---
kind: "section"
citation: "49 C.F.R. § 192.111"
title: "49"
number: "192.111"
heading: "Design factor ( F ) for steel pipe."
url: "https://uscodex.org/cfr/49/192.111"
---

# §192.111. Design factor ( F ) for steel pipe.

- (a) Except as otherwise provided in paragraphs [(b)](#b), [(c)](#c), and [(d)](#d) of this section, the design factor to be used in the design formula in [§ 192.105](/cfr/49/192.105.md) is determined in accordance with the following table:
- (b) A design factor of 0.60 or less must be used in the design formula in [§ 192.105](/cfr/49/192.105.md) for steel pipe in Class 1 locations that:
  - (1) Crosses the right-of-way of an unimproved public road, without a casing;
  - (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;
  - (3) Is supported by a vehicular, pedestrian, railroad, or pipeline bridge; or
  - (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.
- (c) For Class 2 locations, a design factor of 0.50, or less, must be used in the design formula in [§ 192.105](/cfr/49/192.105.md) for uncased steel pipe that crosses the right-of-way of a hard surfaced road, a highway, a public street, or a railroad.
- (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](/cfr/49/192.105.md) for—
  - (1) Steel pipe in a compressor station, regulating station, or measuring station; and
  - (2) **Steel pipe, including a pipe riser, on a platform located offshore or in inland navigable waters.**

## Notes

### Amendments

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-27, 41 FR 34605, Aug. 16, 1976]

### Authority

Authority: 30 U.S.C. 185(w)(3), 49 U.S.C. 5103, 60101 et. seq., and 49 CFR 1.97.

### Source

Source: 35 FR 13257, Aug. 19, 1970, unless otherwise noted.

### Amendments

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-27, 41 FR 34605, Aug. 16, 1976]