{"data":{"id":"us/30-cfr-7.61","jurisdiction":"us","citation":"30 CFR 7.61","heading":"Purpose and effective date.","body":"This subpart establishes the specific requirements for MSHA approval of multiple-shot blasting units. It is effective January 22, 1990. Applications for approval or extensions of approval submitted after January 22, 1991 shall meet the requirements of this subpart.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER B—TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS","PART 7—TESTING BY APPLICANT OR THIRD PARTY","Subpart D—Multiple-Shot Blasting Units"],"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":"d1d6683b811b7b08c606a02df8f8e40c3ba7ff09f03068a3ba63c01516f21b01","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-7.52","next":"us/30-cfr-7.62"},"notice":"GroundRules: Original legal text. Not legal advice."}