General Rules Covering the Preparation of Bills of Quantities for Civil Engineering Work

preambles are introductory clauses inserted at the commencement of bills of quantities containing any necessary instructions, references to obligations imposed on the contractor under the terms of the contract and any matters which affect the contractor in pricing the bills and which ought to be drawn to his notice. Their main purpose is to help contractors when tendering for jobs by making the task of pricing the bills of quantities as straightforward as possible.