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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 A: General
7.6 - Approval marking and distribution record.
(a) Each approved product shall have an approval marking, as specified in the appropriate subpart of this part.
(b) For an extension of approval, the extension number shall be added to the original approval number on the approval marking.
(c) Applicants shall maintain records of the initial sale of each unit having an approval marking. The record retention period shall be at least the expected shelf life and service life of the product.
[53 FR 23500, June 22, 1988, as amended at 60 FR 33722, June 29, 1995]
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