (b)(2), expressly includes loss of consortium in its definition of “non-economic damages.” The Supreme Court has noted section 1431.2 “carefully” defines the “important distinction” between economic and noneconomic damages.
(DaFonte
v.
Up-Right, Inc., supra,
Application of section 1431.2 to limit Wife’s damages for loss of consortium was consistent with and indeed compelled by the statutory language. The superior court correctly concluded Wife’s recovery of noneconomic damages for loss of consortium was limited to the proportionate fault of defendants Carde and Badger.
4
In sum, the superior court correctly applied California law to reduce plaintiffs’ recovery of noneconomic damages by the percentages of fault *1812 attributed to Employee and NASSCO, thus leaving third party defendants Badger and Carde liable for such damages only in proportion to their individual fault. As such, the portions of the judgment applying section 1431.2 to reduce plaintiffs’ noneconomic damages must be affirmed.
B
NASSCO’s Appeal
NASSCO seeks reversal of the portion of the judgment declaring it was required to name Carde as an additional insured under NASSCO’s general liability insurance policy and was responsible for any policy deductible in effect on the date of Employee’s injury. NASSCO contends the superior court should have concluded NASSCO named Carde as an additional insured based only upon a mistaken belief fostered by Carde that NASSCO was obligated to do so. According to NASSCO, we should direct the superior court to enter a declaration NASSCO was not required to name Carde as an additional insured. We conclude the court reasonably determined NASSCO was obligated to name Carde as an additional insured and to pay any deductible.
1
After Carde and NASSCO submitted a joint stipulation and separate statements of fact, the court concluded NASSCO was required to name Carde as an additional insured on NASSCO’s insurance policies. The court expressly found: The Bare Rental Agreement did not obligate NASSCO to provide insurance for Carde but simply required only that NASSCO provide insurance for itself for injuries arising from use of the crane; the Insurance Requirements sheet proposed modifying the Bare Rental Agreement to require NASSCO to name Carde as an additional insured on NASSCO’s general liability and physical damage insurance policies; Carde refused to release the crane from its yard without the insurance certificate specified in the Insurance Requirements sheet; NASSCO complied with the modification terms and obtained the insurance certificate; no additional consideration was necessary to create an enforceable agreement because issuance of the certificate completed implementation of the modification; after April 20, 1989, Carde was an additional insured under NASSCO’s policies; NASSCO knowingly agreed to name Carde an additional insured; no term of the modification was unclear or hidden from NASSCO; NASSCO’s mistake was in assuming the Bare Rental Agreement required the certificate of insurance naming Carde as an additional insured; despite opportunity NASSCO’s authorized agent did not read the Bare Rental Agreement before obtaining *1813 the insurance certificate; and before Employee’s injury NASSCO did not object to carrying Carde as an additional insured on NASSCO’s policies.
2
NASSCO concedes the superior court correctly concluded that although the Bare Rental Agreement by itself did not obligate NASSCO to name Carde as an additional insured, the Insurance Requirements sheet was a proposed modification to the Bare Rental Agreement and no additional consideration was necessary because the modification was implemented when NASSCO obtained the Aetna certificate of insurance. However, NASSCO contends the court erred in concluding NASSCO consented to such modification, asserting such apparent consent was based on a mistake of fact, to wit, that the Bare Rental Agreement required NASSCO to provide a certificate naming Carde as an additional insured. NASSCO asserts Carde knew or had reason to know of such mistake and in fact fostered such mistake by transmitting its Insurance Requirements sheet to NASSCO. Attacking the court’s conclusion NASSCO was not entitled to relief since NASSCO had the opportunity to read the Bare Rental Agreement before obtaining the certificate of insurance, NASSCO asserts on this record its failure to read the Bare Rental Agreement did not constitute a “neglect of a legal duty” under section 1577. 18 NASSCO also asserts Carde took advantage of NASSCO’s immediate need for the crane. NASSCO further asserts Carde induced NASSCO’s actions by falsely representing the Bare Rental Agreement required the certificate. According to NASSCO, granting its requested relief would not adversely affect Carde since Carde assertedly did not alter its own insurance coverage or otherwise detrimentally change its position in reliance on the issuance of a certificate of insurance naming Carde as an additional insured on NASSCO’s рolicy. However, at trial NASSCO acknowledged whether NASSCO’s providing Carde with certificates of insurance reflected NASSCO’s consent to modification of the Bare *1814 Rental Agreement constituted a factual question for the court. NASSCO improperly seeks reweighing on appeal of the conflicting evidence presented at trial. Substantial evidence supports the court’s factual finding favoring Carde. Thus, on this record the court reasonably denied NASSCO relief from the consequences of its mistaken assumption the Bare Rental Agreement itself required the certificate of insurance naming Carde as an additional insured.
