Each year, employers covered by OSHA’s injury and illness recordkeeping requirements must complete and post OSHA Form 300A, the Summary of Work-Related Injuries and Illnesses. Missing the deadline or posting incorrect information can expose employers to citations, penalties, and unnecessary risk.
Below is a clear breakdown of what OSHA Form 300A is, who must post it, key deadlines, and how employers can stay compliant.
What Is OSHA Form 300A?
OSHA Form 300A is an annual summary of all recordable work-related injuries and illnesses that occurred during the previous calendar year. The information on Form 300A comes directly from OSHA Form 300, which is used to log recordable incidents throughout the year.
Unlike Form 300, Form 300A does not include employee names and is intended to be shared with employees.
When Does OSHA Form 300A Need to Be Posted?
Employers required to maintain OSHA injury and illness records must post Form 300A during the following window:
- Posting period: February 1 through April 30
- Posting location: A place easily accessible to employees, such as a break room, jobsite trailer, or other common area
Employers must ensure the form remains posted for the entire posting period.
Who Is Required to Post OSHA Form 300A?
Generally, employers that are required to maintain OSHA injury and illness records must also post Form 300A. Some employers may be partially exempt based on company size or industry classification.
If you are unsure whether your organization is required to maintain OSHA records, it is important to confirm your status before assuming you are exempt.
OSHA Electronic Submission Requirements for Construction Employers
In addition to posting Form 300A, some employers are required to electronically submit injury and illness data to OSHA under the agency’s Improve Tracking of Workplace Injuries and Illnesses regulation.
For construction employers:
- Establishments with 20–249 employees must electronically submit their 2025 Form 300A Annual Summary to OSHA by March 2, 2026
- Establishments with 100 or more employees must electronically submit Forms 300, 300A, and 301
Failure to submit required data electronically can result in citations and penalties.
How Long Must OSHA Injury and Illness Records Be Kept?
OSHA requires injury and illness records to be maintained for at least five years following the end of the calendar year they cover.
Employers must also provide copies of these records to current or former employees, or their authorized representatives, upon request.
Common OSHA 300A Compliance Mistakes
Some of the most common issues employers face include:
- Posting Form 300A late or not at all
- Posting an incomplete or inaccurate summary
- Failing to electronically submit required data
- Incorrectly determining exemption status
- Inconsistencies between Forms 300, 300A, and 301
These errors are often discovered during OSHA inspections or following workplace incidents.
Employers who take time each year to review their OSHA injury and illness records, confirm posting and electronic submission requirements, and address discrepancies early are better positioned to reduce compliance risk and avoid issues during inspections or audits.
Link to forms: https://www.osha.gov/recordkeeping/forms
How STC Can Help
STC Safety & Risk Management helps employers review OSHA logs, confirm accuracy, and ensure compliance with posting and electronic submission requirements while reducing risk and administrative burden.
If you’re unsure whether your Form 300A is accurate or whether electronic submission applies to your organization, STC offers a free OSHA log review to help identify potential issues before they become problems.
👉 Contact STC today to schedule a free review of your OSHA 300 logs.
OSHA Form 300A compliance is an annual requirement, but it doesn’t have to be stressful. Understanding the rules, deadlines, and requirements—and having the right support—can help reduce risk and keep your organization compliant.
