Consultants carrying out the role of certifier Consultants such as employers’ agents, contract administrators, project managers and architects are often required to act as certifier under a building contract. For example, under several of the JCT forms of contract, including the Standard Building Contract and Intermediate Building Contract, the architect/contract administrator is responsible for making a number of decisions, including issuing the practical completion certificate and certificate of making good (see also Practice Note:Administration of construction contracts). Under the JCT Design and Build Contract 2011/2016/2024, the employer’s agent takes on this role. Under the NEC3/NEC4 contracts the project manager has the role of certifier, and there are equivalent roles under other standard form building contracts (see for example Practice Note: FIDIC contracts 2017—the role of the Engineer). Acting in the role of certifier requires the consultant to act in a decision making capacity, and the role carries with it duties to act fairly and impartially as between the employer and contractor. Consultants do not usually have such duties when they are acting solely on behalf of one party. What