Hong Kong Regulations

ENTERTAINMENT SPECIAL EFFECTS (GENERAL) REGULATION - SECT 15

Alterations and cancellation

The Authority may, where he considers it necessary in the interests of public
safety-

   (a)  alter any particulars relating to the classification or restrictions
        of any pyrotechnic special effects material entered in the register;
        or

   (b)  cancel the registration of any pyrotechnic special effects material
        and remove the same from the register.