#	Federal Register
1	08/30/2024 - 1910.146 - 89:70698-71073 - Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings; Proposed Rule - PDF
2	07/16/2024 - 1910.146, 1910.146(c)(2), 1910.146(c)(4), 1910.146(c)(5)(i)(A), 1910.146(c)(5)(i)(C), 1910.146(c)(5)(i)(E), 1910.146(c)(5)(ii), 1910.146(c)(5)(ii)(H), 1910.146(d)(5)(vi), 1910.146(c)(7)(iii), 1910.146(c)(8)(i), 1910.146(c)(8)(ii), 1910.146(c)(8)(iii), 1910.146(c)(8)(v), 1910.146(c)(9)(iii), 1910.146(d), 1910.146(d)(3), 1910.146(d)(14), 1910.146(e)(1), 1910.146(e)(3), 1910.146(f), 1910.146(g)(1), 1910.146(g)(3), 1910.146(g)(4), 1910.146(h)(4), 1910.146(h)(4)(i), 1910.146(h)(4)(ii), 1910.146(i)(5), 1910.146(i)(6)(i), 1910.146(i)(6)(ii), 1910.146(i)(6)(iii), 1910.146(i)(6)(iv), 1910.146(i)(7), 1910.146(i)(8), 1910.146(i)(8)(i), 1910.146(i)(8)(ii), 1910.146(i)(8)(iii), 1910.146(j)(2), 1910.146(k)(1)(i), 1910.146(k)(1)(ii), 1910.146(k)(1)(iv), 1910.146(k)(1)(v), 1910.146(k)(4), 1910.146(l)(1), 1910.146(l)(2) - 89:57944-57946 - Permit-Required Confined Spaces Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
3	02/05/2024 - 1910.146 - 89:7774-8023 - Emergency Response Standard; Proposed Rule - PDF
4	06/23/2021 - 1910.146, 1910.146(c)(2), 1910.146(c)(4), 1910.146(d), 1910.146(c)(5)(i)(E), 1910.146(c)(5)(i)(A), 1910.146(c)(5)(i)(B), 1910.146(c)(5)(i)(C), 1910.146(c)(5)(ii), 1910.146(c)(5)(ii)(H), 1910.146(c)(7)(iii), 1910.146(c)(8)(i), 1910.146(c)(8)(ii), 1910.146(c)(8)(iii), 1910.146(c)(8)(v), 1910.146(c)(9)(iii), 1910.146(d)(3), 1910.146(d)(5)(vi), 1910.146(d)(14), 1910.146(e)(1), 1910.146(e)(3), 1910.146(e)(6), 1910.146(f), 1910.146(g)(1), 1910.146(g)(3), 1910.146(g)(4), 1910.146(h)(3), 1910.146(h)(4), 1910.146(l)(6), 1910.146(h)(4)(i), 1910.146(h)(4)(ii), 1910.146(i)(5), 1910.146(i)(6)(i), 1910.146(i)(6)(ii), 1910.146(i)(6)(iii), 1910.146(i)(6)(iv), 1910.146(i)(7), 1910.146(i)(8), 1910.146(i)(8)(i), 1910.146(i)(8)(ii), 1910.146(i)(8)(iii), 1910.146(j)(2), 1910.146(k)(1)(i), 1910.146(k)(1)(ii), 1910.146(k)(1)(iv), 1910.146(k)(1)(v), 1910.146(k)(4), 1910.146(l)(1), 1910.146(l)(2) - 86:32978-32980 - Permit-Required Confined Spaces; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
5	04/28/2021 - 1910.146, 1910.146(b), 1910.146(d)(3)(iii) - 86:22458-22466 - STP Nuclear Operating Company; Grant of Permanent Variance - PDF
6	09/01/2020 - 1910.146, 1910.146(b), 1910.146(d)(3)(iii) - 85:54424-54432 - STP Nuclear Operating Company; Application for Permanent Variance and Interim Order; Grant of Interim Order; Request for Comments - PDF
7	10/25/2019 - 1910.146 - 84:57487-57488 - Agency Information Collection Activities: Announcement of the Office of Management and Budget (OMB) Control Numbers Under the Paperwork Reduction Act - PDF
8	11/12/2015 - 1910.146 - 80:69984-69985 - Agency Information Collection Activities: Announcement of the Office of Management and Budget Control Numbers Under the Paperwork Reduction Act - PDF
9	06/30/2015 - 1910.146 - 80:37310-37311 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Permit-Required Confined Spaces in General Industry Standard - PDF
10	06/11/2015 - 1910.146 - 80:33294-33296 - Unified Agenda of Regulatory and Deregulatory Actions - PDF
11	05/04/2015 - 1910.146 - 80:25365-25526 - Confined Spaces in Construction; Final Rule - PDF
