{"operation":"document","citation":"49 CFR 192.111","title":"Design factor (F) for steel pipe.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"(a) Except as otherwise provided in paragraphs (b), (c), and (d) of this section, the design factor to be used in the design formula in § 192.105 is determined in accordance with the following table:\n\nClass location Design factor (F) 1 0.72 2 0.60 3 0.50 4 0.40\n\n(b) A design factor of 0.60 or less m","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-192-111.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-192-111.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-192-111","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-192.111","body":"(a) Except as otherwise provided in paragraphs (b), (c), and (d) of this section, the design factor to be used in the design formula in § 192.105 is determined in accordance with the following table:\n\nClass location Design factor (F) 1 0.72 2 0.60 3 0.50 4 0.40\n\n(b) A design factor of 0.60 or less must be used in the design formula in § 192.105 for steel pipe in Class 1 locations that:\n\n(1) Crosses the right-of-way of an unimproved public road, without a casing;\n\n(2) Crosses without a casing, or makes a parallel encroachment on, the right-of-way of either a hard surfaced road, a highway, a public street, or a railroad;\n\n(3) Is supported by a vehicular, pedestrian, railroad, or pipeline bridge; or\n\n(4) Is used in a fabricated assembly, (including separators, mainline valve assemblies, cross-connections, and river crossing headers) or is used within five pipe diameters in any direction from the last fitting of a fabricated assembly, other than a transition piece or an elbow used in place of a pipe bend which is not associated with a fabricated assembly.\n\n(c) For Class 2 locations, a design factor of 0.50, or less, must be used in the design formula in § 192.105 for uncased steel pipe that crosses the right-of-way of a hard surfaced road, a highway, a public street, or a railroad.\n\n(d) For Class 1 and Class 2 locations, a design factor of 0.50, or less, must be used in the design formula in § 192.105 for—\n\n(1) Steel pipe in a compressor station, regulating station, or measuring station; and\n\n(2) Steel pipe, including a pipe riser, on a platform located offshore or in inland navigable waters.\n\n[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-27, 41 FR 34605, Aug. 16, 1976]","truncated":false,"body_characters":1701}