# Regulus search export - Query: `73 FR 1307` - 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: 2026-08-24T03:13:12.498Z ## 1. Pipeline Safety: Polyamide-11 (PA-11) Plastic Pipe Design Pressures **Citation:** 73 FR 1307 **Type / status:** rulemaking / proposed **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** Not stated / 2008-01-08 PHMSA proposes to revise the Federal pipeline safety regulations to allow certain thermoplastic pipelines made from new Polyamide-11 (PA-11) pipe to be designed using a higher design factor and to raise the design pressure limit for the same pipelines. Design pressure calculations and design pressure limitations for all other thermoplastic pipes (PE-polyethylene, PB-polybutylene, PVC-polyvinyl chloride, etc.) would remain unchanged. These rule changes would allow pipeline operators to operate certain pipelines constructed of new PA- 11 pipe at higher operating pressures than currently allowed by the existing rules. This would allow pipeline operators to take advantage of the strength characteristics of PA-11 pipe. ### Provenance - Official: Yes - Source: - Source ID: `federal-register` - SHA-256: `c2feae30a759f07da00eeadde5ed0ed3345d00f5b472c6c8b81c774b888f7d96` - Retrieved: 2026-08-20T06:04:51.294Z - Document slug: `federal-register-e8-33` - Related records: 4