Cal/OSHA

Serious Injury Reporting - Cal/OSHA

This talk follows California Title 8 rules

Updated 2026-09-29

In this bundle Jobsite Fundamentals & Compliance

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Under federal OSHA, a work-related hospitalization, amputation, or loss of an eye is reported within 24 hours. In California the limit for all of them is 8 hours — the same as a death — and the list of what counts is longer. This Cal/OSHA Serious Injury Reporting Toolbox Talk covers the California rule in Title 8, Section 342, what makes an injury "serious" under Section 330(h), and what the crew has to do in the first minutes so the company can meet a deadline that starts running earlier than most people think.

Where the boundary of this talk sits#

This talk covers the employer's duty to report serious injuries, illnesses, and deaths to Cal/OSHA, and the crew's part in making it possible. Internal injury reporting, near misses, and the emergency response itself belong to their own talks.

The anchor#

Here is the distinction that carries this whole talk: California's 8-hour clock does not start when the paperwork is ready or when a doctor confirms the injury — it starts when the employer knows, or with diligent inquiry would have known — so the report is a phone call made the same shift, and "we were waiting to see if he'd be admitted" is exactly how an employer misses it; the crew's job is to make sure the supervisor knows at once, because in California a serious injury the office hears about late is a report that is already late.

What counts as "serious" in California#

Section 330(h) defines a serious injury or illness as any injury or illness occurring in a place of employment or in connection with any employment that:

  • requires inpatient hospitalization for other than medical observation or diagnostic testing;
  • causes an amputation;
  • causes the loss of an eye; or
  • causes any serious degree of permanent disfigurement.

Deaths are reported under the same rule. Cal/OSHA's own guidance notes that hospitalization counts regardless of length of time. The definition does not include injuries or deaths from an accident on a public street or highway — unless the accident occurred in a construction zone. That last part matters for road crews: a work-zone crash is reportable.

"Permanent disfigurement" is the category federal reporting does not have. A severe burn, a deep laceration that will scar, or a crushed hand that will not look the same again can be reportable in California even if the worker is treated and released the same day. The regulation does not define the term further, so when in doubt, the supervisor calls.

Eight hours, and when the clock starts#

Section 342(a) says every employer must report immediately to the Division of Occupational Safety and Health — Cal/OSHA — any serious injury or illness, or death, of an employee occurring in a place of employment or in connection with any employment. It then defines "immediately": as soon as practically possible, but not longer than 8 hours after the employer knows or with diligent inquiry would have known of the death or serious injury or illness. Only if the employer can demonstrate exigent circumstances — the burden is on the employer — may the report be made up to 24 hours after the incident.

Two phrases carry the rule. "As soon as practically possible" means 8 hours is the outer limit, not the goal. And "with diligent inquiry would have known" means an employer cannot avoid the deadline by not asking. If a worker was taken away in an ambulance at 10 a.m., the company is expected to find out what happened to him — not wait for a call from the family at dinner.

How the report is made#

Under Section 342(a) and Labor Code Section 6409.1(b), the report is made by telephone or through an online mechanism Cal/OSHA sets up for that purpose; until that mechanism is available, the report may also be made by email. Cal/OSHA's reporting page encourages employers to report by telephone and lists the numbers, available 24 hours a day, 7 days a week.

Section 342(c) lists what the report should include when it is available: the time and date of the accident; the employer's name, address, and phone number; the name and job title or badge number of the person reporting; the address of the accident site; a contact person at the site; the name and address of each injured employee; the nature of the injury; where the injured were taken; other law enforcement agencies present; and a description of the accident and whether the scene or the equipment involved was altered.

This report to Cal/OSHA is in addition to any other report the law requires. Under Labor Code Section 6409.1(b), an employer who fails to make it may be assessed a civil penalty of not less than $5,000.

California versus federal#

The federal rule, 29 CFR 1904.39, requires a fatality to be reported within 8 hours and an in-patient hospitalization, amputation, or loss of an eye within 24 hours. California uses 8 hours for all of them, and adds serious permanent disfigurement. Both systems cover motor vehicle accidents in construction work zones. On a California job, the California rule governs the report to Cal/OSHA.

What the crew does in the first minutes#

The report is the employer's duty, but it depends on what the crew does first:

  • Take care of the injured worker — call for emergency help and give first aid. The report never comes before care.
  • Tell the supervisor at once — by radio or phone, not at the end of the shift.
  • Leave the scene alone as far as safety allows — the report asks whether the scene or equipment was altered. Move things only to protect people.
  • Note the basics — time, exact location, who was involved, who saw it, and where the injured worker was taken.
  • Don't guess at "serious" — if someone went to the hospital, lost part of a finger, hurt an eye, or has a burn or wound that may scar, the supervisor needs to know now.

Where the duty sits#

8 CCR 342 requires the report, sets the 8-hour limit and the 24-hour exigent-circumstances exception, and lists the information. 8 CCR 330(h) defines serious injury or illness. Labor Code 6409.1(b) requires the report by telephone or the online mechanism and sets the minimum $5,000 civil penalty. For contrast, 29 CFR 1904.39 is the federal rule.

What can go wrong?#

  • The injured worker is admitted overnight, but the office waits until morning "to get the full story."
  • A worker loses the tip of a finger and is treated and released; nobody reports it because "he wasn't hospitalized."
  • A severe burn that will scar is treated as a first-aid case.
  • The crew moves the equipment and cleans up before anyone takes a photo.
  • The foreman finds out at the end of the shift that someone left in an ambulance at noon.

How do we manage this properly?#

  • Care first, then call — injured worker first, supervisor immediately after.
  • Know the four triggers — hospitalization, amputation, loss of an eye, permanent disfigurement, plus any death.
  • Report by phone — to Cal/OSHA, as soon as practically possible, never later than 8 hours.
  • Follow the injured worker — find out whether they were admitted; don't wait to be told.
  • Protect the scene — alter it only to protect people, and record what was changed.
  • Post the reporting chain — who the crew calls, and who calls Cal/OSHA.

Before you start#

Confirm who on this site the crew calls after an injury, and who makes the Cal/OSHA report. Make sure that person has the Cal/OSHA reporting number and the site address. Check that everyone knows the four serious-injury triggers.

Talk it over#

  • If someone on this crew got hurt right now, who would you call first, and who second?
  • Would you know whether an injury counts as "serious" in California?
  • Where is the phone number for reporting to Cal/OSHA?

The bottom line#

In California, every serious injury, illness, or death is reported to Cal/OSHA as soon as practically possible and never more than 8 hours after the employer knows or should have known. Serious means inpatient hospitalization, amputation, loss of an eye, or serious permanent disfigurement. Take care of the worker, tell the supervisor at once, protect the scene, and let the report go out by phone the same shift.

Frequently asked questions about Cal/OSHA serious injury reporting#

Do we have to report if the worker was treated and released?

It depends on the injury. An amputation, loss of an eye, or serious permanent disfigurement is reportable under Section 330(h) even without a hospital admission. Treatment and release with none of those does not meet the definition.

Download the Cal/OSHA serious injury reporting toolbox talk PDF#

Download this Cal/OSHA Serious Injury Reporting Toolbox Talk as a printable PDF in English and Spanish, and post the reporting chain next to it before anyone needs it.

Related toolbox talks#

Sources#

Written by FieldSafetyTalk's safety professional — a CSP, ASP, CHST and OSHA Authorized Outreach Trainer with 14+ years of international construction safety experience across federal, heavy civil, and industrial projects.

Hazards covered

all hazards
By Mustafa Tok, CSP, ASP, CHST

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