Final answer:
Employers are required to post the Form 300A from February 1st to April 30th. This is to keep employees informed about safety and health in their workplace.
Step-by-step explanation:
Employers must post the Form 300A from February 1st to April 30th of the year following the year covered by the records. This requirement is in place to ensure that employees are informed about the workplace safety and health conditions within their workplace. Employers with more than 100 employees are also mandated to provide written notice 60 days before plant closings or large layoffs, which is a separate requirement from the Form 300A posting.
This form is related to workplace injury and illness records required by the Occupational Safety and Health Administration (OSHA). It is important for employers to comply with this requirement to ensure transparency and safety in the workplace.