The main changes to adjudication procedure under the construction act are the amended act will apply to construction contracts whether made in writing or made orally it will be even more important to ensure that contracts are executed properly and that there is no scope for arguing about verbal agreements. Adjudication an overview under the act parties to a construction contract will be entitled to refer disputes to adjudication based on the uk model that flow from a proper invoice under a contract including claims for valuation of work services and materials and other monetary claims made in accordance with the contract as well as set offs deductions and delay claims this dispute resolution method will be mandatory on all construction projects public and private and all sizes and . The act allows parties to agree to an adjudication procedure in their contract if the parties fail to do so then the procedures under the act govern section 136 the act provides little specific guidance on how the adjudication should be conducted. The act allows parties to agree to an adjudication procedure in their contract if the parties fail to do so then the procedures under the act govern section 136 the act provides little specific guidance on how the adjudication should be conducted