{"data":{"id":"us/30-cfr-77.308","jurisdiction":"us","citation":"30 CFR 77.308","heading":"Structures housing other facilities; use of partitions.","body":"Thermal dryer systems installed after June 30, 1971 in any structure which also houses a tipple, cleaning plant, or other operating facility shall be separated from all other working areas of such structure by a substantial partition capable of providing greater resistance to explosion pressures than the exterior wall or walls of the structure. The partition shall also include substantial, self-closing fire doors at all entrances to the areas adjoining the dryer system.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","Subpart D—Thermal Dryers"],"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":"3197cf661a096bfd0667f308b84c395edf72500cb3057801e3c7bb9c5c323d5d","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-77.307","next":"us/30-cfr-77.309"},"notice":"GroundRules: Original legal text. Not legal advice."}