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Subchapter 7. General Industry Safety Orders
Group 16. Control of Hazardous Substances
Article 108. Confined Spaces
Group 16. Control of Hazardous Substances
Article 108. Confined Spaces
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§5157. Permit-Required Confined Spaces, Appendix A - Permit-Required Confined Space Decision Flow Chart
§5157. Permit-Required Confined Spaces, Appendix
A - Permit-Required Confined Space Decision Flow Chart ( 
.pdf,
size=49kb)
_____________________________
| |
| Does the workplace contain |
| Confined Spaces as defined NO ----------------------
| by Section 5157(b)? | |
| | |
|___________ YES _____________| |
| |
| |
____________ V ______________ |
| | _________ V ______
| Does the workplace contain | | |
| Permit-required Confined | | Consult other |
| Spaces as defined by NO --------- > applicable |
| Section 5157(b)? | | OSHA standards. |
| | | |
|___________ YES _____________| |_____ STOP _______|
|
|
________ V ___________
| |
| Inform employees as |
| required by |
| Section 5157(c)(2). |
| | _____________________________
|______________________| | |
| | Prevent employees entry as |
________ V ___________ | required by Section 5157 |
| | | (c)(3). Do task from |
| Will permit NO -- > outside of space. |
| spaces be entered? | |_____________________________|
| |
|_______ YES __________|
|
________ V _______ ________________________________
| | | |
| Will contractors | | Task will be done by |
-- > enter? YES --- > contractors' employees. Inform |
| | | | contractor as requited by |
| |________ NO ______| | Section 5157(c)(8)(i), (ii) |
| | | and (iii). Contractor obtains |
| | | information required by |
| | | Section 5157(c)(9)(i), (ii) |
| | | and (iii) from host. |
| | |________________________________|
| | |
| | ___________ V ___________________
| | | |
| | | Both contractors and host |
| | | employees will enter the space? NO >
| | | | |
| | |_______ YES _____________________| |
| | | |
| ___________ V _______ ____________ V _______________________ |
| | | | | |
| | Will host employees | | Coordinate entry operations as | |
| | enter to perform | |required by Section 5157(c)(8)(iv) and|->|
| | entry tasks? | | (d)(11).Prevent unauthorized entry | |
| | | |______________________________________| |
| |____ YES ________NO _| |
| | | ______________________________ |
| | | | | |
| | -----> Prevent unauthorized entry. STOP |
| | |______________________________| |
| | |
| |<---------------------------------------------------------
| |
| _____ V ________________ _________________________________
| | | | |
| | Does space have known | | Not a permit-required confined |
| | or potential hazards? NO--> space. 5157 does not apply. |
| | | | Consult other OSHA standards. |
| |______ YES _____________| |_________________________________|
| |
| | _________________________
| _______ V_____________ | |
| | | | Employer may choose to |
| | Can the hazards be YES----> reclassify space to |
| | eliminated? | | non-permit required STOP(1)
| | | | confined space using |
| |_______ NO ___________| | Section 5157(c)(7). |
| | |_________________________|
| |
| ________ V ___________________
| | | __________________
| | Can the space be maintained | | |
| | in a condition safe to YES---> Space may be |
| | enter by continuous forced | | entered under STOP(1)
| | air ventilation only? | | 5157(c)(5). |
| | | |__________________|
| |_______ NO ___________________|
| |
| |
| ________ V ______________
| | |
| | Prepare for entry via |
| | permit procedures. |
| |_________________________|
| |
| | ____________________
| ________ V ________________ | |
| | | | Permit not valid |
| | Verify acceptable entry NO--> until conditions |
| | conditions (test results | | meet permit |
| | recorded, space isolated | | specifications. |
| | if needed, rescuers/means | |____________________|
| | to summon available, |
| | entrants properly |
| | equipped, etc.) |
| | |
| |_______ YES _______________|
| |
| |
| ________ V ___________________ ______________________________
| | | | |
| | Permit issued by authorizing | | Emergency exists (prohibited |
| | signature. Acceptable entry NO---> condition). Entrants |
| | conditions maintained | | evacuated entry aborts. |
| | throughout entry. | | (Call rescuers if needed). |
| | | | Permit is void. Reevaluate |
| |________ YES _________________| | program to correct/prevent |
| | | prohibited condition. |
| | | Occurrence of emergency |
| _________ V ___________________ | (usually) is proof of |
| | | | deficient program. No |
| | Entry tasks completed. | | re-entry until program |
| | Permit returned and canceled. | | (and permit) is amended. |
| |_______________________________| | (May require new program.) |
| | | |
| | |____ CONTINUE ________________|
| _________ V _____________________ |
| | | |
| | Audit permit program and permit | |
| | based on evaluation of entry by | |
| | entrants, attendants, testers | |
| | and preparers, etc. | |
| |_________________________________| |
| |
|______________________________________________|
(1) Spaces may have to be evacuated and re-evaluated if hazards arise during entry.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
HISTORY
1. New Appendix A filed 11-24-93; operative 12-24-93 (Register 93, No. 48).
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