Table 1 to Paragraph ( c )(2)
Type | Feature | Area | Additional safety buffer |
A | -Metallic and the MAOP produces a hoop stress of 20 percent or more of SMYS | Class 2, 3, or 4 location ( see§ 192.5 ) | None. |
-If the stress level is unknown, an operator must determine the stress level according to the applicable provisions in subpart C of this part | |||
-Non-metallic and the MAOP is more than 125 psig (862 kPa) | |||
B | -Metallic and the MAOP produces a hoop stress of less than 20 percent of SMYS. If the stress level is unknown, an operator must determine the stress level according to the applicable provisions in subpart C of this part -Non-metallic and the MAOP is 125 psig (862 kPa) or less | Area 1. Class 3, or 4 location Area 2. An area within a Class 2 location the operator determines by using any of the following three methods: (a) A Class 2 location; (b) An area extending 150 feet (45.7 m) on each side of the centerline of any continuous 1 mile (1.6 km) of pipeline and including more than 10 but fewer than 46 dwellings; or (c) An area extending 150 feet (45.7 m) on each side of the centerline of any continuous 1000 feet (305 m) of pipeline and including 5 or more dwellings | If the gathering pipeline is in Area 2(b) or 2(c), the additional lengths of line extend upstream and downstream from the area to a point where the line is at least 150 feet (45.7 m) from the nearest dwelling in the area. However, if a cluster of dwellings in Area 2(b) or 2(c) qualifies a pipeline as Type B, the Type B classification ends 150 feet (45.7 m) from the nearest dwelling in the cluster. |
C | Outside diameter greater than or equal to 8.625 inches and any of the following: -Metallic and the MAOP produces a hoop stress of 20 percent or more of SMYS; -If the stress level is unknown, segment is metallic and the MAOP is more than 125 psig (862 kPa); or -Non-metallic and the MAOP is more than 125 psig (862 kPa) | Class 1 location | None. |
R | -All other onshore gathering lines | Class 1 and Class 2 locations | None. |
49 C.F.R. §192.8