Compliance and payroll

How to keep an OSHA 300 log

Decide within 7 calendar days whether an injury is recordable, enter it on the 300 log with a 301 incident report, update the day counts as the case develops, then total and certify the log into the 300A at year end. Keep each year's log for 5 years.

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To keep an OSHA 300 log, open a new log each calendar year, and each time you learn of a work-related injury or illness, decide whether it meets the recording criteria in 29 CFR 1904.7. If it does, enter it on the log and complete a 301 incident report (or an equivalent form) within 7 calendar days. Update the entry as days away or restrictions add up, and at year end verify the log, total it onto the 300A summary, have a company executive certify it, and post it from February 1 to April 30.

This guide covers the mechanics of the log itself. For who must keep one, reporting severe injuries, and electronic filing, see OSHA recordkeeping for contractors.

Step-by-step: from injury to log entry

1. Get the facts from the field quickly

The 7-day clock in 29 CFR 1904.29 starts when you receive information that a recordable case occurred, not when the paperwork reaches the office. Foremen need a simple way to report every injury the same day: who, when, where, what happened, and what treatment was given. A daily log with an injury field works if someone reads it.

2. Run the three-part test

Under 29 CFR 1904.4, a case is recordable only if it is work-related, it is a new case, and it meets a recording criterion. The criteria are death, days away from work, restricted work or job transfer, medical treatment beyond first aid, loss of consciousness, or a significant diagnosed injury or illness. First aid has a fixed list in 1904.7, including non-prescription medication at non-prescription strength, bandages, cleaning surface wounds, hot or cold therapy, elastic wraps, removing splinters by simple means, eye patches, and drinking fluids for heat stress. Anything outside the list, like sutures or a prescription, counts as medical treatment.

3. Enter the case

Fill in the establishment information at the top of the log. For each case, assign a case number, enter the employee's name and job title, the date and where the event occurred, a one or two line description of the injury or illness and the body part, and the outcome. Mark the most serious outcome: death, days away, job transfer or restriction, or other recordable case. Use the same case number on the 301 report so the two documents tie together.

Which log does the case go on? Job sites expected to last less than a year are short-term establishments, and 29 CFR 1904.30 lets you keep one log for all of them or group them by division or region. A permanent shop or yard usually gets its own log. Decide the structure in January and write it down so every injury lands in the same place.

4. Protect privacy cases

For certain cases you write privacy case instead of the employee's name. 29 CFR 1904.29 lists them: injuries to an intimate body part or the reproductive system, injuries from sexual assault, mental illnesses, HIV, hepatitis, or tuberculosis, needlestick and sharps injuries contaminated with another person's blood or other potentially infectious material, and other illnesses when the employee voluntarily asks that the name be left off. Keep a separate confidential list linking case numbers to names.

5. Count days correctly

Start counting the day after the injury. Count calendar days, including weekends and holidays, when the employee could not have worked because of the injury. You may stop counting at 180 days, and the cap covers days away and restricted days together. If a doctor recommends days off and the worker comes in anyway, record the recommended days.

6. Update the entry as the case changes

A sprain recorded as restricted work can turn into surgery and days away. Line out or remove the original entry and enter the new information. Under 29 CFR 1904.33, this updating duty continues during the 5-year retention period, including adding cases you learn about late.

7. Close the year with the 300A

Under 29 CFR 1904.32, review the log for completeness, total the columns onto the 300A, and add the average number of employees and total hours worked. If there were no recordable cases, enter zeros. A company executive certifies it: an owner of a sole proprietorship or partnership, a corporate officer, the highest-ranking official at the establishment, or that person's immediate supervisor. Post it where employee notices go, by February 1, and leave it up through April 30.

Worked example: one case, three updates

Say an electrician falls from a 6-foot ladder on Monday, March 9. Here is how the entry moves.

Example case history (illustrative)
DateWhat happenedLog action
Mar 9Taken to urgent care, wrist X-rayed, rigid splint applied, cleared for light dutyRecordable (rigid splint is not on the first aid list). Enter by Mar 16 as job transfer or restriction
Mar 10 to Mar 23Works light duty, no ladder workCount 14 restricted days
Mar 24Follow-up shows fracture needs surgery; off work 21 daysChange outcome to days away; record 21 days away
Apr 14Returns to full dutyFinal counts: 14 restricted, 21 away. Case closed

Because the outcome changed, the most serious outcome box moves from job transfer or restriction to days away. Both day counts stay on the line. A case like this also belongs in your incident and near miss reporting and your fall protection plan review.

Mistakes to avoid

  • Recording from the workers comp claim instead of the OSHA criteria. The systems overlap but are separate. Some comp claims are not recordable, and some recordable cases never become claims.
  • Counting workdays instead of calendar days. Weekends count if the worker could not have worked.
  • Forgetting the 301. Every log entry needs an incident report or equivalent form.
  • Leaving names on privacy cases.
  • Not updating. An entry that still says restricted work after surgery understates the case.
  • Posting late or not at all. The 300A goes up by February 1 even with all zeros.

Who can see the log

Employees, former employees, their personal representatives, and authorized employee representatives can request the log, and under 29 CFR 1904.35 you must provide a copy by the end of the next business day, with names left on except for privacy cases. During an inspection, 1904.40 gives you 4 business hours to produce records for OSHA. Keep the log where more than one person can reach it.

Related terms and tools

See the glossary entry for the OSHA 300 log, the construction daily report template, and how to prepare for an OSHA inspection. Smart Business Automator's daily log summaries and risk alerts can surface injuries mentioned in field reports so the office can make the recordability call on time, as part of construction workflow automation.

Frequently asked questions

Can I keep the OSHA 300 log on a computer?

Yes. 29 CFR 1904.29 allows equivalent forms as long as they contain the same information, are as readable, and are completed using the same instructions. Many employers use software or an insurance form in place of the 301.

Is a rigid splint first aid?

No. The first aid list covers non-rigid supports and temporary immobilization while transporting a victim. A rigid splint applied for support is medical treatment, so the case is recordable.

What is the maximum number of days I record?

You may cap the count at 180 calendar days, and the cap covers days away and restricted days combined.

What if I find out about an injury months later?

Record it once you learn of it. 29 CFR 1904.33 requires updating stored logs to add newly discovered recordable cases during the 5-year retention period.

Who signs the OSHA 300A?

A company executive: an owner of a sole proprietorship or partnership, a corporate officer, the highest-ranking company official at the establishment, or that official's immediate supervisor.

Sources

  1. Cornell LII: 29 CFR 1904.4 Recording criteria
  2. Cornell LII: 29 CFR 1904.7 General recording criteria
  3. Cornell LII: 29 CFR 1904.29 Forms
  4. Cornell LII: 29 CFR 1904.30 Multiple business establishments
  5. Cornell LII: 29 CFR 1904.32 Annual summary
  6. Cornell LII: 29 CFR 1904.33 Retention and updating
  7. Cornell LII: 29 CFR 1904.35 Employee involvement
  8. Cornell LII: 29 CFR 1904.40 Providing records to government representatives
Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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