{"operation":"document","citation":"49 CFR 193.2161","title":"Dikes, general.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"An outer wall of a component served by an impounding system may not be used as a dike unless the outer wall is constructed of concrete.\n\n[Amdt. 193-17, 65 FR 10959, Mar. 1, 2000]","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-193-2161.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-193-2161.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-193-2161","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-193.2161","body":"An outer wall of a component served by an impounding system may not be used as a dike unless the outer wall is constructed of concrete.\n\n[Amdt. 193-17, 65 FR 10959, Mar. 1, 2000]","truncated":false,"body_characters":178}