66. Requirement for disposing of substances---(1) Where any hazardous
 substance has been reassessed in accordance with section 63 of this Act
 and the Authority has declined to allow any further importation or
 manufacture of that substance, the Authority may issue a direction, by
 notice in the Gazette, prohibiting the use of that substance and
 requiring that substance to be disposed of, at the owner's expense, in
 accordance with the controls placed on it by the Authority.

   (2) Where the use of any hazardous substance is prohibited in
 accordance with subsection (1) of this section, the Authority may, if it
 thinks fit, add to or vary the controls on disposal of that substance to
 control any additional adverse effects of disposal of that substance in
 accordance with subsection (1) of this section, disclosed during
 reassessment.