Your Form 300A, the signed summary of last year's work-related injuries and illnesses, must be on the wall no later than February 1 and stay up through April 30 (29 CFR 1904.32(b)(6)). If your establishment is covered by OSHA's electronic reporting rule, you also submit the 300A data through the Injury Tracking Application by March 2 (1904.41(c)).
For your 2026 records: post by Monday, February 1, 2027 and e-file by Tuesday, March 2, 2027.
What the 300A is, in one paragraph
The 300A is the one-page annual summary of your OSHA 300 log: total cases by outcome, total days away and restricted, case types, plus your average employee count and total hours worked for the year. No names, no case details. It exists so employees can see the establishment's injury record for the year, which is why it gets posted and the log itself does not. You can total yours in a couple of minutes with our free 300 log builder, which computes the 300A as you go.
The year-end sequence
- Review the log. Before totaling, check the year's 300 log entries for anything missing or misclassified. This review is itself a requirement (1904.32(a)(1)).
- Total the columns and add the employment numbers. The two numbers people scramble for in January are average number of employees and total hours worked. OSHA's own forms package includes a worksheet for estimating both; payroll reports get you there faster.
- Have a company executive certify it. Not just anyone can sign. See the list below.
- Post it by February 1 in each establishment, in a conspicuous spot where you customarily post employee notices, and keep it there through April 30 (1904.32(b)(5) and (b)(6)).
- E-file by March 2 if you're covered by the electronic rule. For most construction companies that means establishments with 20 to 249 employees. Our ITA guide covers who's in and how to submit.
- Take it down after April 30 and keep it. The 300A joins the log and the incident reports in your files for five years (the retention rule).
Who is allowed to sign the 300A
A company executive must certify that they examined the log and reasonably believe the summary is correct and complete. The rule (1904.32(b)(4)) names exactly four people who qualify:
- An owner of the company, if it's a sole proprietorship or partnership
- An officer of the corporation
- The highest ranking company official working at the establishment
- That official's immediate supervisor
The point of requiring an executive is that someone senior actually looks at the numbers once a year. If the office manager keeps the log, that's fine, but the signature on the wall copy belongs to the boss.
Zero injuries still means a posted 300A
A clean year doesn't skip the paperwork. If you had no recordable cases, you enter zeros in every total column and post the summary anyway (1904.32(b)(2)(i)). The only companies that skip the 300A entirely are the ones exempt from recordkeeping in the first place: 10 or fewer employees company-wide, or an exempt low-hazard industry. Construction is not one. Details in who's exempt from OSHA recordkeeping.
Missed the deadline?
Post it the day you notice, and leave it up through April 30. A late posting beats no posting, and inspectors ask for the posted summaries from prior years during document requests. If you missed the March 2 e-file, submit anyway: OSHA's Injury Tracking Application accepts late submissions through the end of the year, and a late record beats an enforcement conversation about a missing one. Recordkeeping violations are citable, so the real fix is a process where the dates can't sneak up on you again.
February on autopilot
SiteSafetyHQ totals your 300A from the log all year, chases the two payroll numbers in January, routes the executive signature, prints the wall copy, and builds an e-file export validated against OSHA's own spec. You get reminded before every date, per location.
No card, no demo call. Flat $39 to $199/mo by company size.
Quick answers
Do I post the 300 log too, or just the 300A?
Just the 300A. The log carries names and case details and never goes on the wall. The summary exists precisely so the totals can be public while the details stay in your files.
What if February 1 falls on a weekend?
The rule says post no later than February 1, with no weekend grace period written in. The practical answer: have it up during the last week of January and the question never matters.
Does the March 2 e-file apply to my company?
Only if your establishment is covered by 29 CFR 1904.41: 20 to 249 employees in a designated industry (construction is designated), or 250 and up in any industry that keeps records. Smaller establishments post the 300A on the wall but file nothing. See who must e-file.
Where exactly does it get posted?
In each establishment, in a conspicuous place where you customarily post notices to employees: the break room board, next to the labor law posters. For a construction company, that's the shop, yard, or office your crews report to, not every jobsite.
Primary sources (checked August 4, 2026): 29 CFR 1904.32 (annual summary) · 29 CFR 1904.41 (electronic submission) · 29 CFR 1904.33 (retention) · osha.gov/injuryreporting (ITA)
SiteSafetyHQ is an independent product, not affiliated with OSHA. Workflow help, not legal advice.