3
Section 1636 requires the court to interpret a contract to give effect to the parties’ intentions at the time of contracting. “The conduct of the parties after execution of the contract and before any controversy has arisen as to its effect affords the most reliable evidence of the parties’ intentions. [Citations.]”
(Kennecott Corp.
v.
Union Oil Co.
(1987)
NASSCO and Carde executed the Bare Rental Agreement providing NASSCO would hold Carde “free and harmless” from all liability “in any way caused by” NASSCO “occasioned by the use [of the crane]”; NASSCO would “furnish and pay for Public Liability insurance with limits of *1815 $300,000, and Property Damage insurance with limits of $500,000 to protect [NASSCO] against any and all such liability and risk of loss”; such insurance “shall be in companies acceptable” to Carde and NASSCO “shall furnish certificates of such insurance in form acceptable” to Carde; and if for any reason NASSCO “does not obtain any such insurance, the failure to do so shall constitute an agreement by [NASSCO] to indemnify [Carde] against any and all loss which such insurance would otherwise have covered.” At the time the Bare Rental Agreement was executed, Carde told NASSCO that Carde would require a certificate of insurance before delivering the crane. Carde had a practice of requiring insurance certificates for all crane rentals. To be acceptable to Carde, an insurance certificate provided by an equipment renter had to identify Carde as an additional insured for general liability and property damage and could not have any general liability deductible. The purpose of those requirements was to ensure any equipment renter’s insurer would protect Carde from all liability.
Carde provided NASSCO with an Insurance Requirements sheet indicating that a certificate “acceptable to Carde” meant a certificate naming Carde as an additional insured under NASSCO’s general liability and property damages policies. Carde made it clear to NASSCO the crane would not leave its yard until receipt from NASSCO of the certificate of insurance specified in tiie Insurance Requirements sheet. Such requirement was not unclear or hidden from NASSCO. Without objection NASSCO obtained the required certificate naming Carde as an additional insured under NASSCO’s Aetna policies. Despite opportunity NASSCO’s authorized agent did not read the Bare Rental Agreement before obtaining the insurance certificate. Upon receipt of the certificate of insurance, Carde delivered a crane to NASSCO. Later NASSCO chаnged insurance companies and without objection provided Carde with a new certificate of insurance naming Carde as an additional insured under NASSCO’s new Lloyds policy. Although the Lloyds policy contained a $100,000 deductible, the new insurance certificate did not mention the deductible and Carde was not otherwise informed of the deductible. 20 Upon receiving the new Lloyds insurance certificate, Carde delivered the Badger crane to NASSCO. Before Employee’s injury NASSCO did not object to carrying Carde as an additional insured on NASSCO’s policies. For more than a year after Employee’s accident NASSCO permitted its insurer to treat Carde as an additional insured. Later NASSCO claimed it was never obligated to insure Carde.
As noted, NASSCO contends it provided the insurance certificates based upon its mistake of fact that the Bare Rental Agreement required it to
*1816
name Carde as an additional insured. However, generally . . one who assents to a contract cannot avoid its terms on the ground he failed to read it before signing it. [Citations.]”
(Izzi
v.
