A Thursday afternoon at a Fresno plant, and four questions
At 3:10 p.m. on a Thursday, a shift lead at a 220-employee food-packaging plant in Fresno calls the HR manager. A line worker's hand was caught in a conveyor guard, and the worker has been driven to an urgent care clinic. The lead does not yet know whether the worker will go home, return on restricted duty or be admitted to a hospital.
The HR manager also runs payroll and benefits, and the injury tracker is a spreadsheet with a shared calendar. Within minutes, four questions land on one desk. Does the worker get a claim form today? Is a state report due, and to whom? Does this reach the point where Cal/OSHA must be told? And will the case go on the log?
Each question has its own trigger, its own unit of time and its own recipient. The date the employer learned of the injury matters to all four, yet the rules do not describe that date in the same words.
By the end of this guide you will be able to name each California clock, the primary source behind it, and the point where the rule stops and your own decision begins.
Reference material with citations, not legal advice. You decide recordability and compensability, and you file.
California Employer Injury Reporting Requirements: The Four Clocks
California employer injury reporting requirements sit in the Labor Code, in Title 8 of the California Code of Regulations and in federal recordkeeping rules. One injury can start up to four clocks, depending on its facts. The table puts them side by side before each is explained.
| Clock | Trigger | Unit | Recipient | Source |
|---|---|---|---|---|
| DWC-1 claim form | Notice or knowledge of an injury causing lost time beyond the work shift or medical treatment beyond first aid | One working day | The injured employee | Labor Code §5401 (2025 code) |
| Form 5020 report | The employer obtains knowledge of an occupational injury or illness | Five days (calendar or working not stated) | The insurer, if insured; the Division directly, if self-insured | 8 CCR §14001; Labor Code §6409.1 (2025) |
| Serious injury, illness or death | The employer knows, or with diligent inquiry would have known | Not longer than 8 hours | Cal/OSHA | Title 8 §342 (checked 2026) |
| Log entry (federal text) | Receiving information that a recordable case has occurred | Seven calendar days | The establishment's own 300 Log and 301 | 29 CFR 1904.29(b)(3) (checked 2026) |
DWC-1: the claim form goes to the employee
A California employer must provide the injured employee with the claim form (DWC-1) within one working day of receiving notice or knowledge of an injury that causes lost time beyond the employee's work shift or medical treatment beyond first aid (Labor Code §5401, 2025 code). The recipient is the employee, not a state agency. The unit is working days, not hours or calendar days. The sources we cite do not define a working day, so confirm how to count one with the Division of Workers' Compensation. Our guide to the DWC-1 for employers walks through the form itself.
Form 5020: the employer's report
Under Labor Code §6409.1, a California employer must file a report of each occupational injury or illness (Form 5020) within five days after obtaining knowledge of it (Labor Code §6409.1, 2025). The regulation names the recipient. An insured employer files with its insurer "within five days after such insured employer obtains knowledge of the injury, illness or death," and a self-insured employer files "directly with the Division" within the same five days (8 CCR §14001(d)–(e)). Neither text says whether the five days are calendar or working days.
Anyone searching for the form 5020 five days deadline should treat that unit as an open question. A cautious habit is to calendar the earlier date while you confirm the unit with your claims administrator or the Division of Workers' Compensation. Write down who confirmed what, and when.
Cal/OSHA: serious injury, illness or death
Under Title 8 §342, an employer must report a serious injury or illness, or a death, to Cal/OSHA immediately. The regulation defines that as:
"not longer than 8 hours after the employer knows or with diligent inquiry would have known"
— Cal. Code Regs. tit. 8, §342 (checked 2026)
The unit is hours. The trigger is knowledge, or the knowledge that diligent inquiry would have produced. If the employer can demonstrate exigent circumstances, §342 allows the report "no longer than 24 hours after the incident." Cal/OSHA defines "serious injury or illness" separately, and this guide does not quote that definition, so confirm it with Cal/OSHA before relying on it. Our 8-hour reporting guide covers the report in more detail.
The log: the Cal/OSHA 300 log and the federal rules beside it
California has its own recordkeeping regulation in Title 8; confirm the section with Cal/OSHA. We quote the federal text below because most employers know it best. For a California establishment, read the matching California provision for each point and confirm any difference with Cal/OSHA.
Under federal 29 CFR 1904.29, an employer must enter each recordable case on the OSHA 300 Log and the 301 Incident Report within seven calendar days of receiving information that a recordable injury or illness has occurred (1904.29(b)(3), eCFR, checked 2026). Do not assume the California log deadline is the same. The clock runs from information that a recordable case occurred. Recordability is therefore a decision made before the clock starts.
For the annual summary, federal 29 CFR 1904.32(b)(6) says the 300A must be posted no later than February 1 of the year following the year covered by the records, and kept posted until April 30 (eCFR, checked 2026). A company executive must certify it. That executive must be an owner (sole proprietorship or partnership only), an officer of the corporation, the highest-ranking company official at the establishment, or that official's immediate supervisor (eCFR, checked 2026). Our 300A posting guide covers the run-up to February 1.
