This chapter discusses evaluating occupational safety and health programs for emergency services. It describes conducting both process evaluations to analyze program procedures and outcome evaluations to compare results to goals. Process evaluations ask how program parts affect members and which parts are most/least effective. Outcome evaluations analyze injury rates, knowledge/behavior changes, and policy response over time. The fire chief or safety manager usually oversees evaluations through committees and staff. NFPA 1500 recommends external evaluations every three years to demonstrate improvement efforts. Evaluations should occur before programs begin and be continuous for process and yearly for outcomes, or when serious incidents or changes require reevaluation.