12	04/27/2015 - 1910.146, 1910.146(c)(2), 1910.146(c)(4), 1910.146(c)(5)(i)(E), 1910.146(c)(7)(iii), 1910.146(c)(8)(i), 1910.146(c)(8)(ii), 1910.146(c)(8)(iii), 1910.146(c)(8)(v), 1910.146(c)(9)(iii), 1910.146(d), 1910.146(d)(5)(vi), 1910.146(d)(14), 1910.146(e)(1), 1910.146(g)(1), 1910.146(g)(2), 1910.146(g)(3), 1910.146(g)(4), 1910.146(h)(3), 1910.146(h)(4), 1910.146(i)(5), 1910.146(i)(6)(i), 1910.146(i)(6)(ii), 1910.146(i)(6)(iii), 1910.146(i)(6)(iv), 1910.146(i)(7), 1910.146(i)(8), 1910.146(i)(8)(i), 1910.146(j)(2), 1910.146(k)(1)(i), 1910.146(k)(1)(ii), 1910.146(k)(1)(iv), 1910.146(k)(1)(v), 1910.146(k)(4), 1910.146(l)(1), 1910.146(l)(2), 1910.146(l)(6) - 80:23297-23300 - Permit-Required Confined Spaces; Extension of the Office of Management and Budget's (OMB) Approval of Collection of Information (Paperwork) Requirements - PDF
13	12/22/2014 - 1910.146 - 79:76745-76749 - Semiannual Regulatory Agenda - PDF
14	06/13/2014 - 1910.146 - 79:34083-34088 - Semiannual Regulatory Agenda - PDF
15	01/07/2014 - 1910.146 - 79:1184-1189 - Semiannual Agenda of Regulations - PDF
16	03/20/2012 - 1910.146 - 77:16265 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Permit-Required Confined Spaces Standard - PDF
17	02/13/2012 - 1910.146 - 77:7974-7977 - Semiannual Regulatory Agenda - PDF
18	12/14/2011 - 1910.146 - 76:77850-77852 - Permit-Required Confined Spaces; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
19	12/20/2010 - 1910.146 - 75:79804-79805 - Semiannual Regulatory Agenda - PDF
20	12/07/2009 - 1910.146 - 74:64462-64467 - Rules of Procedure; Regulations Implementing the Government in the Sunshine Act; Implementation of the Equal Access to Justice Act in Proceedings Before the Occupational Safety and Health Review Commission - PDF
21	05/11/2009 - 1910.146 - 71:21962-21968 - Semiannual Regulatory Agenda - PDF
22	11/24/2008 - 1910.146 - 71:71396-71400 - Semiannual Regulatory Agenda - PDF
23	11/10/2008 - 1910.146 - 73:66683-66685 - Permit-Required Confined Spaces; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
24	10/29/2008 - 1910.146 - 73:64202-64205 - Electrical Standard; Clarifications; Corrections - PDF
25	05/05/2008 - 1910.146 - 71:24720-24725 - Semiannual Regulatory Agenda - PDF
26	11/02/2005 - 1910.146 - 70:66468-66469 - Submission for OMB Review: Comment Request - PDF
27	08/31/2005 - 1910.146 - 70:51849-51851 - Permit-Required Confined Spaces; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - PDF
28	09/06/2002 - 1910.146 - 67:57035-57036 - Submission for OMB Review; Comment Request - PDF
29	06/28/2002 - 1910.146 - 67:43686-43687 - Standard on Permit-Required Confined Spaces; Extension of the Office of Management and Budget's Approval of Information-Collection (Paperwork) Requirements - PDF
30	02/21/2002 - 1910.146 - 67:8041-8046 - OSHA Training Institute Education Centers - PDF
31	10/22/1999 - 1910.146 - 64:57128 - Permit-Required Confined Spaces for General Industry;Agency Information Collection Activities; Announcement of Office of Management and Budget's (OMB) Approval of Information Collection Requirements - PDF
32	04/16/1999 - 1910.146 - 64:18938-18939 - Permit-Required Confined Spaces (29 CFR 1910.146); Information Collection Requirements. - PDF
33	01/04/1999 - 1910.146 - 64:204 - Permit-Required Confined Spaces. - PDF
34	12/01/1998 - 1910.146 - 63:66018-66036 - Permit-Required Confined Spaces. - PDF
35	12/01/1997 - 1910.146 - 62:63563 - Permit-Required Confined Spaces (29 CFR 1910.146);Announcement of OMB Approval of Information Collection Requirements - PDF
36	09/12/1997 - 1910.146 - 62:48110-48111 - Submission for OMB Review; Comment Request - PDF
37	01/25/1996 - 1910.146 - 61:2267-2268 - Proposed Information Collection Request Submitted for Public Comment and Recommendations; Permit-Required Confined Spaces - PDF
38	05/19/1994 - 1910.146 - 59:26114-26116 - Confined Spaces, Permit-Required
39	10/05/1993 - 1910.146 - 58:51885-51887 - Iowa State Standards; Approval.
