The remuneration of engineers for the study of works is freely determined upon valid agreement of the parties. In the absence of such an agreement, there is a regulation on the legal remuneration of qualified engineers and architects (Presidential Decree 696/1974 on Engineers' Fees). As for public contracts for studies and technical provisions, the estimated value of the contracts also includes the pre-estimated fees on each part of the studies and the technical provisions (Law 4412/2016 on Public Procurement, Article 53 (8)).