(1) The Governor-General may vary a human biosecurity emergency declaration to extend the human biosecurity emergency period for a period of up to 3 months if the Health Minister is satisfied that:
(a) the declaration listed human disease is continuing to pose a severe and immediate threat, or is continuing to cause harm, to human health on a nationally significant scale; and
(b) the extension is necessary to prevent or control:
(i) the entry of the declaration listed human disease into Australian territory or a part of Australian territory; or
(ii) the emergence, establishment or spread of the declaration listed human disease in Australian territory or a part of Australian territory.
(2) A variation made under subsection (1) is a legislative instrument, but section 42 (disallowance) of the Legislation Act 2003 does not apply to the variation.
(3) The Governor-General may extend a human biosecurity emergency period under subsection (1) more than once.