Mesquite Country Club
(1986)
In renting NASSCO a crane, Carde changed its position in direct reliance on NASSCO’s providing certificates of insurance naming Carde as an additional insured based upon NASSCO’s mistaken assumption the Bare Rental Agreement required it to do so. Further, NASSCO’s mistake was not attributable to Carde. Carde customarily required acceptable insurance certificates for all crane rentals. Such insurance certificates, to be acceptable, were required to name Carde as an additional insured so as to ensure the equipment renter’s insurer would protect Carde from all liability. When executing the Bare Rental Agreement, Carde told NASSCO that Carde would require a certificate of insurance before delivering the crane. Carde provided NASSCO with an Insurance Requirements sheet expressly indicating Carde was to be named as an additional insured. Carde told NASSCO the crane would not be released without the required insurance certificate. Such requirement was not unclear or hidden from NASSCO. NASSCO provided Carde with insurance certificates meeting Garde’s requirements. NASSCO’s later conduct before controversy arose reflected its intent the parties’ contract required NASSCO to name Carde as an additional insured. Carde did not know NASSCO would later claim it had not read the contract or that a certificate naming Carde as an additional insured was not required.
On this record the court reasonably rejected NASSCO’s request for relief from mistake and instead concluded that by providing the insurance certificates naming Carde as an additional insured NASSCO accepted the proposed contractual modification contained in the Insurance Requirements sheet. The *1817 court also reasonably concluded NASSCO’s provision of the certificates and later conduct affirming Carde as an addition^ insured constituted a practical construction of the contract’s requirements.
4
Finally, NASSCO contends the court’s conclusion NASSCO was not contractually obligated to indemnify Carde was inconsistent with—and thus precluded—a finding that Carde must be named as an additional insured under NASSCO’s policies. NASSCO asserts the Bare Rental Agreement indicated Garde’s intent in requiring NASSCO to provide insurance was simply to protect Carde in the event NASSCO should be required to indemnify Carde. Thus, according to NASSCO, since NASSCO was not called upon to indemnify Carde, Carde should not be allowed to take “a free ride on NASSCO’s liability policy.” In sum, asserting the issues of insurance and indemnity were “inextricably linked” and the contract’s insurance clauses cannot provide greater protection to Carde than that provided by its indemnity clauses, NASSCO contends the superior court’s assertedly correct conclusion it was not obligated to indemnify Carde compels a conclusion Carde was not entitled to the coverage of NASSCO’s policy absent a duty to indemnify.
As we shall explain, the portion of the judgment declaring NASSCO was not required to indemnify Carde must be reversed. Such reversal undercuts the basis of NASSCO’s contention of fatal inconsistency between the finding NASSCO had no indemnity obligation to Carde and the finding NASSCO must name Carde as an additional insured. Further, in any event, NASSCO’s obligations to provide insurance to Carde and to indemnify Carde were not necessarily coextensive. (Cf.
Dart Transportation Service
v.
Mack Trucks, Inc.
(1970)
5
In sum, on this record the superior court properly found NASSCO’s mistaken assumption the Bare Rental Agreement required a certificate of *1818 insurance naming Carde as an additional insured did not vitiate NASSCO’s consent to the modified agreement because such mistake was attributable not to Carde but instead to NASSCO. Thus, the court correctly concluded NASSCO was required to name Carde as an additional insured and pay any deductible.
The portion of the judgment declaring NASSCO was required to name Carde an additional insured on NASSCO’s liability insurance policy and obligated to pay any policy deductible must be affirmed.
C
Carde’s Appeal
Carde seeks reversal of the portion of the judgment declaring NASSCO was not required to indemnify Carde for Garde’s liability to plaintiffs. Carde asserts the court should have enforced the parties’ intent that NASSCO indemnify Carde for injuries resulting from NASSCO’s use of the crane. We conclude the parties’ agreement obligated NASSCO to indemnify Carde for the portion of the joint and several economic damage award to plaintiffs attributable to NASSCO’s negligence that is ultimately paid by Carde. 21
1
As noted, the Bare Rental Agreement provided: “User [NASSCO] shall hold Owner [Carde] free and harmless from and indemnify and defend Owner against any and all suits, actions, proceedings, claims, demands, liability, costs and chаrges, legal expenses, damages and penalties resulting, or claimed to result, from injury or damage to any and all persons, employees and property in any way caused by User or any person acting for or in behalf of User, occasioned by the use, maintenance, operation, handling, transportation or storage of the equipment during the rental term . . . .” Thus, the contract effectively provided NASSCO would indemnify Carde against any liability resulting from injury to Employee in any way caused by NASSCO and occasioned by use of the crane.
