{"operation":"document","citation":"49 CFR 172.822","title":"Limitation on actions by states, local governments, and Indian tribes.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"A law, order, or other directive of a state, political subdivision of a state, or an Indian tribe that designates, limits, or prohibits the use of a rail line (other than a rail line owned by a state, political subdivision of a state, or an Indian tribe) for the transportation of hazardous materials","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-172-822.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-172-822.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-172-822","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-172.822","body":"A law, order, or other directive of a state, political subdivision of a state, or an Indian tribe that designates, limits, or prohibits the use of a rail line (other than a rail line owned by a state, political subdivision of a state, or an Indian tribe) for the transportation of hazardous materials, including, but not limited to, the materials specified in § 172.820(a), is preempted. 49 U.S.C. 5125, 20106.\n\n[73 FR 20772, Apr. 16, 2008]","truncated":false,"body_characters":440}