C.F.R. » Title 30 » 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

30 C.F.R. § 7.61

Purpose and effective date

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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.