{"data":{"id":"us/49-cfr-192.706","jurisdiction":"us","citation":"49 CFR 192.706","heading":"Transmission lines: Leakage surveys.","body":"Leakage surveys of a transmission line must be conducted at intervals not exceeding 15 months, but at least once each calendar year. However, in the case of a transmission line which transports gas in conformity with § 192.625 without an odor or odorant, leakage surveys using leak detector equipment must be conducted—\n(a) In Class 3 locations, at intervals not exceeding 7 1/2 months, but at least twice each calendar year; and\n(b) In Class 4 locations, at intervals not exceeding 4 1/2 months, but at least four times each calendar year.","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 M—Maintenance"],"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":"13dfaa6f306f3b69df91b852aaefa7beb3913c62cd0297afb1ed781483222f6d","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-192.705","next":"us/49-cfr-192.707"},"notice":"GroundRules: Original legal text. Not legal advice."}