9.—(1) No phase of the authorised development (with the exception of the highway works to the existing highways (the A5, the A449, Vicarage Road, Station Road and Station Drive) which are governed by Parts 2 and 3 of Schedule 13 (protective provisions)) is to commence until a written scheme of investigation for that phase has been submitted to and approved in writing by the local planning authority. The written scheme of investigation must be in accordance with the principles set out in the outline written scheme of investigation contained in technical appendix 8.5 of the environmental statement.
(2) The written scheme of investigation must provide for the investigation of areas of archaeological interest identified by the evaluation surveys which established the base line conditions in the environmental statement and include the following components, completion of each of which will trigger the phased discharging of the requirement—
(a)approval of a written scheme of investigation;
(b)where identified to be necessary, fieldwork in accordance with the agreed written scheme of investigation;
(c)completion of a post-fieldwork assessment report; to be submitted within 6 months of the completion of fieldwork, unless otherwise agreed in advance in writing by the local planning authority; and
(d)completion of analysis, preparation of site archive ready for deposition at a store approved by the local planning authority, production of an archive report, and submission of a publication report; to be completed within 2 years of the completion of fieldwork, unless otherwise agreed in advance in writing by the local planning authority.
(3) Any actions required by the written scheme of investigation must be carried out by a suitably qualified archaeologist in accordance with that approved scheme.
(4) The programme of archaeological work may be subject to alteration by approval in writing by the local planning authority.