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    California Certificate of Eligibility (COE)

    If you work with explosives in California, you most likely need a Certificate of Eligibility. This is a background check administered by CAL DOJ and successful completion of the process results in a certificate that is good for 12 months. A valid COE is required for almost all county explosive permits in California. Unfortunately, this…

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    Cave Rescue performed with blasting!

    The San Bernardino Sheriff’s Cave & Technical Rescue Team performed an amazing rescue last month of a man strapped in a sea cave in San Diego, CA. Micro-blasting was used to break the rock pinning his left leg, allowing firefighters to haul him out. Our publication on this subject gave a blueprint for this rescue….

  • Explosives Transport 101

    The regulations around transporting explosives are complex and involved multiple agencies. The US Department of Transportation (DOT) and their Pipeline and Hazardous Materials SafetyAdminsitration (PHMSA) set regulations at the Federal level. Your state DOT, highway patrol and local regulators often add their own system of regulations and permitting as well. There are basically basically 3…

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    Precision Blasting Course

    September’s blasting class was a success! Our group went over safety and PPE, ATF compliance, California blasting regulations and explosives storage. Then we went out on the range and covered initiation systems, blew up a chicken and gradually moved up to more difficult problems. The final project for this class was designing, drilling, loading and…

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    Cobra Combi Tuning Guide now available!

    Are you having trouble with your portable Atlas Copco gas drill? Have you noticed that there is very little information available on these units? Based on a lot of customer feedback, we have published a new comprehensive guide to tuning and troubleshooting your Combi portable drill. It covers most of the common problems and the…