Calendar
Browse compliance deadlines, industry events, and fun days by month.
April 2026
This Month's Events — April 2026
OSHA 300A Posting Begins
February 1 – April 30, 2026
Employers must post the OSHA 300A Summary of Work-Related Injuries and Illnesses in a visible location from February 1 through April 30.
Workplace Violence Awareness Month
April 1 – 30, 2026
April is dedicated to raising awareness about workplace violence prevention. Review policies, conduct training, and promote a safe work environment.
Administrative Professionals Day
Wednesday, April 22, 2026
Recognize the contributions of administrative professionals — secretaries, receptionists, and office support staff.
Workers' Memorial Day
Tuesday, April 28, 2026
International day of remembrance for workers killed, injured, or made ill by their work.
World Day for Safety and Health at Work
Tuesday, April 28, 2026
UN-recognized day promoting the prevention of occupational accidents and diseases globally.
OSHA 300A Posting Ends
Thursday, April 30, 2026
Last day the OSHA 300A Summary must remain posted. Employers may remove the summary after April 30.