This document discusses occupational health and safety standards in the Philippines. It establishes the Occupational Safety and Health Center through Executive Order No. 307 to implement occupational safety and health programs. The main objectives are to prevent work-related injuries, illnesses, and deaths, and promote worker health and efficiency. The document also defines hazards and risks, and classifies them as dormant, armed, or active. It identifies five main types of hazards: biological, chemical, mechanical, physical, and ergonomic.