7.—(1) An application for hazardous substances consent must not be entertained by the hazardous substances authority unless it is accompanied by whichever of certificates A to D set out in Form 2 is appropriate, signed by or on behalf of the applicant.
(2) The required notice referred to in certificates B and C of Form 2 must, in the case of an application for hazardous substances consent, be a notice given on Form 3 and must attach a copy of the notice required to be published under regulation 6(1)(a).