What is the OSHA 300 log?
The OSHA 300 log is the employer's record, for each year, of the work-related injuries and illnesses that OSHA's recordkeeping rule says must be recorded.
Also called Form 300, Log of Work-Related Injuries and Illnesses
What it means.
29 CFR 1904.29 requires covered employers to use OSHA 300, 300-A and 301 forms, or equivalent forms. The 300 is the Log of Work-Related Injuries and Illnesses, the 300-A is the Summary of Work-Related Injuries and Illnesses, and the 301 is the Injury and Illness Incident Report for each case. Each recordable case must be entered within seven calendar days of receiving information that it occurred.
The log is a legal record with a specific scope. It is not a near miss register or a corrective action tracker, and mixing those in makes it harder to keep accurate.
Where it shows up on a job.
When a worker needs stitches after a cut, the safety lead decides whether it is work-related and recordable, enters it on the 300 log and completes a 301, and at year end the totals go onto the 300-A summary.
Where this comes from.
Each source was read on 22 October 2026. Guidance is advice; a regulation is the rule.
- 29 CFR 1904.29Code of Federal Regulations, Title 29. Regulation. The forms, equivalent forms and the seven-day entry.
- Injury and Illness Recordkeeping FormsOccupational Safety and Health Administration. OSHA guidance, advisory. The forms themselves.
A plain-language definition, not legal advice. For a decision on your site, read the standard that applies to it.
Related terms
- recordable injury or illness
A recordable injury or illness is a work-related case serious enough, under OSHA's recordkeeping tests, that it must be entered on the OSHA 300 log.
- TRIR
TRIR is the number of recordable injuries and illnesses a company had for every 100 full-time workers in a year, so that companies of different sizes can be compared.
- incident
An incident is an unplanned event at work that hurt someone or could have: a fatality, an injury, an illness or a close call.
- near miss
A near miss is an event that could have hurt someone and did not, often by luck; OSHA also calls it a close call.
In PanoraCompliance Ready (beta): Monthly work hours, recordability decisions made by people, and a scorecard across four years.