OSHA's mission is to assure the safety and health of America's working men and women by promulgating and enforcing standards and regulations; providing training, outreach, and education; establishing partnerships; and encouraging continual improvement in workplace safety and health as well as the development of comprehensive safety and health management systems. Effective and efficient use of resources requires careful, flexible planning. In this way, the overall goal of hazard abatement and employee protection is best served. This instruction replaces the Compliance Safety and Health Officer (CSHO) Medical Examination Program and establishes the OSHA Medical Examination Program. This instruction revises the scope of employees covered by the OSHA Medical Examination Program and revises program elements to better match the occupational needs of covered employees. The frequency requirement for the periodic medical history and physical examination is modified and an Interim Medical Evaluation is created to assess fitness-for-duty in years an employee is not scheduled for a Periodic Physical Examination.