Revised on
01/26/17 03:03pm
SafetyNet #

Confined Space Program

Contact information

The UC Davis Confined Space Entry Program is coordinated by EH&S in accordance with the regulations set forth in California Code of Regulations, Title 8, Sections 5156 to 5158. Program requirements are outlined in the Confined Space Entry Program Employee Guide. All confined space work on campus must strictly adhere to the guidelines set forth within this document.

Prior to conducting any confined space work on campus, departments must have a written confined space policy in place, properly trained employees that will work in and around confined spaces, and appropriate calibrated instrumentation.

Cal-OSHA defines a confined space as a space that has all of the three following characteristics:

  • Large enough and configured such that an employee can enter and perform work
  • Limited openings for entry and exit
  • Not designed for continuous occupancy

Two main categories of hazards associated with confined spaces are atmospheric hazards and physical hazards. Atmospheric hazards typically involve problems with the air in the space, i.e. lack of oxygen, the presence of other gasses in the space, insufficient ventilation, etc. Physical hazards are those caused either by equipment (rotors, sparks, moving machinery, energized systems, etc.) or by other dangerous conditions (slippery surfaces, heat, noise, lighting, vermin, insects, etc.).

Examples of confined spaces include silos, tanks, vats, boilers, ducts, sewers, manholes, pipelines, vaults, bins, tubs, excavations, trenches, pits, wet wells, fireboxes, boxcars, and other confining structures.

Information Resources

  1. EH&S Confined Space Entry Program Employee Guide
  2. UCD Policy & Procedure Manual Section 290-86 - Hazardous Operations
  3. Cal-OSHA – “Confined Space Guide: Is It Safe To Enter A Confined Space?”