Confined Space Safety Program


Confined Space Safety Program

Table of Contents

  1. Introduction
  2. Purpose
  3. Definitions
  4. Scope
  5. Hazards
  6. General (personal guidelines)
  7. Procedures for confined space entry
  8. Responsibilities
  9. Pre-entry
  10. Issuance/reviewing of permit
  11. Termination and closing or cancelling of permits
  12. Precautions
  13. Multiple employer procedure
  14. Emergency and rescue
  15. Permit-required confined space rescue:
  16. Non-entry rescue
  17. Training
  18. Summary
  19. Safety watch instructions
  20. Requirements of the safety watch

Confined Space Safety Program

Chapter Section


The hazards commonly encountered in a confined space include:

  1. Toxic vapors in unhealthy or fatal concentrations may result from residue of known or unknown material in a vessel, tank, or pit by gradual release from sludge or scale. The vapors may be introduced to leakage from interconnected systems, or be introduced by use of cleaning solvents, welding, cutting, etc.
  2. Flammable gases or dust with the potential of fire or explosion.
  3. Lack of oxygen causing asphyxiation may result from chemicals absorbing or replacing oxygen in the space, or from inert gases used to exclude oxygen from a specific area of work. Air in clean enclosures closed for an extended period may become deficient in oxygen because of oxidation of the metal of the tank.  Improper or inadequate ventilation during work may also result in a lack of oxygen.
  4. Electrical shock from portable lights, tools or associated electrical equipment.
  5. Injury from mechanical equipment that may be defective or inadvertently or incorrectly operated.
  6. Injury from physical hazards such as slipping, tripping or falling from elevated work areas, platforms, scaffolding, or ladders. Falling objects such as debris created during tearout or storage of tools and equipment that are not properly stored in elevated work areas.