(1) Every importer shall pay to the keeper of the Magazine or his or her assistants rent at the rate of $0.40 per cubic foot per week or part thereof during which any explosives belonging to him or her shall remain in the Government Magazine.
(2) When rent in respect of explosives is in arrears and unpaid for a period of 12 weeks the keeper or his or her assistants may refuse to deliver any explosive to the importer or his or her agent until such rent is paid by or on behalf of the importer.