It is once again time for California employers to prepare and post their annual summary of work-related injuries and illnesses — officially known as Form 300A, the Annual Summary of Work-Related Injuries and Illnesses. Even if your business experienced zero work-related injuries or illnesses during the previous year, you’re still required to complete and post the form. Failing to comply with posting and recordkeeping requirements can result in expensive penalties.
Employers must post Form 300A by February 1, 2026, in a location that is visible and easily accessible at each worksite. The form must remain posted through April 30, 2026.
In addition to the posting requirement, the California Division of Occupational Safety and Health (Cal/OSHA) requires certain employers to submit Form 300A data electronically to the federal Occupational Safety and Health Administration (OSHA). This applies to employers with 250 or more employees (unless exempt under California Code of Regulations, Title 8, Section 14300.2), as well as employers with 20 to 249 employees in designated industries. The electronic submission deadline is March 2, 2026.
Additionally, OSHA regulations that took effect January 1, 2024, remain in place. Businesses with 100 or more employees in industries classified as “high-risk” must electronically submit not only Form 300A, but also Form 300 (Log of Work-Related Injuries and Illnesses) and Form 301 (Injury and Illness Incident Report).
To comply with Cal/OSHA requirements, employers must complete Form 300A by summarizing the previous calendar year’s injury and illness data. This includes reporting the total number of deaths; cases involving days away from work; cases involving job transfer or restriction; and all other recordable cases. Employers must also tally the total number of days away from work and days of job transfer or restriction.
The form must reflect recordable injuries and illnesses such as injuries, skin disorders, respiratory conditions, poisonings, hearing loss and other occupational illnesses.
Employees, former employees and their authorized representatives have the right to review Form 300A in its entirety.
It’s also important to remember that employers should not post the full Form 300 log, which contains sensitive personal information that should not be publicly disclosed.
Talia DeMello, Legal Editor, CalChamber
CalChamber members can find additional guidance on filing and posting requirements in Recording Work-Related Injuries and Illnesses in the HR Library and use the Log 300 Wizard to help navigate the complex compliance rules. Not a member? Learn how a CalChamber membership can help power your business.
