Three forms, one case. The 301 records what happened; the 300 log summarises it on one line; the 300A is the annual total you post. Most compliance problems are form-mapping problems, not judgement problems.
| Form | What it holds | When |
|---|---|---|
| 301 — Incident Report | The narrative: what happened, the injury or illness, the object or substance involved, the treatment given, days away or restricted | Within seven calendar days of learning about the case |
| 300 — Log of Work-Related Injuries and Illnesses | One line per case: case number, employee name (or "privacy case"), job title, date, where the event occurred, description, and the classification | Same seven days; updated if the case changes (for example days away become restricted work) |
| 300A — Summary of Work-Related Injuries and Illnesses | Annual totals for the establishment: number of cases by type, days away, days of restricted work, injury types | Post from 1 February to 30 April, then keep it |
A workers' compensation report can replace the 301 if it carries the same information (1904.29(b)(2)). It does not replace the 300 entry.
Some cases are recorded but de-identified. Instead of the name, write "privacy case" on the 300 log, and keep a separate confidential list that maps the case number to the employee. The categories include:
Keep the 300, 300A and 301 for five years following the end of the calendar year they cover (1904.33). During that period you must update the log for changes — a case that gains days away later, or a classification that changes — and provide records to employees, former employees, representatives and OSHA on request.
Larger establishments in designated industries submit injury and illness data through OSHA's Injury Tracking Application (ITA); smaller ones in those industries submit the 300A summary. The thresholds and the industry list have changed more than once — check OSHA's current ITA requirements for the establishment's size and NAICS code rather than relying on an old guide.
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Primary sources only — the statute, form or paper this page is built on.