Retention and access have their own clocks:
- Retention: under 29 CFR 1904.33, the log, the 300A and the 301 are kept for five years following the end of the calendar year they cover (eCFR, checked 2026). The employer carries that duty.
- Employee access: when an employee, former employee or employee representative asks for the 300 Log, the employer must provide a copy by the end of the next business day, and the first copy is free (eCFR, checked 2026).
- Government access: when an authorized government representative asks for Part 1904 records, copies are due within four business hours (eCFR, checked 2026).
A multi-site employer keeps a separate log for each establishment expected to operate for one year or longer (29 CFR 1904.30(a), checked 2026).
What the rule says, and what you decide
The rules above supply triggers and time limits. They do not supply judgments. Three judgments stay with the employer, and each should be made with the citation open in front of the person deciding.
First aid or beyond. The DWC-1 trigger turns on "medical treatment beyond first aid." Federal recordkeeping under 29 CFR 1904.7 has its own first-aid list. Each text has its own meaning of first aid, and we do not say whether they match, so read each on its own terms. Whether a given treatment falls beyond first aid under either one is your decision.
Recordable and work-related. The federal text sets out when a case is recordable, and the seven-calendar-day clock follows from that call. Several rules shape the entry. You may cap days away or days of restriction at 180 calendar days, per 1904.7. A case that runs into the next calendar year is recorded once, in the year it occurred. Privacy concern cases, where the employee's name is left off the log, come from a complete list in 1904.29(b). The employer applies those rules to the facts.
Compensable or not. Providing a DWC-1 or filing a report does not answer whether a claim is compensable. That is a separate question. Take it to your claims administrator or counsel.
The same split applies to ClaimsIntake. It does not decide recordability or compensability, and it does not file anything for you.
Where the wording differs or the sources go quiet
Four phrasings of "knowing." Section 5401 starts its clock on "notice or knowledge." Section 6409.1 uses "obtains knowledge." Title 8 §342 uses "knows or with diligent inquiry would have known." The federal log rule uses "receiving information that a recordable injury or illness has occurred."
These are not interchangeable. Treat the knowledge date as Day Zero, then record who knew what and when. An hour-based clock and a working-day clock can start at the same moment and expire on very different dates.
Federal and California severe-injury channels. Federal OSHA says an in-patient hospitalization, amputation or eye loss must be reported within 24 hours, and a fatality within 8 hours (OSHA, checked 2026). California's §342 is expressed as no longer than 8 hours for a serious injury or illness or a death. California runs its own State Plan, Cal/OSHA. Which definitions and channel apply to your establishment is a question to settle with Cal/OSHA. Our State Plan comparison lays out the difference.
A penalty, stated as a fact. Cal/OSHA assesses a minimum penalty of $5,000 for failing to report a serious injury, illness or death as §342(a) requires (California Labor Code §6409.1(b) sets the same floor; Title 8 §336, checked 2026). That is a California figure, and amounts change, so confirm the current one with Cal/OSHA.
What is not stated. Neither §6409.1 nor 8 CCR §14001 says whether the five days are calendar or working days. This guide does not resolve that. A reader who needs a firm answer should get one in writing from the agency or claims administrator, and keep it with the case file.
Other states. If you operate in more than one state, each state has its own clocks. Nothing in California's rules carries over to a site in another state.
Keeping the record defensible, and where tools fit
A defensible record answers three questions: what was known, when, and under which rule. A spreadsheet with a calendar is familiar and flexible, and many are built carefully. It holds dates, though, not the rule that produced each date or the version of that rule in force on the day. A deadline with no citation and no checked date is hard to defend.
Carrier and state portals are free and authoritative, one carrier or state at a time. You file through them yourself. A nurse-triage line, where an employer uses one, handles clinical triage. It does not replace a compliance record of the clocks.
Where ClaimsIntake fits. ClaimsIntake is being built so that one injury report will show every deadline that applies, the source of each deadline, and an OSHA record that builds itself from the same report. Each rule row will carry its agency citation and a "last verified" date. The app has not launched, so you can join the waitlist for updates. You will still decide recordability and compensability, and you will still file.
For California today, the California DWC-1 / 5020 / Cal/OSHA workbook computes deadline dates from the knowledge date and trigger you enter. It is a reference tool. A smaller single-state employer will usually find the workbook route a better fit than waiting for the app.
A practical next step. Before the next injury, settle three things:
- Write one sentence defining the knowledge date for each of the four clocks, using the wording quoted above.
- Get written confirmation of the Form 5020 day count from your claims administrator or the Division of Workers' Compensation.
- Put California's Title 8 recordkeeping provisions beside the federal text you already use.
Then set a named owner and a backup for the calendar entries, so the clocks do not depend on one person's memory.
Reference material with citations, not legal advice. You decide recordability and compensability, and you file.
For launch updates, join the waitlist.
