# Standard Interpretations
1 - 1926.800 - Applicablity of Subpart S to tunnels contructed by auger boring.
2 - 1926.800 - Typographical error in internet text of 1926.800(r)(13)(ii).
3 - 1926.800 - Request for an interpretation regarding the applicability of 1926.800 to the Fort Point Channel Crossing Immersed Tube. Tunnel.
4 - 1926.800 - Construction standards for equipment such as Shuttle Buggy.
5 - 1926.800 - Application of 1926.800 to lone employees working underground in a tunnel or shaft connected to a tunnel.
6 - 1926.800 - Application of the Confined Spaces Advisor to construction; personal fall arrest system requirements.
7 - 1926.800 - Numerous clarifications regarding underground construction;variances; joint ventures.
8 - 1926.800 - Fire prevention and protection requirements applicable to underground construction.
9 - 1926.800 - Wedge Sockets Wire Rope Clips (Piggy-Back Clip).
10 - 1926.800 - Wire rope clips in conjunction with wedge sockets.
11 - 1926.800 - Definition of Potentially Gassy Atmosphere.
12 - 1926.800 - Cage, skip and load connections to hoist ropes.
13 - 1926.800 - Use of liquefied petroleum gas (LPG) underground.
14 - 1926.800 - Transportation of compressed gas chambers.
15 - 1926.800 - Rehabilitation of a sewer tunnel constructed in the years between 1926 and 1932
16 - 1926.800 - Cut and cover construction.
17 - 1926.800 - Safety aspects of personnel and material hoists.
18 - 1926.800 - Cut-and-cover operation regulations of Excavation, Trenching, and Shoring.
19 - 1926.800 - Methylacetylene-propadiene, stabilized, by definition, is not a liquefied petroleum gas, but is considered as a fuel gas.
20 - 1926.800 - The handling, Storing and Use of MAPP Gas in Underground Construction Work.
21 - 1926.800 - Clarification of 29 CFR 1926.350(b)(4) to Permit Cylinders Containing Oxygen, Acetylene or Other Fuel Gas to be Taken into Tunnels.
22 - 1926.800 - Cut and cover tunneling operations.