The OSHA Log 300 "Summary of Work-Related Injuries and Illnesses" must be posted by all businesses by Feb. 1, 2013, and kept up until April 30, 2013.

The posting must be certified by the owner or highest-ranking official at the site, and each year's Log 300 must be retained on file for five years following the end of the calendar year it covers.

Struggling with OSHA compliance in general? Try our Workplace Safety Manager Bundle. This program will lead you step by step through every level of compliance with the Occupational Safety and Health Act and its many regulations.