In the superior court, NASSCO contended it was not obligated to indemnify Carde since the jury had found Carde to be actively negligent. Carde *1819 contended NASSCO’s negligence was primarily responsible for the accident; in the Bare Rental Agreement NASSCO agreed to indemnify Carde for injury “in any way caused by” NASSCO “occasioned by the use” of the crane; Employee’s judgment came within such language; and the jury’s finding of Garde’s active negligence did not preclude enforcement of NASSCO’s agreement to indemnify Carde. The court concluded since Carde was actively negligent NASSCO was not required to indemnify Carde for the amounts awarded to plaintiffs from Carde. In denying Garde’s claim for indemnity, the court stated, “I feel precluded by the body of law that is extant now concerning indemnification from finding that there is a proportionate amount due on the indemnification agreement, and it is contrary to my sense of fairness that because a jury found one percent or 56/100ths percent or 20 percent as the case may be of negligence that, which was active on behalf of Carde, that this hold harmless section goes out the window, but I believe that it does. And so I am going to find that NASSCO has no duty to indemnify Carde.”
The superior court essentially considered itself bound by the law emanating from
MacDonald & Kruse, Inc.
v.
San Jose Steel Co.
(1972)
In
MacDonald
v.
Kruse, Inc.
v.
San Jose Steel Co., supra,
2
Although noting the existence of decisions supporting each party’s position, Carde contends the superior court should have enforced NASSCO’s obligation to indemnify Carde for Garde’s liability to plaintiffs arising from NASSCO’s operation of the crane. We agree. Under case law arising after MacDonald & Kruse, Inc. v. San Jose Steel Co., supra, 29 Cal.App.3d 413, the court was not compelled to deny Garde’s indemnity claim. Instead, noting that the classifications identified in MacDonald & Kruse, Inc. are not totally dispositive, those cases have applied well-established general principles of contract interpretation in determining indemnity obligations. Thus, despite an indemnitee’s active negligence those principles may under appropriate circumstances necessitate a proportional indemnity analysis. We conclude the facts here warrant application of such analysis.
3
Although an indemnitee’s active negligence may ordinarily preclude its recovery under a general indemnity agreement, the Supreme Court has cautioned against a strict application of such rule.
(Rossmoor Sanitation, Inc.
v.
Pylon, Inc.
(1975)
In
Morton Thiokol, Inc.
v.
Metal Building Alteration Co.
(1987)
Carde contends the law of indemnity in concurrent negligent cases is unsettled; mechanical application of the rules in
MacDonald & Kruse, Inc.
v.
San Jose Steel Co., supra,
Reasonably read, the contractual indemnity language here did not obligate NASSCO to indemnify Carde for Garde’s own negligence. Neither could Carde reasonably expect to be indemnified for its own negligence. However, reasonably construed, the contractual language obligated NASSCO to indemnify Carde for the portion of Garde’s liability attributable to NASSCO’s fault. Such interpretation is consistent with Garde’s reasonable expectation it would be indemnified for liability arising from the negligence of NASSCO. Thus, we conclude despite its 20 percent active negligence Carde was contractually entitled to indemnification from NASSCO for the portion of plaintiffs’ joint and several economic damage award attributable to NASSCO’s 55 percent negligence that is ultimately paid by Carde.
As a practical matter application here of a proportional indemnity analysis despite Garde’s active negligence is facilitated by the jury’s express findings on the percentage of negligence attributable to each party. Further, in light of such express apportionment of liability, the result here does not import the harm the court sought to avoid in
MacDonald & Kruse, Inc.
v.
San Jose Steel Co., supra,
Finally, we emphasize that our conclusion enforcing the parties’ indemnity agreement is based upon reasonable interpretation of the contract in light of its language, the circumstances of Employee’s injury, and the parties’ intent in accord with
Rossmoor Sanitation, Inc.
v.
Pylon, Inc., supra,
*1823
4
The portion of the judgment providing NASSCO was not required to indemnify Carde for amounts awarded plaintiffs from Carde must be reversed. The amount of NASSCO’s indemnity obligation to Carde may be determined by the superior court.
