What OSHA form is the annual summary of a company's injuries and illnesses that is required to be posted between February 1st and April 30th?

The correct choice reflects the OSHA requirement for businesses to summarize and report their work-related injuries and illnesses each year. Form 300A is specifically designed as the annual summary that employers must complete to encapsulate the data from the OSHA Forms 300 and 301 for the entire calendar year. This summary form must be posted in a conspicuous place within the workplace from February 1st to April 30th, allowing employees easy access to this important information concerning workplace safety.

In contrast, Form 200 is an older form that has been replaced and is no longer in use under the current OSHA recordkeeping regulations. Form 300 is utilized for logging individual incidents of work-related injuries and illnesses throughout the year but is not the summary form required for posting. Form 301 is a more detailed incident report for each specific case, detailing the circumstances of a work-related injury or illness, but it too is not intended for the annual summary that is to be posted for employees' awareness. Thus, Form 300A stands out as the correct answer, serving the specific purpose mandated by OSHA.