{"operation":"document","citation":"PHMSA-2025-0455-0011","title":"2025-0455 - Final Letter of Determination - REX","source_type":"rulemaking","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":"2026-06-03","effective_on":null,"summary":"Supporting & Related Material; Supplement; docket PHMSA-2025-0455.","machine_formats":{"json":"https://regulus.evalyn.ai/document/regulations-gov-document-phmsa-2025-0455-0011.json","markdown":"https://regulus.evalyn.ai/document/regulations-gov-document-phmsa-2025-0455-0011.md"},"app_url":"https://regulus.evalyn.ai/document/regulations-gov-document-phmsa-2025-0455-0011","source_url":"https://www.regulations.gov/document/PHMSA-2025-0455-0011","body":"2025-0455 - Final Letter of Determination - REX Supporting & Related Material; Supplement. Filed in Regulations.gov docket PHMSA-2025-0455.","truncated":false,"body_characters":139}