30 CFR 7.61 - Purpose and effective date.

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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

7.61 - Purpose and effective date.

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.

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