This document discusses occupational safety and health management systems (OSH-MS). It defines a system as components that work together for a purpose. An OSH-MS has components like plans, implementation, and arrangements that work to ensure worker safety and health and regulatory compliance. The document outlines typical OSH-MS elements like policy, planning, implementation, checking and corrective action. It also describes two common OSH-MS standards, OHSAS 18001 and MS1722:2003, which are based on plan-do-check-act components.