12. On receipt of an application for express consent, the local planning authority—
(a)shall send an acknowledgement to the applicant;
(b)may direct the applicant to provide one of the authority's officers with such evidence as may reasonably be called for to verify any particulars or information given to the authority; and
(c)if it is the county planning authority, shall send a copy of the application and the accompanying plan to the district planning authority within whose area any part of the application site is situated.