{"operation":"document","citation":"49 CFR 192.189","title":"Vaults: Drainage and waterproofing.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"(a) Each vault must be designed so as to minimize the entrance of water.\n\n(b) A vault containing gas piping may not be connected by means of a drain connection to any other underground structure.\n\n(c) Electrical equipment in vaults must conform to the applicable requirements of Class 1, Group D, of ","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-192-189.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-192-189.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-192-189","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-192.189","body":"(a) Each vault must be designed so as to minimize the entrance of water.\n\n(b) A vault containing gas piping may not be connected by means of a drain connection to any other underground structure.\n\n(c) Electrical equipment in vaults must conform to the applicable requirements of Class 1, Group D, of the National Electrical Code, NFPA-70 (incorporated by reference, see § 192.7).\n\n[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-76, 61 FR 26122, May 24, 1996; Amdt. 192-119, 80 FR 181, Jan. 5, 2015]","truncated":false,"body_characters":504}