# Regulus search export

- Query: `PI-71-0121`
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- Exported: 2026-08-24T00:14:58.384Z

## 1. Cyclonics, Inc. — Pipeline Safety Interpretation

**Citation:** PI-71-0121  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** Not stated / 1971-12-03

PI-71-0121 response to Cyclonics, Inc. concerning 192.501.

### Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1971/g71-12-03_Roberts_192.501-msfx.pdf>
- Source ID: `phmsa`
- SHA-256: `64e19f61774fb572ef023429b0db1000d5e88dcb10d0d05ec6d6835eb5970a24`
- Retrieved: 2026-08-20T00:59:31.977Z
- Document slug: `phmsa-interpretation-pi-71-0121`
- Related records: 3