This webinar covers public relations, blast design & timing, quality control and transportation of explosives.

This webinar is valid for one certificate of completion. If you have previously taken the course and received a certificate, you will not earn another one by taking the quiz again. If this webinar is being taken for retraining credit hours, a 20-question quiz must be completed after watching the webinar in its entirety. Users who score 75 percent or higher, and who submit a signed affidavit stating the entire webinar was watched, will receive a certificate of completion.

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This webinar covers geology factors in blast performance; flyrock; bulk explosives equipment; and blasting safety.

This webinar is valid for one certificate of completion. If you have previously taken the course and received a certificate, you will not earn another one by taking the quiz again. If this webinar is being taken for retraining credit hours, a 20-question quiz must be completed after watching the webinar in its entirety. Users who score 75 percent or higher, and who submit a signed affidavit stating the entire webinar was watched, will receive a certificate of completion.

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This webinar covers close-in construction blasting; blaster's math; blast reporting/recordkeeping; and vibration fundamentals.

This webinar is valid for one certificate of completion. If you have previously taken the course and received a certificate, you will not earn another one by taking the quiz again. If this webinar is being taken for retraining credit hours, a 20-question quiz must be completed after watching the webinar in its entirety. Users who score 75 percent or higher, and who submit a signed affidavit stating the entire webinar was watched, will receive a certificate of completion.

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This webinar covers blast design fundamentals; driller and blaster communications; explosive products; and flyrock prevention.

This webinar is valid for one certificate of completion. If you have previously taken the course and received a certificate, you will not earn another one by taking the quiz again. If this webinar is being taken for retraining credit hours, a 20-question quiz must be completed after watching the webinar in its entirety. Users who score 75 percent or higher, and who submit a signed affidavit stating the entire webinar was watched, will receive a certificate of completion.

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