This document discusses integrated management systems (IMS), which integrate quality, environmental, and safety management systems into a single framework. An IMS allows an organization to work as a unified system toward shared objectives. The document outlines the common requirements and elements of ISO 9001, ISO 14001, and OHSAS 18001, and explains how integrating these systems can simplify processes and reduce costs. Implementing an IMS follows the PDCA (plan-do-check-act) cycle. Benefits include consistent objectives, reduced auditing and documentation, and easier management and evaluation across all related systems.