Queensland Consolidated Regulations Queensland Consolidated RegulationsA person must not issue an explosive-powered tool, or a cartridge for an explosive-powered tool, to a person at an underground mine unless the person to whom the tool or cartridge is issued—
(a) has the underground mine manager’s authority to be issued with the tool or cartridge; and
(b) is working under the direct supervision of—(i) an ERZ controller for the mine; or(ii) a person who holds a higher certificate of competency.