5. After regulation 13 (approved inspector’s consultation with the fire authority), there shall be inserted the following regulation—
13A.—(1) This regulation applies where an initial notice or amendment notice is to be given or has been given in respect of work in relation to which paragraph H4 of Schedule 1 to the Principal Regulations imposes requirements.
(2) Where this regulation applies, the approved inspector shall consult the sewerage undertaker—
(a)before or as soon as practicable after giving an initial notice in relation to the work;
(b)before or as soon as practicable after giving an amendment notice in relation to the work;
(c)before giving a plans certificate (whether or not combined with an initial notice); and
(d)before giving a final certificate.
(3) Where an approved inspector is required by paragraph (2) to consult the sewerage undertaker, he shall give to the sewerage undertaker—
(a)in a case where he is consulting them in connection with an initial notice or an amendment notice, sufficient plans to show whether the work would, if carried out in accordance with those plans, comply with the applicable requirements of paragraph H4 of Schedule 1 to the Principal Regulations; and
(b)in a case where he is consulting them in connection with the giving of a plans certificate, a copy of the plans in relation to which he intends to give the certificate.
(4) Where an approved inspector is required by paragraph (2) to consult the sewerage undertaker—
(a)he shall have regard to any views they express; and
(b)he shall not give a plans certificate or a final certificate until 15 days have elapsed from the date on which he consulted them, unless they have expressed their views to him before the expiry of that period.”.