Employers covered by Occupational Safety and Health Administration's (OSHA's) record-keeping rules must post 2022 work related injuries/illnesses in a noticeable place from February 1 to April 30. 

Employers must complete an incident report (Form 301) for each injury/illness and log work incidents on OSHA form 300.  

Recordkeeping - Overview | Occupational Safety and Health Administration (osha.gov)