# Regulus search export

- Query: `55 FR 52667`
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- Exported: 2026-08-25T21:57:51.585Z

## 1. Ethylamine.

**Citation:** 49 CFR 173.321  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** 2026-08-18 / Not stated

\[Amdt. 173-224, 55 FR 52667, Dec. 21, 1990\]

### Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-173.321>
- Source ID: `ecfr`
- SHA-256: `81217730966fac87a3841d056dfb3e900a534db65e0e5265c53a1b779ccf7343`
- Retrieved: 2026-08-20T05:46:04.092Z
- Document slug: `49-cfr-173-321`
- Related records: 0