If at any time the Prime Minister is satisfied that a national disaster has occurred in Grenada or any part of Grenada and that supplies and services essential to the life of the community are in consequence likely to be endangered, he or she may, by declaration published in the Gazette, declare that a national disaster has occurred in Grenada or that part, and thereupon the provisions contained in this Act shall commence to have effect. A declaration shall remain in force until revoked by the Prime Minister by notice published in the Gazette, and thereupon the provisions of this Act shall for the time being cease to have effect, but subject to subsection (1). Regulations made under section 6 shall be published in the Gazette. If at any time it is impossible or impracticable to publish in the Gazette any declaration or regulations it shall be lawful to publish such declaration or regulations by means of notices affixed to public buildings or distributed amongst the public or by oral public announcement by radio or otherwise.