OSHA 300, 300A, and 301: what each form is and who signs it

OSHA injury recordkeeping uses three forms, and they're easy to mix up. They work together but do different jobs. Here's the plain version.

Form 300 — the Log

The 300 Log is your running list of recordable work-related injuries and illnesses for the year. Each recordable case gets a row: what happened, the job title, the date, and how the case was classified (days away, restricted duty, and so on).

Think of it as the source of truth you build throughout the year.

Form 301 — the Incident Report

For each recordable case on the 300 Log, there's a 301 Incident Report with the details of that specific case. It's the per-incident backup behind each row of the log.

You can use an equivalent form (like an internal incident report or a workers' comp report) as long as it captures the same information.

Form 300A — the Summary

The 300A is the annual summary: the totals from your 300 Log rolled up into one page — total cases, days away, the breakdown by injury type, and your establishment's hours and employee count.

The 300A is the form you post in the workplace (February 1 – April 30) and, if you're covered, the one you electronically submit to OSHA's ITA by March 2.

Who signs it

Here's the part that makes RegFile possible: the 300A is certified by a company executive — an owner, an officer, or the highest-ranking on-site manager. No licensed professional, lawyer, or outside expert is required. An authorized employee reviews the summary and certifies it's correct.

That's why a service can handle the whole filing: we prepare it, you (the authorized executive) review and authorize, and we file.

How they flow together

1. Record each case on the 300 Log (with a 301 behind it) as it happens.
2. At year end, roll the log into the 300A summary.
3. Post the 300A, and electronically submit it if you're covered.

The filing checker starts with whether the filing applies. If it does, RegFile takes the log you already keep and handles steps 2 and 3 after you review and authorize.

Start the filing checker →

This is informational, not legal advice — verify against your adopted rule.