A supervisor's call at 2:40 on a Friday afternoon
Picture a distribution center at 2:40 p.m. on a Friday. A forklift pins a loader's hand against a rack, and the shift supervisor phones the site's safety lead, who is also the HR manager. The loader is on the way to the emergency department. Nobody knows yet whether this is first aid, a recordable case or something OSHA must hear about directly.
The safety lead has a binder, a spreadsheet and an email thread. She also has the question that reaches every employer in some form: how long do you have to report an injury to OSHA?
The honest answer depends on the event. OSHA runs three separate clocks, and they differ in what starts them, in the unit they count and in who receives the information. Only two of them end in a report to OSHA. By the end of this article you will be able to sort an injury into the right clock, name its trigger, unit and recipient, and see where a State Plan changes the result.
Reference material with citations, not legal advice. You decide recordability and compensability, and you file.
How long do you have to report an injury to OSHA? Match the event to the clock
Most injuries on your site are never reported to OSHA directly. They are recorded on your own log. Direct reporting applies only to a short list of severe events under 29 CFR 1904.39, and everything else follows the recordkeeping rules in Part 1904. The table sorts the three clocks by event, unit and recipient (both sources checked 2026).
| Trigger | Limit | Unit | Recipient | Source |
|---|---|---|---|---|
| Work-related fatality | 8 | hours | OSHA | 29 CFR 1904.39(a)(1) |
| Work-related in-patient hospitalization, amputation or eye loss | 24 | hours | OSHA | 29 CFR 1904.39(a)(2) |
| Information that a recordable case has occurred | 7 | calendar days | Your own OSHA 300 Log and 301 | 29 CFR 1904.29(b)(3) |
Two clocks count hours and one counts calendar days. Mixing the units is easy to do, so write the unit beside every number you copy onto a wall chart.
A quick three-question sort works for any new injury:
- Did the injury result in a death? If so, the 8-hour clock applies.
- Did it result in an in-patient hospitalization, an amputation or the loss of an eye? If so, the 24-hour clock applies.
- Otherwise, decide whether the case is recordable. If it is, the seven-day recording clock applies.
Questions 1 and 2 are not mutually exclusive with question 3. A reportable event is usually also recordable, so one injury can start more than one clock.
The 8-hour clock: fatalities
The regulation reads: "Within eight (8) hours after the death of any employee as a result of a work-related incident, you must report the fatality" to OSHA (29 CFR 1904.39(a)(1), checked 2026). If you do not learn of the death when it happens, 1904.39(b)(7) runs the 8 hours from when it is reported to you or any of your agents. If you learn only later that it was work-related, (b)(8) runs them from when you learn that.
OSHA 8 hour fatality reporting also has a longer tail. Under 1904.39(b)(6), a fatality is reported if it "occurs within thirty (30) days of the work-related incident," as OSHA's 2016 enforcement memo also says. A death weeks after an incident can therefore still be reportable, and the 8 hours run from the death or from when it is reported to you.
The 24-hour clock: hospitalization, amputation, eye loss
An employer must report a work-related in-patient hospitalization, amputation or eye loss to OSHA within 24 hours after the event, under 29 CFR 1904.39(a)(2), with the same later start points in (b)(7) and (b)(8). OSHA's reporting page puts it briefly:
"An in-patient hospitalization, amputation, or eye loss must be reported within 24 hours." — OSHA, Report a Fatality or Severe Injury (checked 2026)
Section 1904.39(b)(6) adds a second window, also described in the 2016 memo: the event is reported only if it occurs within 24 hours of the work-related incident. When the reporting clock itself starts is a separate question, covered in when the OSHA 24-hour clock starts. The hospitalization guide covers what counts as in-patient.
Under 1904.39(a)(3), OSHA accepts a report by telephone or in person to the nearest OSHA Area Office, by calling 1-800-321-6742, or online (OSHA, checked 2026). OSHA's severe-injury summary says employers reported an average of 27 severe injuries and illnesses per day in 2022–2023 (OSHA severe injury report). The wider picture is in OSHA severe injury reporting requirements.
The seven-day clock: recording, not reporting
Each recordable injury or illness must be entered on the OSHA 300 Log and the 301 Incident Report within seven calendar days of receiving information that a recordable case has occurred (29 CFR 1904.29(b)(3), checked 2026). The recipient is your own recordkeeping system, not OSHA. Many people who search how long do you have to report an injury to OSHA are really asking about this clock.