40	06/29/1993 - 1910.146 - 58:34844-34851 - Permit-Required Confined Spaces; Correction
41	01/14/1993 - 1910.146 - 58:4462 - Permit-Required Confined Spaces; Final Rule, 1910.146 - PDF
42	10/10/1989 - 1910.146 - 54:41461-41464 - Permit Required Confined Spaces; Public Hearings; Proposed Rulemaking
43	07/21/1989 - 1910.146 - 54:30557 - Confined Space, Permit Required; Extension of Comment Period
44	06/05/1989 - 1910.146 - 54:24080-110 - Confined Spaces, Permit Required

#	Letters of Interpretation
1	11/03/2023 - 1910.146, 1910.146(d)(5), 1910.146(d)(14), 1910.146(e)(6) - Retention of atmospheric monitoring records for a permit-required confined space
2	03/29/2023 - 1910.146 - Application of OSHA standards when an employer is using the "Focused Electrode Leak Locator" (FELL)
3	05/20/2019 - 1910.146 - Definition of Confined Space, as it may apply to large product heating and aging furnaces
4	08/02/2012 - 1910.146 - Clarification of OSHA training requirements for basic first aid and cardiopulmonary resuscitation (CPR).
5	11/21/2011 - 1910.146 - Retrieval Lines Tied to Rescuers Entering a Confined Space
6	05/12/2009 - 1910.146, 1910.146(c)(4), 1910.146(c)(9), 1910.146(d), 1910.146(d)(5) - Applicability of the PRCS standard to aircraft maintenance activities.
7	05/23/2008 - 1910.146, 1910.146(k)(1) - Employer selection of local fire department as its off-site rescue service for compliance with 29 CFR 1910.146(k)(1).
8	03/05/2008 - 1910.146 - Determining whether an aircraft fuel tank is considered a confined space.
9	08/06/2007 - 1910.146, 1910.146(c)(7), 1910.146(d)(3) - Whether reclassification is available for permit-required confined spaces with potentially hazardous atmospheres.
10	05/31/2007 - 1910.146 - Use of feasible engineering/work practice controls for exposure to Cr(VI) for welding in confined spaces; housekeeping and disposal of large/bulky waste materials.
11	04/18/2007 - 1910.146 - PRCS and LOTO requirements for accumulation of stored energy in steam pits
12	11/21/2006 - 1910.146 - Qualifications required under 1910.269 for entry into manholes/vaults to perform work on energized conductors.
13	09/21/2006 - 1910.146, 1910.146(c)(2), 1910.146(c)(3), 1910.146(c)(8), 1910.146(d)(3) - Requirements for developing entry procedures for permit-required confined spaces.
14	07/10/2006 - 1910.146, 1910.146(c)(5) - Construction of aboveground storage tanks and confined space; §§1926.21(b)(6) and 1910.146; General duty clause
15	11/01/2005 - 1910.146 - CPR training is a required element in some OSHA general industry standards.
16	03/08/2005 - 1910.146 - Evaluation of a box van of a truck carrying hazardous materials meeting the definition of a confined space in a hazardous material release/response situation.
