A 6:15 p.m. Call From the Dock: When Does the Clock Start?
At 6:15 p.m. on a Thursday, a shift supervisor at a distribution center calls the site's safety manager. A forklift pinned a warehouse associate's hand against a rack at about 3:30. The associate was taken to the hospital by ambulance. Nobody on site yet knows whether the hospital has admitted them, kept them for observation, or sent them home with a splint.
The safety manager has to decide something before the shift ends. Does this event trigger a federal report, and if so, when did the clock start? The answer turns on a few phrases in 29 CFR 1904.39: what was lost, what the hospital did, when it happened, and when the employer learned of it. The employer establishes those facts, and the employer makes the call.
This article walks through the triggers, definitions, windows and channels. By the end, you will be able to read an event against 1904.39, name the clock that applies, and know where the report goes.
Reference material with citations, not legal advice. You decide recordability and compensability, and you file.
OSHA severe injury reporting requirements: four triggers, two clocks
Section 1904.39 of the OSHA recordkeeping rule (29 CFR 1904.39, checked 2026) names four events. Each is its own trigger for a report to OSHA. Three of them share one 24-hour clock, and the fourth has its own.
The fatality trigger
The regulation's words are: "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; OSHA's reporting page, 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 to any of your agent(s)." If you learn only later that it was work-related, 1904.39(b)(8) runs them from when you or your agents learn that.
Searches for OSHA 8 hour fatality reporting usually come from someone who has just heard the worst news of the year. The employer's task is narrow: establish that the death is work-related and report it, and record when each fact reached you.
Under 1904.39(b)(6), "You must only report a fatality to OSHA if the fatality occurs within thirty (30) days of the work-related incident," as OSHA's enforcement memo on 1904.39 (2016) also explains. Worked example: a worker is injured on a Monday and dies in the hospital 20 days later. The 8 hours run from the death, or from when the death is reported to you if that is later, not from the Monday of the injury.
The severe-injury triggers
An employer must report a work-related in-patient hospitalization, amputation or loss of an eye to OSHA within 24 hours after the event (29 CFR 1904.39(a)(2), checked 2026), with the same later start points under (b)(7) and (b)(8). OSHA puts it this way on its reporting page:
"An in-patient hospitalization, amputation, or eye loss must be reported within 24 hours." — OSHA, Report a fatality or severe injury (checked 2026)
The 24-hour figure appears in two roles, and they should not be confused. One is the reporting clock. The other is an eligibility window: under 1904.39(b)(6), an in-patient hospitalization, amputation or eye loss is reported only "if it occurs within twenty-four (24) hours of the work-related incident" (also in OSHA's 2016 memo). The fatality uses a 30-day eligibility window instead. Events outside those windows are not reported, but they still go on your injury records if you keep them.
The duty is not limited to employers that keep injury logs. 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 (checked 2026). The same paragraph says that "as required by § 1904.39, all employers covered by the OSH Act must report" these events to OSHA.
Reportable is not the same as recordable
Reporting to OSHA and entering a case on the 300 log are separate duties with separate triggers and clocks. A single event can be one, both or neither. The log entry for a recordable case has its own 7-calendar-day clock, covered in recordable versus reportable. Do not let a decision on one answer the other.
How common these reports are
OSHA's severe-injury summary found that employers reported an average of 27 severe injuries and illnesses per day in 2022–2023 (OSHA, 2022–2023). The same summary counts 19,690 in-patient hospitalizations and amputations at establishments under federal OSHA in 2022 and 2023. These are federal OSHA jurisdiction figures only.
Definitions: In-Patient Hospitalization, Amputation and Loss of an Eye
The triggers depend on defined terms in 1904.39(b)(9) to (b)(11). The short quotes below come from the regulation. Read the full paragraphs before you decide a close case.
