An application to the local planning authority for a certificate under paragraph 1 of Schedule 3 to the Act shall be in writing, and shall include a plan or map sufficient to identify the land to which the application relates.

On submitting such an application the applicant shall serve a copy thereof on the gas authority.

The time within which a certificate is to be issued by the local planning authority shall be two months of the receipt of such an application by them.

Where the local planning authority is a London borough council or the Common Council of the City of London that council shall consult with the Greater London Council before issuing a certificate in any case where an application for planning permission for the controlled operations would have fallen to be dealt with by the Greater London Council.

The local planning authority shall include in the certificate a statement in writing of the reasons for their decision, including the reasons for any conditions specified therein, and shall give particulars of the manner in which, and the time within which, an appeal may be made to the planning Minister under paragraph 2 of Schedule 3 to the Act.

The local planning authority shall send a copy of every certificate issued by them to the council of every county district in which is situated any part of the land to which the certificate relates and, where the local planning authority is a London borough council or the Common Council of the City of London, to the Greater London Council.

The time for giving notice of an appeal under paragraph 2 of Schedule 3 to the Act shall be within one month of the receipt of the certificate or of the expiry of the time or extended period mentioned in sub-paragraph (4) of that paragraph, as the case may be.

Notice of appeal shall be given in writing to the planning Minister, and a copy of the notice shall be sent by the appellant to (a) the local planning authority, and (b) the other of the parties concerned.

The appellant shall within one month of giving notice of appeal, or such longer period as the planning Minister may at any time in any particular case allow, furnish to that Minister (a) a statement of the grounds of appeal, (b) one copy of the application to the local planning authority and (c) one copy of the certificate, if any, issued by the local planning authority.

If an appellant does not within the time limited under the last preceding paragraph furnish to the Minister the documents thereby required, the appeal shall be treated as withdrawn.