17	02/08/2005 - 1910.146, 1910.146(c)(2) - Questions regarding the Permit-Required Confined Space standard, 1910.146, and the Grain Handling standard, 1910.272.
18	11/18/2003 - 1910.146 - Clarification of maintenance vs. construction activities; standards applicable to the removal and replacement of steel tanks and structural steel supports.
19	06/13/2003 - 1910.146 - Response to Edison Electric Institute's concerns regarding draft Instruction CPL 2-1.18A, "Enforcement of the Electric Power Generation, Transmission and Distribution Standard."
20	01/13/2003 - 1910.146, 1910.146(i), 1910.146(k)(1) - Respiratory protection and emergency escape requirements for IDLH atmospheres.
21	12/02/2002 - 1910.146, 1910.146(b), 1910.146(c)(7), 1910.146(c)(7)(i), 1910.146(c)(7)(ii), 1910.146(c)(7)(iii), 1910.146(c)(7)(iv) - Applicability of the confined-space standard to dock-leveler pits.
22	09/13/2001 - 1910.146 - Fall protection requirements for both residential and commercial HVAC systems; clarification of confined spaces
23	02/23/1999 - 1910.146, 1910.146(b) - Applicability of 1910.146 to fall hazards into pits.
24	04/17/1998 - 1910.146 - Response to fires in permit-required confined spaces (PRCS).
25	01/07/1998 - 1910.146 - Permit-Required Confined Spaces
26	12/22/1997 - 1910.146 - Permit-Required Confined Spaces Standard.
27	11/13/1997 - 1910.146 - Electronic monitoring system for complying with the confined space standard.
28	05/12/1997 - 1910.146 - Introduction of electrical welding equipment into a non-permit confined space.
29	02/28/1997 - 1910.146 - Hard-line communication equipment for use in the PRCS standard.
30	12/10/1996 - 1910.146 - Recording of atmospheric test results.
31	09/11/1996 - 1910.146 - Voluntary safety and health audits under the Occupational Safety and Health Act
32	08/15/1996 - 1910.146 - Interpretative guidance and equipment approved for hazardous locations relative to the Permit-Required Confined Spaces standard.
33	04/24/1996 - 1910.146 - OSHA's Permit-required Confined Spaces Standard.
34	02/08/1996 - 1910.146 - Guidance in determining whether certain spaces would be considered confined spaces.
35	01/11/1996 - 1910.146 - Permit-required confined spaces and control of hazardous energy; vehicle LOTO.
36	10/27/1995 - 1910.146 - Applying Permit-Required Confined Spaces (PRCS) standard to a workplace that is a multi-family residential commercial building
37	10/27/1995 - 1910.146 - Determining whether certain spaces meet the definition of a "confined space" according to the Permit-Required Confined Spaces standard.
38	10/27/1995 - 1910.146, 1910.146(b), 1910.146(c)(7) - Guidance in determining whether elevator pits meet the definition of confined spaces.
39	10/23/1995 - 1910.146 - Determining whether certain spaces routinely would be considered confined spaces by applying the (PRCS) standard's definition.
40	10/18/1995 - 1910.146 - Interpretation of 1910.146 regarding permits and multiple sewer entries along a common line.
41	10/18/1995 - 1910.146 - When permits are required for entry into a permit required confined space.
42	10/12/1995 - 1910.146 - Compliance Policy Concerning 29 CFR 1910.146.
43	10/06/1995 - 1910.146 - Interpretation of a lifting device and its ability to act as a rescue retrieval system as it applies to OSHA's permit required confined space entry standard.
44	10/06/1995 - 1910.146 - Interpretation of the provision of the Permit Required Confined Spaces Standard
45	09/21/1995 - 1910.146 - Use of explosion proof certified equipment inside of pipes and manholes.
46	07/11/1995 - 1910.146 - What OSHA safety standards are applicable to underground sewer pipeline inspection camera systems.
47	07/06/1995 - 1910.146 - Relationship between training requirements for those who will perform permit space rescue services in accordance with PRCS and the Hazardous Waste and Emergency Response standard.
48	06/21/1995 - 1910.146 - The appropriate atmospheric monitoring equipment to the wine making industry for compliance with OSHA standard 1910.146.
