How to Post Requirements for an OSHA 300A Log

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An OSHA 300 log contains information about serious work-related illness and injuries. Form 300-A is used to summarize the data and meet posting requirements.

An Occupational Safety and Health Administration 300 log contains information about recordable workplace illness and injuries. Employers use it to comply with OSHA record-keeping requirements as outlined in 29 CFR Part 1904 and as a tool for evaluating how well current health and safety programs are serving the company.

OSHA regulations also require that most employers with more than 10 employees inform current and former employees, employee representatives and the public about how well the company is doing by posting a Form 300-A summary report.

Form 300 vs. Form 300-A

OSHA Form 300 log entries usually identify an ill or injured employee by name and job title. While this information is important for an employer, employees, employee representatives and the public don't need and shouldn't have access to this private information.

Form 300-A organizes essential data in a summary format. It identifies what occurred throughout the previous year without mentioning to whom it happened.

Posting Requirements

  • OSHA regulations say that employers must post Form 300-A for the previous calendar year from Feb. 1 through April 30 of the current year in a public area in the workplace. For example, the summary form for 2014 must be posted from Feb. 1 through April 30, 2105, in an area such as the lunchroom, break area or a common meeting room.
  • Off-site employees must receive a hard copy of the summary.
  • A copy of the summary must be made available to interested parties and the public on request.
  • Reporting data, including both the 300 log and Form 300-A, must be held for five years after the posting period expires. During this time, Form 300-A must be made available to OSHA inspectors, employees and the public on request. 


About the Author

Based in Green Bay, Wisc., Jackie Lohrey has been writing professionally since 2009. In addition to writing web content and training manuals for small business clients and nonprofit organizations, including ERA Realtors and the Bay Area Humane Society, Lohrey also works as a finance data analyst for a global business outsourcing company.