Regulation 171—Only competent and certified persons allowed to use explosives(1) A person shall not handle or use explosives, unless that person is competent to do so under this regulation(2) For the purpose of subregulation (1), "competent" means having satisfied the requirements of regulation 20 or 21 and having documentation confirming the certificate.(3) A blastman with a certificate of competency shall be responsible for a blast site.

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