# External loads.

**Citation:** 49 CFR 195.110  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

(a) Anticipated external loads (e.g., earthquakes, vibration, thermal expansion, and contraction) must be provided for in a pipeline system's design. Sections 401, 402, 403.3, and 403.9 of ASME B31.4 (incorporated by reference, see § 195.3) must be followed to provide for expansion and flexibility.


## Document text

(a) Anticipated external loads (e.g., earthquakes, vibration, thermal expansion, and contraction) must be provided for in a pipeline system's design. Sections 401, 402, 403.3, and 403.9 of ASME B31.4 (incorporated by reference, see § 195.3) must be followed to provide for expansion and flexibility.

(b) The pipe and other components must be supported in such a way that the support does not cause excess localized stresses. In designing attachments to pipe, the added stress to the wall of the pipe must be computed and compensated for.

[Amdt. 195-22, 46 FR 38360, July 27, 1981, as amended at 58 FR 14524, Mar. 18, 1993; Amdt. 195-107, 89 FR 33284, Apr. 29, 2024; Amdt. 195-117, 90 FR 40766, Aug. 21, 2025]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-195.110>
- Source ID: `ecfr`
- SHA-256: `e733e4889b0d53791ff7806c9818a1579d2cd84134e0486aa8836a245a05e4ab`
- Retrieved: 2026-08-20T05:54:41.219Z
- Exported: 2026-08-23T16:07:41.054Z
- Document slug: `49-cfr-195-110`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "195",
  "section": "195.110",
  "subpart": "Subpart C—Design Requirements",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```