2.—(1) In these regulations:—

“the Act” means the New Roads and Street Works Act 1991;

“authority” means a highway, bridge or transport authority;

“the Code” means the Code of Practice entitled “Measures Necessary where Apparatus is Affected by Major Works (Diversionary Works)” and dated June 1992, and approved by the Secretary of State on 30th June 1992 as revised and re-issued from time to time;

“works” means major highway works, major bridge works or major transport works;

a reference to a regulation followed by a number is a reference to the regulation bearing that number in these Regulations, and a reference to a paragraph followed by a number or a letter is a reference to the paragraph bearing that number or letter in the regulation in which the reference occurs.

(2) For the purposes of these Regulations “allowable costs” means all the reasonable costs of the measures needed to be taken for the purpose specified in section 84(1) of the Act except costs incurred:—

(a) in preparing the initial set of plans and estimates in relation to those measures (but not in preparing any further plans and estimates which the authority may require); and

(b) in relation to the undertaker’s apparatus placed in a street after the undertaker was given notice as mentioned in section 85(2)(a) of the Act.