# Regulus search export

- Query: `45 FR 70404`
- Source type: All
- Part: All
- Source: All
- Status: All
- Jurisdiction: All
- Collection: All
- Incident class: All
- Sort: relevance
- Date from: Any
- Date to: Any
- As of: Current corpus
- Results: 1
- Exported: 2026-08-24T16:54:38.102Z

## 1. Vents.

**Citation:** 49 CFR 193.2431  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** 1999-10-01 / Not stated

(a) Hazardous fluids may not be relieved into the atmosphere of a building or other confined space. (b) Boiloff vents for hazardous fluids may not draw in air during operation. (c) Venting of natural gas/vapor under operational control which could produce a hazardous gas atmosphere must be directe

### Provenance

- Official: Yes
- Source: <https://www.govinfo.gov/app/details/CFR-1999-title49-vol3/CFR-1999-title49-vol3-sec193-2431>
- Source ID: `govinfo-cfr`
- SHA-256: `69f01fde13bdc343feacd4c9d6cefaf755563df102e6296c3e8ee5486c818621`
- Retrieved: 2026-08-12T01:41:23.231Z
- Document slug: `49-cfr-193-2431`
- Related records: 2