D
Badger’s Appeal 1
Reduction of NASSCO’s Recovery of Workers’ Compensation Benefits
(a)
NASSCO’s complaint in intervention sought recovery from Carde and Badger of the total workers’ compensation benefits NASSCO paid for Employee under the Longshore Act. Badger’s cross-complaint effectively sought a declaration NASSCO’s recovery of workers’ compensation benefits paid to Employee should be reduced by NASSCO’s percentage of comparative fault. In sustaining NASSCO’s demurrer, the court concluded NASSCO’s recoupment of such benefits was not subject to reduction for NASSCO’s comparative negligence. The court granted NASSCO judgment *1824 on its cross-complaint against Carde and Badger for the entire amount of such benefits.
Badger acknowledges under federal maritime and statutory law an employer which pays benefits to an injured employee under the Longshore Act may recoup the full amount of such benefits in an employee’s third party action without reduction for the employer’s percentage of fault. However, noting under California law an employer’s recovery of benefits paid under the state workers’ compensation scheme is reduced by the employer’s fault percentage of law
(Witt
v.
Jackson, supra,
In
Schreefel
v.
Okuly, supra,
(b)
In
Schreefel
v.
Okuly, supra,
(c)
Finally, citing
Sun Ship, Inc.
v.
Pennsylvania
(1980)
(d)
In sum, we conclude the trial court correctly determined NASSCO was entitled to recoup from Badger (and Carde) the entirety of the Longshore Act benefits paid to Employee without reduction for NASSCO’s comparative fault.
The portions of the judgment awarding NASSCO the full amount of Longshore Act workers’ compensation benefits paid to Employee and dismissing Badger’s cross-complaint against NASSCO must be affirmed.
2
Substantial Evidence Badger Was Liable to Plaintiffs
Contending the record lacked substantial evidence to support a finding it was causally negligent, Badger seeks reversal of the judgment favoring plaintiffs against Badger and entry of judgment in Badger’s favor notwithstanding the verdict. We conclude substantial evidence supported the jury’s finding Badger negligently caused plaintiffs injury.
(a)
Plaintiffs proceeded against Badger on a negligence theory for Badger’s not equipping the crane with an ATBD, not giving adequate warning of the *1827 danger of operating the crane without an ATBD, and not conducting an adequate retrofit campaign after beginning to equip its new cranes with ATBD’s as standard equipment. Plaintiffs also proceeded against Badger on a strict liability theory for design defect and failure to warn. In finding the crane did not have any design defect, the jury rejected plaintiffs’ strict liability claim. However, the jury found Badger negligently injured plaintiffs.
Badger contends on this record—where the jury determined the crane was not defective and evidence established crane owner Carde and crane user NASSCO knew of the hazard of two-blocking and the absence of an ATBD—the trial court erred in concluding Badger was negligent in not informing NASSCO that Badger furnished ATBD’s as standard equipment on later manufactured cranes. Citing
Jiminez
v.
Sears, Roebuck & Co.
(1971)
(b)
Failure to conduct an adequate retrofit campaign may constitute negligence apart from the issue of defective design.
(Lunghi
v.
Clark Equipment Co., supra,
Based upon substantial evidence the jury could properly conclude Badger did not do “everything reasonably within its power to prevent injury” to plaintiffs.
(Balido
v.
Improved Machinery, Inc., supra,
(c)
As noted, the jury’s finding of negligence based upon failure to conduct an adequate retrofit campaign may be reconciled with the jury’s finding there was no design defect in the crane.
(Hasson
v.
Ford Motor Co., supra,
19 Cal.3d at pp. 540-544;
Lunghi
v.
Clark Equipment Co., supra,
*1829 (d)
Citing
Hasson
v.
Ford Motor Co., supra,
Further, Jiminez v. Sears, Roebuck & Co., supra, 4 Cal.3d 379, does not help Badger. Indeed, Badger acknowledges in Jiminez the court noted a plaintiff in a products liability action may proceed on alternative theories of strict tort liability and negligence. (Id. at p. 382.) In Jiminez the appealing defendants contended “. . . in a products liability case the plaintiff in order to recover in strict liability in tort must prove that he was injured by a defect in the product and that the product was defective when it left the hands of the retailer or manufacturer; whereas to recover in negligence the plaintiff must prove the same two elements plus an additional element, namely, that the defect in the product was due to negligence of the defendant.” (Id. at p. 383.) However, in affirming the order granting plaintiff’s motion for new trial, the Supreme Court in Jiminez stated: “Although seemingly it would always be simpler for a plaintiff in a products case to recover under a theory of strict liability in tort where only two of the three elements of the negligence cause of action are necessary of proof, this is not necessarily true, and in some situations it will be to the plaintiff’s advantage to have negligence instructions.” (Ibid.)
