122.—(1) Cambridgeshire County Council must not unreasonably withhold or delay the issue of a written certification under paragraph 121. Subject to sub-paragraphs (2) and (3), if Cambridgeshire County Council has not given or refused such written certification within 28 days, it is deemed to have issued a written certification provided that the undertaker includes in any such request for certification a statement confirming that the deemed certification provisions this paragraph apply to such request and if such request fails to do so, the deemed certification provision of this paragraph is null and void.
(2) Any officer of Cambridgeshire County Council duly appointed for the purpose of issuing a written certification under sub-paragraph (1) may at all reasonable times and on reasonable notice during the 28 day period enter upon and inspect any part of the completed works.
(3) If further information is requested by Cambridgeshire County Council, the 28 day period to issue a written certificate in accordance with sub-paragraph (1) will recommence starting on the date that such further information has been submitted by the undertaker to Cambridgeshire County Council.