5.24 Bid evaluation should be performed in accordance with the requirements of the contract, where the contract contains such requirements. Where the evaluation requirements are unclear or absent, the parties should draft and agree them at an early stage. Evaluation criteria, including their weighting, must be objective and formalised before bids are opened and will normally cover the price and quality of the proposal. An evaluation team, led by the PPP contractor and including representatives of the parties and their advisers, will need to be established before bids are received.