# Regulus search export - Query: `81 FR 48978` - 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: 2026-08-25T11:48:49.672Z ## 1. Hazardous Materials: Miscellaneous Amendments Pertaining to DOT-Specification Cylinders (RRR) **Citation:** 81 FR 48978 **Type / status:** rulemaking / proposed **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** Not stated / 2016-07-26 The Pipeline and Hazardous Materials Safety Administration (PHMSA) is proposing to amend the Hazardous Materials Regulations to revise certain requirements applicable to the manufacture, use, and requalification of DOT-specification cylinders. PHMSA is taking this action in response to petitions for rulemaking submitted by stakeholders and to agency review of the compressed gas cylinders regulations. Specifically, PHMSA is proposing to incorporate by reference or update the references to several Compressed Gas Association publications, amend the filling requirements for compressed and liquefied gases, expand the use of salvage cylinders, and revise and clarify the manufacture and requalification requirements for cylinders. ### Provenance - Official: Yes - Source: - Source ID: `federal-register` - SHA-256: `7dcea0069c8cec23e4ebe3177dbe5b58a131ffa752129a573096ab87190edfec` - Retrieved: 2026-08-20T06:04:51.294Z - Document slug: `federal-register-2016-16689` - Related records: 92