Exhibit 1, 242 FW 11
Guidelines for Determining Confined Spaces

Supersedes 242 FW 11, FWM 273, 09/30/96

Date: November 13, 2007

Series: Occupational Safety and Health

Part 242: Industrial Hygiene

Originating Office: Division of Safety and Health

 

 

PDF Version


 

 

Facility Name: __________________________________________________________

 

Project Name: __________________________________________________________

 

Space: ________________________________________________________________

 

Location: ______________________________________________________________

 

Completed By: _________________________________________________________

 

Date/Time Completed: ___________________________________________________                

 

You must use the following criteria to decide if the space listed above is a confined space:  (Note: Go to 242 FW 11, section 11.3 to read a definition of confined space.)

 

_____  The space is enclosed;

 

_____  The space is large enough and is shaped so that an employee can enter and perform job tasks;

 

_____  The space has limited or restricted means to enter or exit (for example, manholes, tanks, trenches, vessels, silos, storage bins, hoppers, vaults, pits, wells, and diked areas); and

 

_____  The space is not designated for continuous occupancy.

 

If you check all 4 blanks, the space is a confined space.

 

You must use the following criteria to determine if a confined space is a permit-required confined space: (Note: Go to 242 FW 11, section 11.3B to read the definition of permit-required confined space.)

 

_____  The space contains a hazardous atmosphere or a known potential to contain a hazardous atmosphere.

 

_____  The space contains a material with the potential for engulfing an entrant (for example, grain, ore, sand, liquid, etc.). (Note: Go to 242 FW 11, section 11.7C to read the definition of engulfment.).

 

_____  The space is configured so that an entrant could be trapped or asphyxiated by inwardly converging walls, or a floor that slopes downward and tapers to a smaller cross-section.

 

_____  The space has some other recognized serious safety or health hazard.

 

If you checked any of the 4 blanks, the space is a permit-required confined space.

 


For information on the content of this chapter, contact the Division of Safety and Health. For information about this Website, contact Krista Bibb in the Division of Policy and Directives Management.  



Visit the Division of PDM Directives Home Page
Visit the U.S. Fish and Wildlife Service Home Page