{"data":{"id":"us/30-cfr-819.21","jurisdiction":"us","citation":"30 CFR 819.21","heading":"Auger mining: Protection of underground mining.","body":"Auger holes shall not extend closer than 500 feet (measured horizontally) to any abandoned or active underground mine workings, except as approved in accordance with § 816.79 of this chapter.","path":["Title 30—Mineral Resources","CHAPTER VII—OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR","SUBCHAPTER K—PERMANENT PROGRAM PERFORMANCE STANDARDS","PART 819—SPECIAL PERMANENT PROGRAM PERFORMANCE STANDARDS-AUGER MINING"],"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":"d9309f8e896f3f24bee907ef4c80c7f45dcf1a2ce5346f6155bf3e9eeb543a1e","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-819.19","next":"us/30-cfr-820.1"},"notice":"GroundRules: Original legal text. Not legal advice."}