11.—(1) A hazardous substances authority shall not determine an application for hazardous substances consent before the expiry of—
(a)the period or periods allowed for making representations pursuant to regulation 6(2) and 7(2); and
(b)where the authority is required to consult under regulation 10, a period of 28 days beginning with the date on which the consultee is served with a copy of the application, or, where the authority is required to consult more than one consultee, beginning with the date by which all consultees have been so served.
(2) Subject to paragraph (1), a hazardous substances authority shall, within the period specified in paragraph (3), give the applicant written notice of their decision or notice that the application has been referred to the Secretary of State for determination by him.
(3) The period specified for the purposes of paragraph (2) is—
(a)a period of 8 weeks from the date when the application is received by the hazardous substances authority;
(b)except where the applicant has already given notice of appeal to the Secretary of State, such extended period as may be agreed in writing by the applicant and the hazardous substances authority; or
(c)where a fee due in respect of an application has been paid by a cheque which is subsequently dishonoured, the appropriate period specified in (a) or (b) above calculated without regard to any time between the date when the authority sent the applicant written notice of the dishonouring of the cheque and the date when the authority are satisfied that they have received the full amount of the fee.
(4) When a hazardous substances authority give notice of a decision on an application the notice shall, where hazardous substances consent is refused or is granted subject to conditions—
(a)state, clearly and precisely, their full reasons for the refusal or for any condition imposed;
(b)include a statement to the effect that if the applicant is aggrieved by the decision he may appeal to the Secretary of State under section 21 within 6 months of the date of the notice of the decision, or such longer period as the Secretary of State may at any time allow.
(5) The hazardous substances authority shall, as soon as is practicable, inform the following persons of the terms of their decision—
(a)the Health and Safety Executive;
(b)the district or London borough council or county council, where that council is not the hazardous substances authority concerned;
(c)any other consultees who have made representations to them on the applica tion; and
(d)any owners who have made representations to them on the application.