Violation and causation
Counsel must show that the specific Cal-OSHA safety order was violated and that the violation was a proximate cause of the injury, not merely a technical violation unrelated to how the accident occurred.
California Labor Code Employer Injury Claims Involving Cal-OSHA Standards
A California Labor Code employer injury claim involving Cal-OSHA violations often benefits from the negligence per se doctrine, a powerful evidentiary tool that allows a statutory or regulatory violation to establish a presumption of negligence, shifting significant weight in the injured worker's favor once the violation is proven. The published decision in Cortez v. Abich, 51 Cal.4th 285 (2011), is what places significant remodeling work inside Cal-OSHA's coverage in the first place, making this framework available in residential injury cases.
669
Evidence Code section that codifies negligence per se in California
4
Elements that must be proven for the negligence per se presumption to apply
The Negligence Per Se Doctrine in California
Evidence Code section 669 codifies California's negligence per se doctrine, which creates a presumption of negligence when a defendant violates a statute or regulation, the violation proximately caused the injury, the injury resulted from an occurrence the statute was designed to prevent, and the plaintiff was a member of the class the statute was designed to protect. In the context of a residential remodeling injury, following the clarification that significant remodel work is covered by Cal-OSHA rather than exempt as household domestic service, a documented Cal-OSHA safety order violation can trigger this presumption, provided all four elements are satisfied.
Identifying the Specific Applicable Safety Orders
Cal-OSHA maintains detailed safety orders covering fall protection, scaffolding, excavation, and numerous other construction hazards, and the negligence per se analysis requires identifying precisely which safety order applied to the specific task the injured worker was performing at the time of the incident. General allegations that safety standards were violated are far less persuasive, and far less legally effective, than a specific citation to the applicable safety order along with expert testimony establishing exactly how the defendant's conduct failed to meet that standard.
Establishing the Four Negligence Per Se Elements
Type of harm and protected class
The accident must be the type the safety order was designed to prevent, and the injured worker must fall within the class the order was designed to protect. Construction and remodeling safety orders are typically drafted to protect workers performing the task involved, making this element straightforward once the right order is identified.
Rebutting the presumption
Evidence Code section 669 lets a defendant rebut the presumption by showing they acted as a person of ordinary prudence who wanted to comply with the law. A homeowner's claim of unfamiliarity with Cal-OSHA has become harder to sustain since the ruling put owner-builders on notice that significant remodeling is covered.
How Expert Testimony Ties the Framework Together
A construction safety expert translates the specific Cal-OSHA safety order's technical requirements into a clear explanation of what should have been done, what was actually done, and how the gap between the two directly caused the injury.
Theory pleaded
Jury finding
General negligence claim
Jury weighs reasonableness with no presumption of fault
Documented Cal-OSHA violation
Presumption of negligence attaches once four elements are met
Expert links violation to injury
Causation and standard of care become concrete for the jury
Homeowner claims unfamiliarity
Harder rebuttal after owner-builders were put on notice of Cal-OSHA coverage
The case behind this page
The underlying Supreme Court remodeling decision
The ruling that placed significant remodeling work within Cal-OSHA's coverage and opened this framework.
Read the underlying decisionRelated doctrine
Residential employer liability under Labor Code 2750.5
How the homeowner becomes the legal employer the safety orders are enforced against.
How employer status attachesKeep Reading
Related breakdowns from this case and our worker injury practice.
Referring a Cal-OSHA worker injury case?
We take worker injury cases built on safety-order violations and negligence per se as counsel or co-counsel and pay statutory referral fees.
Refer a caseFrequently Asked Questions
What is negligence per se and how does it apply to Cal-OSHA violations?
Negligence per se, under Evidence Code section 669, creates a presumption of negligence when a defendant violates a safety statute or regulation designed to prevent the type of harm that occurred to a person within the protected class, which can apply directly to documented Cal-OSHA safety order violations.
What four elements must be proven to establish negligence per se?
The plaintiff must show the defendant violated a specific statute or regulation, the violation proximately caused the injury, the injury was of the type the regulation was designed to prevent, and the plaintiff belonged to the class of persons the regulation was designed to protect.
Why is identifying the specific Cal-OSHA safety order important?
General claims that safety standards were violated are far less effective than identifying the precise applicable safety order and demonstrating exactly how the defendant's conduct fell short of its specific requirements.