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Guide · 6 min read · Published · Updated

Workers’ Comp for California Police & Peace Officers: §4850, Presumptions & Ratings

How California workers’ comp works for police and peace officers: the §4850 full-salary year, the presumption family, the §4663(e) apportionment shield, the lower violent-act psych standard, and engine-computed ratings at occupational group 490.

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Peace officers run on the same special rulebook as firefighters — the salary benefit, the presumptions, the top-of-schedule occupational group — plus one rule that matters uniquely often in police work: the lower psych standard for violent events. Here’s the whole stack, with ratings computed by the engine.

The §4850 year

Qualifying peace officers — city police, deputy sheriffs, and others — don’t get ordinary TD. Labor Code §4850 pays up to one year of full salary, tax-free, in its place, per qualifying injury (sworn CHP officers get a parallel benefit under §4800.5). It is the most valuable wage benefit in the comp system.

The presumptions — and the apportionment shield

For qualifying officers the Labor Code presumes several conditions industrial: heart trouble, hernia, and pneumonia under the §3212 family, cancer after exposure to a known carcinogen (§3212.1), and PTSD (§3212.15). The employer must disprove causation, the presumptions extend past retirement for a service-measured period, and §4663(e) takes causation apportionment off the table for all of these except PTSD — no degenerative-condition discount.

The violent-act psych standard

Ordinary psychiatric claims must clear the §3208.3 predominant-cause gate — more than all other causes combined. But when the injury results from a violent act, the standard drops to substantial cause (35–40%) — a distinction that decides real police cases, from shootings to fatal collisions worked on scene. What a compensable psych claim pays, GAF by GAF, is on the stress-claim page.

The group-490 premium

The schedule assigns police officers, deputies, and most other peace officers to group 490 (probation officers are 390) — variant I for essentially every duty injury. Engine-computed at the 2026 maximum, age 37–41:

Back · 12% WPI (DRE III territory)
100% (15.03.01.00 - 12 - [1.4]17 - 490I - 23 - 23) = 23% PD · $26,245
Lumbar fusion · 23% WPI
100% (15.03.01.00 - 23 - [1.4]32 - 490I - 41 - 41) = 41% PD · $60,320
Knee, shoulder, or hearing · 10% WPI each
490I → 20% PD · $21,895 apiece — multiple parts combine on the CVC

The duty-belt back claim is the signature police cumulative trauma — years of twenty extra pounds on the hips — and it has its own presumption: for city and county police, sheriff’s deputies, and CHP and UC peace officers with five years of full-time service who must wear a duty belt, §3213.2 presumes lower-back impairment industrial, and §4663(e) covers it too. CT dates run on §5412 clocks, not the last shift worked.

The retirement interplay

Serious police claims run the comp case and an industrial disability retirement in parallel, and the medical evidence feeds both. Audit the P&S report’s numbers before either settles — the decoder verifies any rating string against the schedule’s tables in seconds. The full money framework is in what comp pays. Estimates for informational use; not legal advice.

FAQ

What is Labor Code 4850 for police officers?
Qualifying peace officers — city police and deputy sheriffs among them — receive up to one year of full salary, tax-free, instead of ordinary temporary disability while a work injury keeps them off duty (sworn CHP officers get a parallel benefit under §4800.5). Against TD’s two-thirds cap, it is routinely worth tens of thousands of dollars per injury.
What conditions are presumed work-related for peace officers?
The Labor Code presumes several conditions industrial for qualifying peace officers: heart trouble, hernia, and pneumonia under the §3212 family, cancer after carcinogen exposure (§3212.1), and PTSD (§3212.15, added by SB 542). The employer carries the burden of disproving work-causation, the presumption extends for a period after retirement, and §4663(e) bars causation apportionment on all of them except PTSD.
How do police injuries rate in California?
At the top of the schedule — group 490 draws variant I for the classic duty injuries. Engine-computed at the 2026 maximum: a 12% WPI back injury rates 23% PD ($26,245), a lumbar fusion at 23% WPI rates 41% ($60,320), and a 10% WPI knee, shoulder, or hearing loss each rate 20% ($21,895).

About this guide. Rating and dollar figures here are computed with — or checked against — RateString’s rating engine, which reproduces the State’s own published worked examples (see the proof). Where the guide relies on a statute or regulation, it cites it in the text. Descriptive information, not legal advice.