10. (1) On receipt of a commencement notice, a building control authority shall—

(a) F20 [ record the date of receipt of the notice, and ]

(b) consider whether the notice complies with the requirements of article 9.

(2) Where a building control authority consider that a commencement notice complies with the requirements of article 9, they shall send to the person giving the notice an acknowledgement stating the date of receipt of the notice.

(3) F20 [ Where a building control authority considers that a commencement notice does not comply with Article 9 , they may respond, within 7 days of receipt of a notice filed electronically or within 12 days of receipt of a notice received in writing, by electronic means or in writing as appropriate, and notify the person giving the commencement notice, that, having regard to the extent of the failure to comply with the said Article,

( a ) the commencement notice is invalid and cannot be accepted by the authority, or

( b ) that such revised notice, or such additional information or fee, as may be necessary to comply with the said Article will be required to be submitted. ]

(4) Where a building control authority serve a notice in accordance with sub-article 3(a), they shall return to the person giving the notice, F21 [ the fee and any original documentation received from the person giving the notice. ]