The clock runs from information that a recordable case occurred, and recordability is your decision. The rule tells you what to enter and when. You decide whether the case meets the recording criteria. The OSHA Form 301 guide walks through the incident report itself.
Nights, weekends and the channels that stay open
The 8-hour and 24-hour limits are stated in hours, not business days or working days. Section 1904.39 does not mention weekends or holidays. For a closed Area Office, (b)(1) says to report using the 800 number or OSHA's online application, not by voicemail, fax or email. We found no OSHA source that pauses the count for weekends or holidays, so confirm with OSHA before assuming any pause.
The practical consequence is staffing. A report that cannot wait for Monday needs a named person who can make the call on a Saturday night. It also needs a backup, because the person who owns injury reporting is often one person with other duties.
Size does not remove these duties. A company with 10 or fewer employees at all times during the last calendar year is partially exempt from routine recordkeeping under 29 CFR 1904.1. The same paragraph says that "as required by § 1904.39, all employers covered by the OSH Act must report" these severe events to OSHA (29 CFR 1904.1(a)(1), checked 2026).
Where a State Plan changes the answer
There are currently 22 State Plans covering both private sector and state and local government workers, and seven covering public-sector workers only (OSHA, checked 2026). In a State Plan state, the agency sets its own reporting rule, and its timing can differ from the federal text, so confirm the recipient with that agency. Three examples follow. For any other state, check the OSHA page and your state agency.
- California. Title 8 §342(a) says every employer "shall report immediately to the Division of Occupational Safety and Health any serious injury or illness, or death," and defines immediately as "not longer than 8 hours after the employer knows or with diligent inquiry would have known" (Title 8 §342, checked 2026). The rule also allows up to 24 hours where the employer can demonstrate exigent circumstances. Confirm the current definition of "serious" and the reporting channel with Cal/OSHA.
- North Carolina. NCDOL says to report a work-related fatality to the OSH Division within eight hours, and an in-patient hospitalization, amputation or loss of an eye within 24 hours of the incident (NCDOL, checked 2026).
- Michigan. MIOSHA requires employers to report the in-patient hospitalization of one or more employees within 24 hours, replacing the earlier 8-hour rule that applied to three or more (MIOSHA instruction ADM-15-6, checked 2026). Confirm fatality and amputation timing with MIOSHA.
A separate set of clocks sits beside these. Workplace injury reporting deadlines by state usually run to a carrier or a state board, not to OSHA, and each has its own trigger. In California, the Division of Workers' Compensation tells employees that "your employer must give or mail you a claim form within one working day after learning about your injury or illness" (DWC, checked 2026; Labor Code §5401). In Florida, "within 7 days after actual knowledge of injury or death, the employer shall report such injury or death to its carrier" (Fla. Stat. §440.185(2), checked 2026). The statute does not say whether those are calendar or working days, so confirm with the Florida Division of Workers' Compensation. Neither replaces an OSHA clock, and the OSHA clock does not satisfy either.
Recording what you knew, and the dates that follow
Every clock above starts from something the employer knew. A defensible file records who learned what, and when, as it happens. Reconstructing a knowledge date after an inspection is far harder than writing it down at the time.
Two dates come later in the year. The OSHA 300A summary must be posted no later than February 1 of the year following the year covered by the records, and kept posted until April 30 (29 CFR 1904.32(b)(6), checked 2026). Covered establishments must also submit data electronically to OSHA through the Injury Tracking Application by March 2 of the year after the covered year. Calendar-year 2025 data was due March 2, 2026 (OSHA ITA user guide). Under 29 CFR 1904.41(a), establishments with 20–249 employees in industries listed in Appendix A to Subpart E submit 300A data, those with 250 or more that must keep records also submit 300A data, and those with 100 or more in Appendix B industries also submit 300 and 301 data.
The Injury Report Deadline Calculator by State workbook computes deadline dates by state from the date you learned of an event. It is a reference tool: you decide recordability, and you file. A single-state employer with 20–100 employees can start with the workbook rather than a subscription. ClaimsIntake is also building an app that will carry a citation and a "last verified" date on each rule row. It is not live yet, and ClaimsIntake never submits anything to OSHA or anyone else.
Your next step is small. Next time someone asks how long do you have to report an injury to OSHA, hand them a one-page sheet listing each event, its clock, its unit, its recipient and the backup contact's phone number. Then check whether your state runs its own State Plan at osha.gov/stateplans. To follow new guides in this series as they publish, join the waitlist.
