(1) The Secretary may exempt a person from all or any of the provisions of this Part if reasonably satisfied that (a) the person needs to carry out unplanned emergency blasting to save or protect life or property; or(b) the person needs to carry out unplanned blasting at short notice to deal with an unforeseen contingency arising from blasting under a blasting plan; or(c) there is other compelling justification for granting the exemption.(2) The exemption may be applied for and granted by the means that the Secretary considers necessary or expedient in the circumstances.