An explosive approval (EX Approval) is a classification document issued by the Pipeline and Hazardous Materials Safety Administration’s (PHMSA) Associate Administrator for Hazardous Materials Safety, a federal agency falling under the DOT’s purview. This entity is responsible for issuing and administering all Hazardous Materials Regulations (HMR).
An EX Approval classification document provides written consent to perform a pyrotechnics transportation function under the HMR. Its purpose is to ensure the safe transport of these items and assign the appropriate shipping name and hazard class.
The document also assigns an EX Number issued by the Associate Administrator or designated representative. Shippers must display the number on the product package or shipping paperwork.
Not all EX Approvals are the same. Having the correct EX approval makes it easier for customers to receive in and store a Cartridge with 1.4s shipping approval vs. 1.4c cartridge. It also helps with customs when the product is shipped internationally and the specific Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) exemptions.