Also misplaced is Badger’s reliance on
Montez
v.
Ford Motor Co., supra,
(e)
Finally, Badger seeks to avoid liability for negligence by pointing to evidence suggesting fault lay with Carde for not requesting the optional ATBD offered by Badger despite knowing of the hazards of two-blocking and with NASSCO for not requiring ATBD’s although equipping some of its cranes with such devices while also knowing the hazards of two-blocking. With regard to retrofitting, Badger contends Carde knew ATBD’s had become standard equipment on new Badger cranes and were available but would not have put an ATBD on the crane even if recommended by Badger or requested by NASSCO. Badger further asserts although industry standards adopted after its 1981 crane was manufactured and sold required installation of ATBD’s on that type of crane, such standards did not require retrofitting existing cranes lacking such devices. However, Badger essentially seeks to reargue on appeal the weight of conflicting evidence at trial bearing on the parties’ comparative fault.
Compliance with regulations, directives or trade custom does not necessarily eliminate negligence but instead simply constitutes evidence for
*1831
jury consideration with other facts and circumstances.
(Stevens
v.
Parke, Davis & Co.
(1973)
(f)
In sum, substantial evidence supported a finding Badger’s negligence in not seeking to retrofit the crane was a cause of the injuries to plaintiffs. Thus, the portion of the judgment favoring plaintiffs against Badger must be affirmed.
*1832 Disposition
The portion of the judgment declaring NASSCO was not obligated to indemnify Carde is reversed. The superior court may entertain further proceedings to determine the amount of NASSCO’s indemnity obligation to Carde. The remainder of the judgment is affirmed. Carde is entitled to costs on appeal from plaintiffs and NASSCO. The parties shall otherwise bear their own costs on appeal.
Work, J., and Benke, J., concurred.
The petitions of all appellants for review by the Supreme Court were denied January 5, 1995. Kennard, J., and Baxter, J., were of the opinion that the petitions should be granted.
Notes
For purposes of clarity, we refer tо plaintiff Jesus Hernandez individually as Employee and plaintiff Mary Hernandez individually as Wife.
All statutory references are to the Civil Code unless otherwise specified.
Section 1431.2, subdivision (a)—enacted by Proposition 51 in 1986—provides: “In any action for personal injury, property damage, or wrongful death, based upon principles of comparative fault, the liability of each defendant for non-economic damages shall be several only and shall not be joint. Each defendant shall be liable only for the amount of non-economic damages allocated to that defendant in direct proportion to that defendant’s percentage of fault, and a separate judgment shall be rendered against that defendant for that amount.”
Section 1431.2, subdivision (b)(1), defines “economic damages” to mean “objectively verifiable monetary losses including medical expenses, loss of earnings, burial costs, loss of use of property, cost of repair or replacement, costs of obtaining substitute domestic services, loss of employment and loss of business or employment opportunities.”
Section 1431.2, subdivision (b)(2), defines “non-economic damages” to mean “subjective, non-monetary losses including, but not limited to, pain, suffering, inconvenience, mental suffering, emotional distress, loss of society and companionship, loss of consortium, injury to reputation and humiliation.”
A “bare” rental agreement involves equipment only without providing an operator.
