# General.

**Citation:** 49 CFR 193.2103  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 1999-10-01  
**Published:** Not stated

Materials for all components must be—

(a) Able to maintain their structural integrity under all design loadings, including applicable environmental design forces under subpart B of this part;

(b) Physically, chemically, and thermally compatible within design limits with any fluid or other material

## Document text

Materials for all components must be—

(a) Able to maintain their structural integrity under all design loadings, including applicable environmental design forces under subpart B of this part;

(b) Physically, chemically, and thermally compatible within design limits with any fluid or other materials with which they are in contact; and

(c) Qualified in accordance with the applicable requirements of this subpart.

## Provenance

- Official: Yes
- Source: <https://www.govinfo.gov/app/details/CFR-1999-title49-vol3/CFR-1999-title49-vol3-sec193-2103>
- Source ID: `govinfo-cfr`
- SHA-256: `98ad05134988920ac18ae5ff0f484a819f06e5d85be6a42e6220f1dd660dfc78`
- Retrieved: 2026-08-12T01:41:23.231Z
- Exported: 2026-08-23T07:55:14.395Z
- Document slug: `49-cfr-193-2103`

### Source metadata

```json
{
  "part": "193",
  "section": "193.2103",
  "subpart": "Subpart C—Design",
  "annualEdition": 1999,
  "revisedAsOf": "1999-10-01",
  "govInfoPackage": "CFR-1999-title49-vol3",
  "legalStatus": "official-annual-cfr-edition",
  "effectiveDateNote": null,
  "historicalAnchor": true,
  "historicalAnchorNote": "The section appears in an official annual CFR edition but is absent from the connected current eCFR corpus.",
  "jurisdiction": "US"
}
```