49	06/19/1995 - 1910.146 - Concern regarding the Hazard Information Bulletin.
50	06/01/1995 - 1910.146 - PRCS interpretation concerning a hydropower dam's 22 foot diameter sluice tunnel.
51	12/20/1994 - 1910.146 - Answers to specific questions concerning the permit-required confined spaces standard
52	12/20/1994 - 1910.146 - Application of the confined spaces standard to the elevator industry.
53	09/20/1994 - 1910.146 - Reclassification of silver inspection services' tank containers.
54	09/19/1994 - 1910.146, 1910.146(c)(1), 1910.146(c)(7), 1910.146(c)(8), 1910.146(c)(8)(i), 1910.146(c)(8)(ii), 1910.146(c)(8)(iii), 1910.146(c)(8)(iv), 1910.146(c)(8)(v), 1910.146(c)(9), 1910.146(d), 1910.146(d)(11) - Elevator industry employees working in and around pits and equipment.
55	09/16/1994 - 1910.146 - The relationship between the OSHA standards on Permit-Required Confined Space and Pulp, Paper, and Paperboard Mills
56	09/09/1994 - 1910.146 - Rescue Equipment Requirements.
57	08/11/1994 - 1910.146 - Permit-required confined spaces.
58	08/08/1994 - 1910.146 - Permit space entry
59	07/13/1994 - 1910.146 - Order of testing for permit spaces.
60	06/01/1994 - 1910.146 - Applicability of OSHA's PRCS standard to gas industry.
61	05/25/1994 - 1910.146 - Permit-required confined space standard does not apply where DOT/OPS regulations apply to working conditions.
62	05/09/1994 - 1910.146 - Permit Required Confined Space Standard as it relates to rescue services.
63	05/05/1994 - 1910.146 - Alternative procedures for the non-entry rescue provision.
64	03/18/1994 - 1910.146 - Permit-Required Confined Spaces standard.
65	01/13/1994 - 1910.146 - Confined space entry.
66	10/22/1993 - 1910.146 - Permit Required Confined Space Standard as it applies to certain operations.
67	10/21/1993 - 1910.146 - Permit Required Confined Spaces Standard requires employers to retain canceled entry permits for at least one year.
68	10/20/1993 - 1910.146 - Elevator repair and servicing.
69	10/15/1993 - 1910.146 - Summit's training program on confined space entry.
70	10/15/1993 - 1910.146 - Who is required to wear the body harnesses and retrieval lines.
71	10/08/1993 - 1910.146 - The meaning of the word "entrapment" as in the Permit Required Confined Space (PRCS) standard.
72	08/11/1993 - 1910.146 - Clarification of the definition of a permit-required confined space (permit space).
73	08/04/1993 - 1910.146 - Permit-Required Confined Spaces for General Industry.
74	07/30/1993 - 1910.146 - Conflict between requirements of 1910.252 and 1910.146
75	07/13/1993 - 1910.146 - Work performed in conjunction with insulated enclosures.
76	07/07/1993 - 1910.146 - Confined Space provisions of 29 CFR 1910.261 in light of the promulgation of 29 CFR 1910.146
77	05/19/1993 - 1910.146 - Interpretation of coverage for the telecommunications industry with regard to the new Permit-Required Confined Spaces standard.
78	05/10/1993 - 1910.146 - Clarification of paragraphs (c)(5) and (c)(7) of the Permit-Required Confined Spaces standard.
79	06/15/1992 - 1910.146 - Soil testing for excavations and confined spaces.

#	Directives
1	08/18/2009 - 1910.146 - National - CPL 03-00-010 [CPL 03-00-010] - Petroleum Refinery Process Safety Management National Emphasis Program - PDF
2	05/05/1995 - 1910.146 - National - CPL 02-00-100 [CPL 2.100] - Application of the Permit-Required Confined Spaces (PRCS) Standards, 29 CFR 1910.146 - PDF

#	Regulations
1	Permit-required confined spaces

#	Settlement Agreement
1	05/21/2007 - - Industry Settlement Agreement - National Association of Manufacturers - 05/21/2007
2	04/06/2007 - - Industry Settlement Agreement - Building and Construction Trades Department - 04/06/2007
3	06/21/1994 - - Industry Settlement Agreement - Steelworkers - 06/21/1994