In-patient hospitalization: observation only is a different thing
The question of in-patient hospitalization, observation only, comes up more than any other. OSHA "defines in-patient hospitalization as a formal admission to the in-patient service of a hospital or clinic for care or treatment" (1904.39(b)(9)). Under (b)(10), "you do not have to report an in-patient hospitalization that involves only observation or diagnostic testing." This is why the opening scenario cannot be answered at 6:15 p.m. The associate's status depends on what the hospital did, and the employer has to find that out. A supervisor can ask the employee or a family member, or the hospital can confirm admission. If the answer is unclear, the employer should keep asking and note each attempt, with the time each fact arrived.
Amputation
The question of what counts as an amputation under OSHA reporting rules is broader than many expect. Under 1904.39(b)(11), "An amputation is the traumatic loss of a limb or other external body part." The paragraph includes "fingertip amputations with or without bone loss," "medical amputations resulting from irreparable damage," and "amputations of body parts that have since been reattached." It is not limited to a whole limb.
The same paragraph lists what amputations do not include: avulsions, enucleations, deglovings, scalpings, severed ears, or broken or chipped teeth. Read the full paragraph before you decide that an event falls outside it. An employer that guesses wrong has probably lost time on the clock.
Loss of an eye
Section 1904.39 defines in-patient hospitalization and amputation, but it does not set out a separate definition of loss of an eye. If an eye injury is a close case, confirm with OSHA. OSHA's severe-injury summary says "No eye losses have been reported to OSHA from 2016 through 2023" (OSHA, 2022–2023), which is a federal OSHA jurisdiction figure.
Work-relatedness and exceptions
Each trigger applies only to a work-related event. Whether the event is work-related is the employer's decision. The regulation also lists specific exceptions to reporting. Under 1904.39(b)(3), a motor vehicle accident on a public street or highway is not reported unless it occurred in a construction work zone. Under (b)(4), an event on a commercial or public transportation system, such as an airplane, train, subway or bus, is not reported. Under (b)(5), a work-related fatality or in-patient hospitalization caused by a heart attack must be reported.
What you decide, and what the rule says
The rule says what counts as a fatality, hospitalization, amputation or eye loss, and how long you have. You decide whether the event is work-related, whether the facts fit the definition, and when you learned of it. ClaimsIntake does not decide any of that. Record who decided, on what information, and at what time. That record is what makes the decision defensible later.
How to Report: Three Channels and the Online Form
Under OSHA's reporting page (checked 2026), and 1904.39(a)(3), an employer can report a fatality or severe injury three ways: by telephone or in person to the nearest OSHA Area Office, by calling 1-800-321-6742, or online through OSHA's reporting application. If the Area Office is closed, (b)(1) says to use the 800 number or the online application, not a message, fax or email. OSHA is the authoritative channel, and it is free.
Pick one channel and keep a record of it. Note the time you learned of the event, the time you reported, the channel, the name of the person who reported, and any confirmation OSHA gave. Under 1904.39(b)(2), you must give OSHA the establishment name, the location and time of the incident, the type of event, the number and names of the employees affected, your contact person and phone number, and a brief description. Where facts are still unknown, say so rather than guessing.
Two clarifications keep the channels straight. First, the employer reports; software never does. ClaimsIntake links to OSHA's channels and never submits a report to OSHA or anyone else. Second, this report is separate from the annual electronic data submission through OSHA's Injury Tracking Application (see the ITA user guide), which is a different channel with different deadlines and covers other records.
Carrier or state workers' compensation first reports are separate again. A nurse-triage hotline may take the first report to the carrier. That is useful, and it is complementary, but it does not replace the OSHA report. Your own state's agency may also want a call. For the overall picture, see the workplace injury reporting requirements overview.
