It's a Tuesday afternoon at a small insurance office outside Columbus, Ohio. The office manager climbs a two-step stool to pull a box of old client files off a high shelf, loses her footing, and hits the tile floor hard. She's taken by ambulance and admitted overnight for observation. The firm has 14 employees and sits inside one of OSHA's partially exempt industries, so nobody there has ever filled out a 300 Log. Nobody realised that fact didn't matter today. This is the story of what happened next, and the rule most partially exempt employers never read closely enough.
What does "partially exempt" actually cover under OSHA's rule?
Partial exemption is a narrow, specific thing, and it's worth being precise about what it touches. Under Appendix A to Subpart B of 29 CFR Part 1904, OSHA has designated a set of industries, historically clustered in retail trade, finance and insurance, real estate, and a range of professional and personal services, as low-hazard enough that they don't need to keep the routine OSHA 300 Log or post the annual 300A summary. A second, separate exemption applies by size: any employer with 10 or fewer employees at all times during the last calendar year is also excused from routine recordkeeping, regardless of industry.
Both exemptions do exactly one job. They remove the paperwork burden of logging every recordable injury and illness throughout the year and posting a summary of it each February. That's genuinely useful for a small brokerage, a real estate office, or an insurance agency that will likely go years without a serious incident. It is also the entire scope of what the exemption does. It does not touch OSHA's inspection authority. It does not touch the General Duty Clause. And it does not touch the separate, much narrower duty to report a severe event when one actually happens.
That last point is where the insurance office in Columbus went wrong, and it's a mistake that's easy to make because the two duties sound like they belong to the same family. They don't.
Does the 1904.39 reporting duty apply to partially exempt employers?
Yes, without exception. 1904.39 is a standalone reporting rule that sits apart from the routine recordkeeping requirements in the rest of Part 1904, and it applies to every employer covered by the Occupational Safety and Health Act, including one that has never opened a 300 Log in its history. The rule is specific about timing and triggers:
- A work-related fatality must be reported to OSHA within 8 hours.
- A work-related in-patient hospitalisation, amputation, or loss of an eye must be reported within 24 hours.
The report goes to OSHA by phone to the nearest area office, through the 24-hour OSHA hotline, or online. None of those channels checks whether the employer's industry code appears on the Appendix A exemption list first. The clock starts when the employer knew, or reasonably should have known, that the event happened and that it met one of those four criteria. It doesn't pause for a business that's used to thinking "OSHA doesn't apply to us."
That's the trap. An employer can be entirely correct that it owes no 300 Log for the year and still owe a report within hours of a single incident. Those are two separate legal duties, tested against two separate facts, and a partially exempt employer that treats them as one is going to miss the second one eventually.
What happened at the insurance office
Back to Columbus. The office manager's fall happened around 2:30pm. She was admitted to hospital that evening for observation of a head injury, which is what makes this an in-patient hospitalisation under 1904.39, triggering the 24-hour window regardless of how the visit eventually resolved. Nobody at the firm made the connection at the time. The owner visited her in hospital that night, HR filed a workers' compensation claim the next morning, and the firm's insurance broker (a different firm, handling the workers' comp side) opened a claim file. Everyone treated it as a workers' compensation matter, because that's the process the firm actually had.
Nine days later, during a routine follow-up call about the workers' comp claim, an adjuster asked an offhand question: "Did you guys report that to OSHA?" The office manager who fielded the call assumed no report was needed. "We're insurance, we're exempt," she said. That sentence, almost word for word, shows up in similar stories across a range of partially exempt industries. It's the sentence that feels true and isn't.
Once someone actually checked the regulation, the gap became clear. The 24-hour window for the hospitalisation had closed more than a week earlier. The firm called OSHA's area office, explained what happened, and made the report late, along with a note explaining the delay. It was better than not reporting at all, but a late report to OSHA still draws scrutiny an on-time one wouldn't have, and the firm spent real time afterward untangling paperwork it should have filed within a day.
What changed afterward is the more useful part of the story. The firm didn't decide it needed a full-time safety coordinator, and it didn't start keeping a 300 Log it still doesn't legally need. It did one specific thing: it named a single person, in writing, as the one responsible for knowing about the 1904.39 clock and picked up the phone the moment any injury looked serious. That's a much smaller fix than the mistake made it feel like at the time.
"The exemption gets treated like a blanket 'don't worry about OSHA' pass," one EHS manager we spoke with put it, "when really it's just permission to skip a form. The reporting clock doesn't care what your NAICS code says."
What partial exemption removes versus what it doesn't
| What partial exemption removes | What partial exemption does NOT remove |
|---|---|
| The routine OSHA 300 Log for the calendar year | The 8-hour fatality reporting duty under 1904.39 |
| Posting the annual Form 300A summary | The 24-hour hospitalisation, amputation, and eye-loss reporting duty |
| Routine day-to-day injury and illness logging | OSHA's authority to inspect the workplace |
| The administrative burden of case-by-case classification | The General Duty Clause obligation to run a safe workplace |
| — | The possibility OSHA or BLS asks, in writing, for records anyway |
Partial exemption is a paperwork exemption, not an exemption from OSHA's jurisdiction. See Job13's exemptions reference for the current Appendix A picture by industry.
