OSHA Form 300A: What it is and when to post it
Last reviewed Aug 1, 2025
The OSHA Form 300A is the Summary of Work-Related Injuries and Illnesses. It rolls up a full calendar year of your OSHA 300 Log into a single, postable page (total cases, days away, restricted duty, and the injury/illness breakdown) so employees can see the workplace's safety record.
The short answer
Form 300A is the Summary of Work-Related Injuries and Illnesses: a full calendar year of the 300 Log rolled onto one postable page. Most employers with more than 10 employees must keep it, and healthcare is not among the partially exempt low-hazard industries. Total the columns, have a company executive certify the summary, and post it from February 1 through April 30, even if you had zero recordable cases. Establishments over the size and industry thresholds also submit electronically through the ITA by March 2.
Who has to complete it
Most employers with more than 10 employees must keep OSHA injury and illness records, unless they fall under a partially exempt low-hazard industry. Healthcare employers are generally not exempt.
The key deadline: February 1 – April 30
Every year you must:
- Review your 300 Log for the prior calendar year and total the columns onto the 300A.
- Have a company executive certify the summary.
- Post the 300A in a visible location from February 1 through April 30, even if you had zero recordable cases.
Separately, establishments that meet the size and industry thresholds must electronically submit their 300A (and, for some, the 300 and 301) through OSHA's Injury Tracking Application by March 2.
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Common mistakes
- Posting only the 300 Log instead of the 300A summary.
- Forgetting to post when there were no recordable injuries (you still must post a zero summary).
- Missing the executive certification.
This article is general information, not legal advice. Always confirm the current requirements against the primary source at osha.gov.
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Free OSHA tools
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