EWT - Enclosed Spaces

Learning objectives

  • Accurately distinguish a 1910.269-governed "enclosed space" from a 1910.146-governed "confined space" with potential entry-permit requirements.
  • Select OSHA-mandated safe work practices for enclosed spaces, including: inspection/testing for hazards; rescue precautions; and prudent entry.
  • Select appropriate ventilation and/or monitoring practices to maintain a safe atmosphere in an enclosed space.

Course overview

This lesson covers: determining whether a restricted workspace qualifies as an "enclosed space," versus a "confined space" that is governed by the more stringent 29 CFR 1910.146 standard; testing, rescue, and safe work practices required for working in tight spaces; and methods for ventilating such spaces to prevent or clear unsafe atmospheres (meaning, gas mixes that are oxygen-deficient, oxygen-enriched, flammable, or toxic).


The individuals involved in the development and promotion of this course do not receive any compensation or financial benefits outside of their regular employment for their work on this course.


  • 20 minutes
  • Format: Online Interactive
  • Tier: 3
  • Course ID: 143
Language Icon English
Course Outline
  • Introduction
  • Enclosed versus Confined Spaces
  • Preparing to Work Safely in an Enclosed Space
  • Ensuring Air Safety
Regulations
  • 29 CFR 1910 Subpart I - Personal Protective Equipment - 1910.134 - Respiratory Protection
  • 29 CFR 1910 Subpart J - General Environmental Controls - 1910.146 Appendix D - Confined Space Pre-Entry Check List
  • 29 CFR 1910 Subpart J - General Environmental Controls - 1910.146 Permit-required confined spaces
  • 29 CFR 1910 Subpart R - Special Industries - 1910.269(e) Electric power generation, transmission, and distribution
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