Where teams get this wrong
The Columbus case isn't unusual. A few specific mistakes show up again and again at partially exempt employers, and most of them trace back to the same root cause: nobody ever separated the recordkeeping exemption from the reporting duty in the first place.
- No one is assigned the reporting duty at all. At a business that never keeps a 300 Log, there's often no equivalent of a safety coordinator, no single person whose job it is to know that 1904.39 exists. The duty falls through a gap nobody knew was there.
- "Exempt" gets read as "no OSHA obligations." This is the sentence from the case study, and it's the single most common failure mode. Exemption from the log gets generalised into exemption from OSHA entirely, which the regulation never says.
- Nobody's watching for the 24-hour clock. Even when someone knows the reporting duty exists in principle, an incident that happens on a Friday evening or during a manager's time off can slip past the window simply because no one was checking the calendar against the clinical outcome.
- Confusing a workers' compensation filing with an OSHA report. These are two entirely different systems with two entirely different recipients. Filing a workers' comp claim satisfies nothing under Part 1904, and treating the two as interchangeable is how the Columbus firm lost nine days.
- Assuming a delayed report is close enough. Once the window has closed, reporting late is still the right move, but it isn't the same as reporting on time, and it invites more attention than a same-day report would have. Read the difference between what makes a case recordable in the first place and what makes it separately reportable in Job13's guide to recordable vs. reportable.
The pattern generalises well beyond insurance offices. Real estate brokerages, small retailers, professional service firms, and any other business sitting on Appendix A's partial exemption list carry the same blind spot, because the exemption itself is what creates it. Businesses that log injuries all year round have a process, and a person, already built around noticing serious events. Businesses that don't keep a log have neither, until the day they need one.
How do you build the reporting duty into a business that doesn't keep a log?
The fix doesn't require adopting the full recordkeeping programme a non-exempt employer runs. It requires three smaller habits that fit a business with no log at all.
First, name one person, by title, who owns the reporting duty. It doesn't need to be a dedicated safety role. An office manager, an HR lead, or an owner-operator can hold it, as long as the responsibility is written down somewhere rather than assumed.
Second, build a short, simple test into how any injury gets handled: did it involve a fatality, an overnight hospital admission, an amputation, or loss of an eye? If yes to any of those, the 8-hour or 24-hour clock has already started, and the report goes in before anything else happens, including the workers' compensation paperwork.
Third, when there's genuine doubt about whether an incident meets one of those four thresholds, don't guess. Run the facts through Job13's free recordability check, which applies the Part 1904 criteria consistently and returns a clear determination, or flags the case as needing human review when the regulation itself leaves room for judgement. That's a deliberate design choice: guessing wrong under time pressure is exactly how the Columbus firm's nine days happened. Job13 covers the federal rule as written; it isn't legal advice, and a business operating under a state plan should still confirm its state's own reporting timelines apply the same way.
Even a partially exempt employer that never opens a 300 Log can benefit from understanding how the full recordability test works, since the same fact pattern that triggers a 1904.39 report often also matters for insurance and liability purposes. What counts as OSHA recordable and OSHA's own exempt industries picture are both worth reading before an incident happens, not after.
If your business sits on OSHA's partial exemption list and you've never confirmed exactly what that does and doesn't cover, start with Job13's exemptions reference and run any borderline incident through the free recordability check before assuming no report is owed.
Frequently asked questions
Do partially exempt employers still have to report a hospitalisation to OSHA?
Yes. The 1904.39 reporting duty for fatalities, in-patient hospitalisations, amputations, and loss of an eye applies to every employer covered by the Occupational Safety and Health Act, including those whose industry or size exempts them from the routine 300 Log. The two obligations are separate, and one surviving does not depend on the other applying.
How much time does an employer have to report a severe injury under OSHA's rule?
A work-related fatality must be reported within 8 hours. A work-related in-patient hospitalisation, amputation, or loss of an eye must be reported within 24 hours. Both clocks start when the employer knew, or reasonably should have known, about the event and that it met the criteria, not when someone gets around to checking the rule.
What industries are considered partially exempt from OSHA recordkeeping?
Appendix A to Subpart B of Part 1904 lists categories historically clustered around retail trade, finance and insurance, real estate, and many professional and personal services. Employers with 10 or fewer employees at all times during the prior calendar year are separately exempt regardless of industry. Both exemptions cover only the routine 300 Log and 300A summary, not the 1904.39 reporting duty. See Job13's exemptions page for the current picture by category.
Can OSHA still ask a partially exempt employer to keep records?
Yes. OSHA or the Bureau of Labor Statistics can send a written request asking an otherwise exempt employer to keep records for a specific year, typically for a data collection survey. That request overrides the exemption for whatever period it specifies, which is one more sign the exemption was never meant to be absolute.
Where can I read the exact text of the reporting rule?
The source section is 1904.39, and the full Part 1904 text is at /rule/1904. OSHA's own summary sits at osha.gov/injuryreporting, the full regulation is at osha.gov/laws-regs/regulations/standardnumber/1904, and the current codified text is on the eCFR. For scenarios the plain text doesn't spell out, OSHA's Letters of Interpretation cover a wide range of edge cases.
