{"data":{"id":"us/30-cfr-57.19022","jurisdiction":"us","citation":"30 CFR 57.19022","heading":"Initial measurement.","body":"After initial rope stretch but before visible wear occurs, the rope diameter of newly installed wire ropes shall be measured at least once in every third interval of active length and the measurements averaged to establish a baseline for subsequent measurements. A record of the measurements and the date shall be made by the person taking the measurements. This record shall be retained until the rope is retired from service.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","Subpart R—Personnel Hoisting"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-30.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:24Z","sha256":"55cde46a825f98fc5c2e3c9b6b17ac3a4649ae450c058ef1eb80b0736fc9f31e","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.19021","next":"us/30-cfr-57.19023"},"notice":"GroundRules: Original legal text. Not legal advice."}