This document provides guidance on confined space safety programs. It discusses when entry permits are required for confined spaces and outlines the key elements of a confined space program, including: establishing program goals and responsibilities; inventorying permit spaces; implementing entry procedures; conducting atmospheric testing and monitoring; using lockout/tagout procedures; and establishing rescue procedures. The guidance stresses proper training of all personnel, continuous atmospheric monitoring during entry, use of safety labels, and periodic re-evaluation of permit space conditions and the confined space program.