The parties’ Bare Rental Agreement’s provision about indemnity and insurance stated: “Hold Harmless—Insurance—User [NASSCO] shall hold Owner [Carde] free and harmless from and defend and indemnify [Carde] against any and all suits, actions, proceedings, claims, demands, liability, costs and charges, legal expenses, dаmages and penalties resulting, *1800 or claimed to result, from injury or damage to any and all persons, employees and property in any way caused by [NASSCO] or any person acting for or in behalf of [NASSCO], occasioned by the use, maintenance, operation, handling, transportation or storage of the equipment during the rental term (including periods of loading, unloading and transportation), and [NASSCO] shall furnish and pay for Public Liability insurance with limits of $300,000, and Property Damage insurance with limits of $500,000 to protect [NASSCO] against any and all such liability and risk of loss. [NASSCO] shall indemnify and protect [Carde] against, and on demand shall pay to [Carde] in full for, any destruction or loss of or damage to the equipment howsoever caused during the rental term, and [NASSCO] shall furnish and pay for fire and extended coverage insurance to the full insurable value of the equipment for any and all loss or damage to the equipment occasioned by fire, theft, flood, explosion, overturn, accident, acts of God or any other cause that may occur during the rental term. The above insurance shall be in companies acceptable to [Carde] and [NASSCO] shall furnish certificates of such insurance in form acceptable to [Carde] within ten days from date, which shall provide that such insurance may not be cancelled without 30 days notice to [Carde] in advance. If [Carde] shall waive any requirement for any insurance as in this Agreement provided or if [NASSCO] for any reason does not obtain any such insurance, the failure to do so shall constitute an agreement by [NASSCO] to indemnify [Carde] against any and all loss which such insurance would otherwise have covered.”
The parties agreed Carde could supply another brand of crane as a temporary substitute because the Badger crane was not immediately available.
The accident occurred when NASSCO’s crane operator extended the crane’s telescoping boom without lowering the auxiliary load line, thus causing the “headache” ball and hook assembly on the line to contact the boom tip. Such “two-blocking” created excessive stress on the line, causing it to break and drop the headache ball onto Employee.
As noted, the court earlier sustained NASSCO’s demurrer to Badger’s cross-complaint as to benefits paid under the Longshore Act on the ground NASSCO’s recovery of such benefits was not subject to reduction for NASSCO’s comparative negligence.
In
Edmonds
v.
Compagnie Generale Transatl., supra,
The Supreme Court noted that under pre-1972 admiralty law “alongshoreman’s award in a suit against a negligent shipowner would be reduced by that portion of the damages assignable to the longshoreman’s own negligence; but, as a matter of maritime tort law, the shipowner would be responsible to the longshoreman in full for the remainder, even if the stevedore’s negligence contributed to the injuries. This latter rule is in accord with thе common law, which allows an injured party to sue a tortfeasor for the full amount of damages for an indivisible injury that the tortfeasor’s negligence was a substantial factor in causing, even if the concurrent negligence of others contributed to the incident.”
(Edmonds
v.
Compagnie Generate Transatl., supra,
443 U.S. at pp. 259-260 [
In
Weidenfeller
v.
Star & Garter
(1991)
Under California workers’ compensation law, an employer cannot be sued in tort for an employee’s work-related injury. Instead, regardless of fault the employer’s sole liability is for workers’ compensation benefits paid. The employee may sue any other responsible person for damages resulting from the injury. “In appropriate cases, the employer may also recoup workers’ compensation benefits by means of reimbursement from the third party tortfeasor, a lien against the employee’s third party tort recovery, or a credit against the tort judgment for benefits otherwise due to the employee in the future. [Citation.]”
(DaFonte
v.
Up-Right, Inc., supra,
Before Proposition 51 California courts held “. . . an employee’s damage judgment against third parties must be reduced by an amount attributable to the employer’s proportionate share of fault, up to the amount of workers’ compensation benefits paid. If the employer’s share of fault exceeded the benefits paid or owed, its claim for reimbursement, lien, or credit should be denied. If the benefits paid or owed exceeded the employer’s share of fault, the employer should recoup the excess only.”
(DaFonte
v.
Up-Right, Inc., supra,
According to plaintiffs, the court in
Edmonds
v.
Compagnie Generate Transatl., supra,
“[F]ederal demands upon state courts go no further than to require that substantive rights granted litigants under federal law shall not be abridged by the states. . . . H] Just as clear, however, is the premise that as to matters which in no way affect the substantive ‘federal rights’ of the parties, state law will be observed in state courts.”
(Carlson
v.
Pacific Far East Lines, supra,
Although plaintiffs’ lawsuit implicated NASSCO’s federal right to recoup its Longshore Act workers’ compensation benefits, such right was not abridged by applying section 1431.2 to plaintiffs’ noneconomic damages.
We note under state workers’ compensation law NASSCO would also have been immune from suit.
Under California law, an employer’s recovery of benefits is reduced in proportion to the employer’s negligence and the employee’s economic damages are reduced by the same amount. (Cf.
