OSHA-300A: Summary of Work-Related Injuries and Illnesses
The OSHA-300A is a mandatory federal document used to summarize all recordable workplace injuries and illnesses from the previous calendar year. Even if your company operates a safe environment with zero incidents, you may still be required to complete, sign, and post this form.
What Exactly Is This Form?
While the OSHA 300 Log is used to record individual incidents as they happen, the OSHA-300A acts as your annual summary. It strips away the personal identifying information of injured employees and simply presents the total numbers: how many incidents occurred, how many days were missed, and what types of injuries were sustained.
The primary purpose of this form is transparency. By posting it in a visible area of your workplace, you ensure that your employees are aware of the safety record of the facility. For example, a manufacturing plant would use this form to show workers exactly how many respiratory conditions or hearing loss incidents were recorded during the year.
Who Must File the OSHA-300A?
Generally, employers with 10 or more employees at any point during the previous calendar year must maintain OSHA records and post the OSHA-300A. This includes full-time, part-time, temporary, and seasonal workers.
However, there is an exemption for certain low-hazard industries. Businesses like retail clothing stores, dental offices, and insurance agencies are typically exempt from keeping these records unless specifically asked to do so in writing by OSHA or the Bureau of Labor Statistics (BLS). If your business is in a high-hazard industry (like construction, manufacturing, or healthcare), you must complete this form regardless of whether any injuries actually occurred.
Detailed Form Walkthrough
Completing the OSHA-300A requires you to transfer totals from your OSHA 300 Log. Here is a breakdown of the major sections:
Establishment Information
You must provide the specific name and address of the physical establishment, as well as a brief description of the industry and your North American Industry Classification System (NAICS) code. If you have multiple physical locations, you typically need a separate OSHA-300A for each one.
Employment Information
This tricky section asks for your annual average number of employees and the total hours worked by all employees last year. You cannot simply guess these numbers; they must be calculated using your payroll records. Exclude vacation, sick leave, and holidays when calculating total hours worked.
Totals and Injury Types
Here, you will input the total number of deaths, cases with days away from work, and cases with job transfers or restrictions. You will also break down the incidents by type: injuries, skin disorders, respiratory conditions, poisonings, hearing loss, and all other illnesses. If you had no incidents, you must enter "0" in every field. Do not leave them blank.
Deadlines and Filing Rules
The physical copy of the OSHA-300A must be posted in a conspicuous place in your workplace (like a breakroom bulletin board) from February 1 to April 30 of the year following the year covered by the form. Additionally, certain employers (based on size and industry) must electronically submit their 300A data to OSHA's Injury Tracking Application (ITA) by March 2. Always check with Occupational Safety and Health Administration (OSHA) for the current year's deadline.
What to Have Ready Before Starting
- Your completed OSHA 300 Log for the previous calendar year.
- Payroll records to accurately calculate the average number of employees and total hours worked.
- Your company's 6-digit NAICS code.
- The contact information and title of the company executive who will certify the form.
Form Preview & Required Fields
When generating your document, you will be asked to provide your establishment details. Here is an example of the required data structure:
| Establishment Name: | [Establishment Name] | NAICS Code: | [NAICS Code] |
| Average Employees: | [Average Employees] | Total Hours Worked: | [Total Hours Worked] |
SIGNATURES
The OSHA-300A cannot be signed by just anyone. It must be certified by a company executive, which OSHA strictly defines as an owner, officer of the corporation, highest-ranking company official working at the establishment, or their immediate supervisor.
COMPANY EXECUTIVE CERTIFICATION:
Signature: [Executive Signature]
Title: [Executive Title]
Date: [Date]
How to Fill Out OSHA-300A on AmendSign
- Enter Your Data: Input your establishment details, NAICS code, and employment averages into our secure online form.
- Transfer Log Totals: Copy the total incident numbers directly from your OSHA 300 Log.
- Review and Sign: Ensure all fields are complete (using "0" where applicable) and have your company executive electronically sign the certification.
- Download and Post: Export your finalized PDF. Print a copy to post in your workplace by February 1st.
Frequently Asked Questions
Yes. If your business is required to keep OSHA records, you must complete, certify, and post the OSHA-300A even if there were zero recordable injuries or illnesses. Simply enter "0" in the total fields.
Who qualifies as a "company executive" to sign the form?OSHA restricts who can certify the form. It must be an owner of the company, an officer of the corporation, the highest-ranking company official working at the establishment, or the immediate supervisor of the highest-ranking official at the establishment. An HR manager or safety director cannot sign it unless they also hold one of those specific executive titles.
What happens if I forget to post the OSHA-300A?Failure to post the OSHA-300A from February 1 through April 30 is a violation of OSHA recordkeeping regulations. If an OSHA inspector visits your facility during this time and the form is missing, you could face citations and financial penalties.
Do I need to mail this form to OSHA?Do not mail paper copies to OSHA. However, depending on your industry and whether you have 20-249 employees (in certain high-hazard industries) or 250+ employees, you may be required to submit your 300A data electronically via OSHA's Injury Tracking Application (ITA) by March 2.
What is the difference between the OSHA 300 Log and the OSHA-300A?The OSHA 300 Log is a detailed, running list of individual injuries and illnesses recorded throughout the year, including employee names. The OSHA-300A is the annual summary of that log, showing only the total numbers and omitting personal employee information so it can be safely posted publicly in the workplace.