{"data":{"id":"us/49-cfr-192.189","jurisdiction":"us","citation":"49 CFR 192.189","heading":"Vaults: Drainage and waterproofing.","body":"(a) Each vault must be designed so as to minimize the entrance of water.\n(b) A vault containing gas piping may not be connected by means of a drain connection to any other underground structure.\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).","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER D—PIPELINE SAFETY","PART 192—TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS","Subpart D—Design of Pipeline Components"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"52ef259290ea61b252c1a0613f57140a3540bff7cb02e23ca1d7ab147aa07833","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-192.187","next":"us/49-cfr-192.191"},"notice":"GroundRules: Original legal text. Not legal advice."}