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Question

What is a confined space?

Answer
By Bob Henderson | Last updated: April 21, 2019
Presented by GfG Instrumentation

What is a confined space?

According to 29 CFR 1910.146, a confined space is characterized by the simultaneous existence of three conditions:

  1. It must be large enough and so configured that it is possible for a person to bodily enter and perform work
  2. It has limited or restricted means of entry and exit
  3. It is not designed for continuous employee occupancy

Confined spaces include everything from railroad tank cars, to sewers, boilers, open topped pits, aircraft wing tanks, fuel storage tanks, vaults, manholes, elevator pits, and many other common workplace environments.

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Just because a space meets the basic confined space definition, however, doesn’t automatically trigger any special workplace procedures beyond those for similar activities undertaken in any other non-confined space environments. Non-permit confined spaces are by definition not associated with any additional serious safety hazards (learn more in Confined Spaces: Standards and Guidelines to Know).

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OSHA Standards Confined Space Lockout Tagout (LOTO)

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Written by Bob Henderson | President

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Bob Henderson is President of GfG Instrumentation, Inc. in Ann Arbor, Michigan.Robert has been a member of the American Industrial Hygiene Association since 1992. He is an active member of the AIHA Real Time Detection Systems Technical Committee, and the AIHA Confined Spaces Committee. He is also a past chair of the Instrument Products Group of the International Safety Equipment Association. Robert has over 37 years of experience in the design, sale and marketing of atmospheric monitoring instruments used in confined space, industrial safety, and industrial hygiene monitoring applications.

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