Witt
v.
Jackson
(1961)
Section 1577 provides:
“Mistake of fact is a mistake, not caused by the neglect of legal duty on the part of the person making the mistake, and consisting in:
“1. An unconscious ignorance or forgetfulness of a fact past or present, material to the contract; or
“2. Belief in the present existence of a thing material to the contract, which does not exist, or in the past existence of such a thing, which has not existed.”
To rely on a unilateral mistake of fact, NASSCO had to demonstrate its mistake was not caused by its neglect of a legal duty.
(Architects & Contractors Estimating Service, Inc.
v.
Smith
(1985)
“. . . ‘Parties are far less liable to have been mistaken as to the intention of their contract during the period while harmonious and practical construction reflects that intention, than they are when subsequent differences have impelled them to resort to law, and one of them then seeks a construction at variance with the practical construction they have placed upon it. . . .’”
(Universal Sales Corp.
v.
Cal. etc. Mfg. Co., supra,
A “ ‘. . . practical construction placed upon the contract by the parties themselves . . . renders it immaterial to consider what might be the literal construction of its terms. Parties to a contract have a right to place such an interpretation upon its terms as they see fit, even when such an interpretation is apparently contrary to the ordinary meaning of its provisions.’ [f] This rule of practical construction is predicated on the common sense concept that ‘actions speak louder than words.’ . . . When the parties to a contract perform under it and demonstrate by their conduct that they knew what they were talking about the courts should enforce that intent.” (Crestview Cemetery Assn. v. Dieden, supra, 54 Cal.2d at pp. 753-754.)
Since NASSCO was contractually obligated to indemnify Carde for any failure to obtain the required insurance, NASSCO was liable for the $100,000 deductible.
In contending NASSCO should at “the very least” be required to indemnify Carde for 55 percent of the economic damages Carde is obligated to pay as a result of the accident, Carde implicitly acknowledges the parties’ agreement did not obligate NASSCO to indemnify Carde for Garde’s liability to plaintiffs caused by Garde’s own negligence. In any event, we interpret the contract as not so obligating NASSCO.
“In the contract between MacDonald and San Jose, San Jose expressly promised MacDonald that San Jose would hold MacDonald ‘free and harmless from any . . . liability . . . caused by [San Jose], its agents or employees.’ Since San Jose’s promise did not purport to indemnify MacDonald for liabilities caused other than by San Jose, and since MacDonald’s own negligence, whether active or passive, was also a cause of MacDonald’s liability, MacDonald is not indemnified by San Jose under this provision. [Citation.]”
(MacDonald & Kruse, Inc.
v.
San Jose Steel Co., supra,
Although acknowledging that the court in
Morton Thiokol, Inc.
v.
Metal Building Alteration Co., supra,
In
Schreefel
v.
Okuly, supra,
In
Sun Ship, Inc.
v.
Pennsylvania, supra,
In
Edmonds
v.
Compagnie Generale Transad., supra,
In
Balido
v.
Improved Machinery, Inc., supra,
In
Montez
v.
Ford Motor Co., supra,
The Supreme Court has “set out two alternative tests for identifying a design defect: first, whether the product performed as safely as an ordinary consumer would expect when used in an intended and reasonably foreseeable manner and, second, whether on balance the benefits of the challenged design outweighed the risk of danger inherent in the design.”
{Anderson
v.
Owens-Coming Fiberglas Corp., supra,
Indeed, other crane manufacturers announced new safety features and practices or published retrofit notices.
We note the mere fact the risk of two-blocking may have been obvious to NASSCO, Carde or Employee would not preclude Badger’s liability for negligence.
(Pike
v.
Frank G. Hough Co.
(1970)
In light of our conclusion substantial evidence supported the jury’s finding Badger negligently caused plaintiffs injury by not conducting an adequate retrofitting campaign, we need not reach plaintiffs’ contentions the negligence finding was also proper on the grounds of Badger’s negligently failing to equip the crane with an ATBD, failing to warn of the dangers of operating the crane without an ATBD, not advising plaintiffs that other crane manufacturers provided ATBD’s as standard equipment, and not advising plaintiffs that ATBD’s had become mandatory equipment on new Badger cranes.
