§ 24.6 - Approvals.

Latest version.

All approvals are granted by letter from MSHA. A blasting unit will be approved under this part only when the testing engineers shall have judged that it has met the requirements of the schedule and MSHA's records are complete, including drawings from the manufacturer that show the unit as it is to be made. No verbal reports of the investigation will be given, and no informal approval will be granted. The manufacturer shall not advertise his blasting unit as permissible or approved until he has received the formal notification of approval from MSHA.

                    
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