Confined Space
A confined space is an enclosed or partially enclosed area not designed for continuous human occupancy, with limited entry/exit, that may contain hazardous atmospheres, engulfment risks, or other serious hazards.
What Is a Confined Space?
A confined space meets three criteria: (1) it is large enough for a worker to enter and perform work, (2) it has limited or restricted means of entry or exit and (3) it is not designed for continuous occupancy. Examples include tanks, silos, manholes, pipelines, vessels and crawl spaces.
Confined Space Hazards
- Atmospheric: Oxygen deficiency or enrichment, toxic gases (H2S, CO), flammable/explosive atmospheres.
- Physical: Engulfment (grain, sand, water), entrapment, falling objects, temperature extremes.
- Mechanical: Uncontrolled energy from equipment (requires LOTO).
Confined Space Entry Requirements
- Hazard assessment and entry permit
- Atmospheric testing (pre-entry and continuous)
- Ventilation if necessary
- Trained entrants, attendants and entry supervisors
- Communication system between entrant and attendant
- Rescue plan and equipment (on-site rescue team or arrangement with emergency services)
Digital Confined Space Permits
Make Safety Easy digitizes confined space entry permits, atmospheric monitoring logs and rescue plans. Supervisors approve entries in real time and all documentation is stored for audit readiness.