{"operation":"document","citation":"49 CFR 178.345","title":"General design and construction requirements applicable to Specification DOT 406 (§ 178.346), DOT 407 (§ 178.347), and DOT 412 (§ 178.348) cargo tank motor vehicles.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-178-345.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-178-345.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-178-345","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-178.345","body":"","truncated":false,"body_characters":0}