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# Federal Registers
1 2015 - 05/04/2015 - Confined Spaces in Construction; Final Rule - 80:25365-25526
2 2015 - 03/17/2015 - Agency Information Collection Activities: Announcement of the Office of Management and Budget (OMB) Control Numbers Under the Paperwork Reduction Act - 80:13893-13894
3 2014 - 07/22/2014 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Underground Construction Standard - 79: 42537-42538
4 2014 - 04/07/2014 - Underground Construction Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - 79: 19125-19127
5 2008 - 03/11/2008 - Submission for OMB Review: Comment Request - 73:13011-13012
6 2007 - 12/14/2007 - Underground Construction Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - 72:71161-71162
7 2005 - 03/04/2005 - Submission for OMB Review: Comment Request - 70: 10686-10687
8 2004 - 12/14/2004 - Underground Construction Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information Collection (Paperwork) Requirements - 69: 74539-74541
9 2001 - 08/30/2001 - Underground Construction Standard; Extension of the Office of Management and Budget's (OMB) Approval of Information-Collection (Paperwork) Requirements - 66:45868-45870
10 1999 - 04/16/1999 - Office of Management and Budget Control Numbers Under the Paperwork Reduction Act for Miscellaneous Construction Industry Rules. - 64:18809-18810
11 1998 - 09/04/1998 - Submission for OMB Review; Comment Request. - 63:47323-47324
12 1998 - 06/19/1998 - Underground Construction -- Air Quality Record. - 63:33713-33714
13 1989 - 06/02/1989 - Underground Construction - 54:23824-57
14 1987 - 04/17/1987 - Variance - 52:12629-32
15 1985 - 08/19/1985 - Underground Construction - 50:33357-9
16 1983 - 12/19/1983 - Tunnels and Shafts - 48:56087
17 1983 - 08/05/1983 - Underground Construction - 48:35774-818
18 1974 - 03/18/1974 - Tunnels and Shafts - 39:10216-23
# Standard Interpretations
1 2010 - 10/01/2010 - Applicablity of Subpart S to tunnels contructed by auger boring.
2 2002 - 11/29/2002 - Typographical error in internet text of 1926.800(r)(13)(ii).
3 2002 - 08/08/2002 - Request for an interpretation regarding the applicability of 1926.800 to the Fort Point Channel Crossing Immersed Tube. Tunnel.
4 2001 - 05/23/2001 - Construction standards for equipment such as Shuttle Buggy.
5 2001 - 05/03/2001 - Application of 1926.800 to lone employees working underground in a tunnel or shaft connected to a tunnel.
6 2000 - 11/03/2000 - Application of the Confined Spaces Advisor to construction; personal fall arrest system requirements.
7 1998 - 05/28/1998 - Numerous clarifications regarding underground construction, variances, joint ventures.
8 1998 - 05/28/1998 - Numerous clarifications regarding underground construction;variances; joint ventures.
9 1996 - 03/15/1996 - Fire prevention and protection requirements applicable to underground construction.
10 1994 - 08/08/1994 - Wedge Sockets Wire Rope Clips (Piggy-Back Clip).
11 1994 - 07/26/1994 - Wire rope clips in conjunction with wedge sockets.
12 1993 - 07/24/1993 - Definition of Potentially Gassy Atmosphere.
13 1992 - 08/19/1992 - Cage, skip and load connections to hoist ropes.
14 1992 - 05/20/1992 - Use of liquefied petroleum gas (LPG) underground.
15 1992 - 05/05/1992 - Transportation of compressed gas chambers.
16 1991 - 01/29/1991 - Rehabilitation of a sewer tunnel constructed in the years between 1926 and 1932
17 1980 - 09/23/1980 - Cut and cover construction.
18 1978 - 02/17/1978 - Safety aspects of personnel and material hoists.
19 1976 - 07/19/1976 - Cut-and-cover operation regulations of Excavation, Trenching, and Shoring.
20 1976 - 04/15/1976 - The handling, Storing and Use of MAPP Gas in Underground Construction Work.
21 1975 - 07/07/1975 - Clarification of 29 CFR 1926.350(b)(4) to Permit Cylinders Containing Oxygen, Acetylene or Other Fuel Gas to be Taken into Tunnels.
22 1975 - 04/30/1975 - Cut and cover tunneling operations.
# Regulations (Standards - 29 CFR)
1 1926.800 - Underground Construction

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