# Control of incoming gas.

**Citation:** 49 CFR 193.2417  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 1999-10-01  
**Published:** Not stated

A shutoff valve must be located on piping delivering natural gas to each liquefaction system.

## Document text

A shutoff valve must be located on piping delivering natural gas to each liquefaction system.

## Provenance

- Official: Yes
- Source: <https://www.govinfo.gov/app/details/CFR-1999-title49-vol3/CFR-1999-title49-vol3-sec193-2417>
- Source ID: `govinfo-cfr`
- SHA-256: `215e207f95f6acf8d1f9e237298808914960adf49948115db54f61afc0f911ea`
- Retrieved: 2026-08-12T01:41:23.231Z
- Exported: 2026-08-22T06:14:45.972Z
- Document slug: `49-cfr-193-2417`

### Source metadata

```json
{
  "part": "193",
  "section": "193.2417",
  "subpart": "Subpart E—Equipment",
  "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"
}
```