Los Angeles County

Which office hears your case

Five district offices serve Los Angeles County, in practice by ZIP code — where you live or where the injury occurred. The law adds a third option: the county where your attorney’s principal place of business is, if you are represented.

The DWCDWC Division of Workers’ Compensation, part of the Department of Industrial Relations. Administers the system. Information Services Center: 1-800-736-7401. maintains a ZIP code locator, and the Information Services Center is 1-800-736-7401. Where a case can be filed is set by § 5501.5 — and the choice is not yours alone. The law lets the application be filed in the county where you live on the filing date, the county where the injury occurred (or, in cumulative traumaCT — Cumulative trauma Injury from repeated exposure over time. The largest injury category in California and the least claimed. and occupational disease, where the last injurious exposure occurred), or the county where your attorney’s principal place of business is, if you are represented. The law requires your written consent to the selected venue to be filed with the application. (If the attorney’s office is the one chosen, the employer may object and force one of the other two.) The DWC’s ZIP code locator is a practical guide, not the rule.

Five offices, one county. The law names counties, and where a county has more than one office § 5501.5(b) allows the application to be filed at any Appeals Board location in that county — in practice, inside Los Angeles County, the DWC’s ZIP code locator is how a case is normally assigned to Van Nuys rather than Long Beach or Pomona. The options change at the county line. Take a worker who lives in Carson and whose shoulder wore out over years of loading trailers — the last year of it at a warehouse in Ontario, in San Bernardino County: the case can be heard in Los Angeles County, where the worker lives, or in San Bernardino County, where the last injurious exposure was. Either is allowed; trials are in person at whichever office has the case.

A day in court in Los Angeles County. Every office runs two sessions, 8:30 to noon and 1:30 to 5:00, and calls cases in turn — plan on half a day, a full day for a trial. Most conferences are held by video — the link is on your hearing notice — but trials, expedited hearings and walk-throughs are in person. The downtown office screens visitors with metal detectors and x-ray; bring government photo ID to any office. Each office page above has its own parking, food and transit details.

Who works here

By where the jobs are, the U.S. Bureau of Labor Statistics counted an average of 4,592,700 jobs in the county in 2025 — its Los Angeles-Long Beach-Glendale division is Los Angeles County exactly. The six largest groups, plus construction:

Education and health services — more than one job in five — added about 40,000 jobs from 2024 to 2025, while manufacturing lost about 9,000 and construction about 5,000.

What this county’s work does

Los Angeles County is not one economy, and the claims follow the industry.

In 2024, Los Angeles County employers and insurers filed 173,238 first reports of occupational injury — 25.49% of California’s total (DWC, Workers’ Compensation Information System). Those are reports, not lawsuits; most never become an Appeals Board case.

One number

California employers reported 454,100 nonfatal workplace injuries and illnesses in 2024 — all industries, private and public, a rate of 3.3 per 100 full-time equivalent workers (U.S. Bureau of Labor Statistics). California’s cause-of-injury tables are published every two years, not every year.

In the latest set — private industry, 2023 and 2024 combined — 34.4% of the cases serious enough to mean days away from work, a job transfer or restricted duty were “overexertion, repetitive motion, and bodily conditions”: 158,330 of 460,760 (DIR and BLS). That is the single largest category, larger than contact incidents (27.2%) and larger than falls, slips and trips (21.1%).

Not accidents. Bodies wearing out. Many of those are cumulative trauma claims, and they are the ones that go unfiled, because there is no incident and no date. How they work.

Wildfire smoke and fire cleanup

January 2025 put the county’s workers in smoke. Cal/OSHA issued a smoke alert on January 7 as the Palisades Fire affected air quality, warned on January 9 that “several fires are currently impacting air quality throughout Los Angeles County,” and on January 22, during the Hughes Fire, urged employers to protect workers in Los Angeles County.

The rule is 8 CCR § 5141.1. It applies where the current Air Quality Index for fine particles (PM2.5) is 151 or greater and the employer should reasonably expect workers to be exposed. Up to an AQI of 500, the employer must provide respirators and encourage their use; above 500, respirators are required. Closed, filtered buildings and vehicles are exempt, and so is exposure of one hour or less in a shift.

Cleanup has its own standard. In February 2025, DIR said cleanup of fire-damaged sites and debris removal must follow 8 CCR § 5192, the hazardous waste operations standard. If smoke, ash or debris work made you sick, tell the doctor what the work was, where and when. Chemical exposure claims.

Languages

In Los Angeles County, 37.6% of residents five and older speak Spanish at home, 156,737 speak Korean, and 23.4% — nearly one in four — speak English less than “very well” (American Community Survey, 2020–2024). The same survey counts 386,106 Chinese speakers, 216,850 Tagalog speakers and 78,733 Vietnamese speakers. Of the four counties this site covers, Los Angeles has the largest share who speak English less than “very well.”

Two things that are true everywhere in this county

Immigration status does not affect eligibility for California workers’ compensation.

And you are entitled to an interpreter at no cost — at treatment, at medical-legal exams, at depositions, and at hearings. At a hearing, the claims administratorClaims administrator / adjuster The person handling your claim for the insurer or self-insured employer. pays, and if you have no lawyer, the defendant must arrange the interpreter. Your interpreter rights.

Consultas gratis en español. · 한국어 무료 상담.

Free help in Los Angeles County

Information & Assistance officers help injured workers, free, with questions, forms and the steps of a claim; they do not represent you. The Disability Evaluation UnitDEU Disability Evaluation Unit. Produces formal ratings from medical reports. turns a medical report’s findings into a permanent disabilityPD Permanent Disability. Compensation for lasting impairment. A different and much lower weekly rate — 2026 maximum $290/week. rating. DIR lists:

If you are not sure which office is yours, call the DWC Information Services Center: 1-800-736-7401. DIR publishes no I&AI&A Information & Assistance officer. Free help with questions and forms at every district office. Underused. hours, so call before you go.

Cal/OSHA enforces workplace safety; the DWC decides benefits. DIR lists four Cal/OSHA enforcement offices in the county — three of them at WCABWCAB Workers’ Compensation Appeals Board. The court system that decides these cases. 23 district offices statewide. addresses:

DIR’s lookup matches your job site’s city or ZIP code to the office that covers it. Unsafe work and your rights.

The DWC’s free workshops for injured workers run by Zoom at 3 p.m. — the first Friday of each month in English, the third Friday in Spanish. Registration is required.

What to do this week

• Get medical care, and say it happened at work. If the pain built up over months — lifting, reaching, typing, driving — say that too, and name the tasks.
• Tell your employer in writing — a dated text or email — and keep a copy.
• File the DWC-1DWC-1 The claim form. Filing it starts the 90-day presumption and the $10,000 treatment obligation. claim form and keep proof of the date. That date starts the 90-day clock and the employer’s duty to authorize up to $10,000 in treatment while it decides.
• Write down the work, not just the injury: the tasks, the weights, the hours, and when you first connected the pain to the job. If you worked in smoke or fire cleanup, add the dates, the sites, and whether respirators were handed out.
• Ask for an interpreter — Spanish, Korean or any other language — wherever you need one. It costs you nothing.

The first 72 hours, in order.

The deadlines that do not move

For a cumulative trauma claim, the date of injuryDate of injury For a cumulative or occupational disease claim, the law sets it as when you first suffered disability and knew or should have known it was work-related — not when the wear began. Almost every deadline runs off this. is the § 5412 date — when you first had disability and knew, or should have known, that work caused it — and the clocks run from there. Every deadline, counted from your date.