State Plan Differences, Knowledge Dates and Multi-Site Edge Cases
OSHA lists 22 State Plans covering both private-sector and state and local government workers, and seven covering public-sector workers only (OSHA State Plans, checked 2026). State Plans run their own programs, and each agency sets its own reporting rule, which may differ from federal timing and wording. Confirm the recipient with the agency for each site. The table shows three examples; OSHA's State Plans page has the full list. For the differences, see State Plan versus federal severe-injury reporting.
| Jurisdiction | Trigger | Unit | Recipient | Source |
|---|---|---|---|---|
| Federal OSHA | Work-related fatality; after the death, or after it is reported to you | 8 hours | OSHA | 29 CFR 1904.39(a)(1), (b)(7), checked 2026 |
| Federal OSHA | In-patient hospitalization, amputation or eye loss; after the event, or after it is reported to you | 24 hours | OSHA | 29 CFR 1904.39(a)(2), (b)(7), checked 2026 |
| California | Serious injury, illness or death; employer knows or with diligent inquiry would have known | Immediately, no longer than 8 hours | Division of Occupational Safety and Health (Cal/OSHA) | Title 8 §342(a), checked 2026 |
| North Carolina | Work-related fatality | 8 hours | OSH Division, NCDOL | NCDOL, checked 2026 |
| North Carolina | In-patient hospitalization, amputation or eye loss | 24 hours | OSH Division, NCDOL | NCDOL, checked 2026 |
| Michigan | In-patient hospitalization of one or more employees | 24 hours | MIOSHA | MIOSHA-ADM-15-6, checked 2026 |
Two things stand out. California's trigger is written in terms of what the employer "knows or with diligent inquiry would have known" (Title 8 §342, checked 2026), which is not the same wording as the federal text. Section 342 also says that if the employer can demonstrate exigent circumstances, the report may be made no longer than 24 hours after the incident. The rule applies to a "serious injury or illness," so confirm the current definition of that term with Cal/OSHA. Read the California rules in Cal/OSHA's 8-hour serious injury reporting before you rely on any federal summary. Michigan's agency instruction says it replaced an earlier 8-hour rule for hospitalization of three or more employees. Confirm the Michigan fatality timing with MIOSHA, since this table does not give it.
Knowledge dates
When the event is not reported to you right away, the federal clock runs from when it is reported to you or your agents, so the moment you learned of the event is the most important fact in the file. Treat that moment as Day Zero, and record who learned what, when, and from whom. A supervisor's call to a safety manager is not the same moment as the safety manager's call to OSHA. The question of when the 24-hour clock starts has its own treatment in when the OSHA 24-hour clock starts.
Multi-site and multi-state
A central owner at a multi-site employer needs a reliable way to hear about events from every site, including at night. An event in a State Plan state may need a different channel than one in a federal OSHA state, and it can happen on the same day. A single named person without a backup is a single point of failure. Write down who calls, who covers after hours, and who confirms the call was made.
Keeping the Record Defensible, and Where Tools Fit
A reviewer asking about a late or missed report will want to know what you knew, when you knew it, and which rule you applied. A deadline copied from memory, or from a chat answer with no citation or verification date, is hard to defend. Keep the source for each clock next to each date.
Most employers hold this today in spreadsheets, calendar reminders and email threads. That setup is flexible and familiar, and many are built carefully. They hold dates well but not the rule that produced a date, and they keep no trail of which rule applied when a clock started. That gap shows when an event happens at 9 p.m. and the person who owns the file is off shift.
ClaimsIntake's store workbook for this topic, the severe-injury reporting coverage workbook, computes outputs rather than offering blank forms. Enter the time the employer learned of the event, and it computes the report-by date and time for the 8-hour and 24-hour clocks. It checks the event against the 30-day and 24-hour eligibility windows, and it shows who is covering the call when the clock runs outside business hours. It does not decide whether the event is reportable, and it does not report anything. You decide, and you report to OSHA.
The ClaimsIntake app is still being built and is not live. It will carry severe-injury prompts that link to the OSHA or State Plan reporting channel, with escalating email alerts to an owner and a backup contact. Each rule row will carry a citation and a "last verified" date. To follow its progress, join the waitlist. The workbook is the route for a single-state employer with 20 to 100 employees.
Next step
Before the next event, do three things. Name the person who reports and a backup. Check your State Plan agency's current rules, and confirm the channel with OSHA or that agency. Then rehearse an after-hours call using the opening scenario.
Reference material with citations, not legal advice. You decide recordability and compensability, and you file.
For the clocks, a computed report-by time and an on-call roster, start with the severe-injury reporting coverage workbook.
