Most fixed-price agreements have a clause or section containing special conditions regarding the filing and/or acceptance of a final report or product. This is usually linked to the final payment. If the conditions are not met as provided for in this section, it is the fixed price or not, the institution has breached the agreement and the full refund cannot come. In case of liability in case of late deposit or breach of contractual conditions, the Principal Investigator or the department will reimburse the corresponding non-commune account. It is therefore essential that all parties fulfil the conditions laid down in the Agreement on Fixed Prices General construction law is in principle governed by Dutch civil law, as codified in the Dutch Civil Code. In the Dutch Civil Code, the Dutch legislature has created a specific section for a number of special agreements, including specific rules for general works contracts. Fixed price agreements generally have the following characteristics (not all features should be included in a fixed price agreement): development of cost estimates: given the increased financial risk to the university associated with fixed-price contracts and the need to reduce large residual balances, the evolution of cost estimates should be carried out with caution. . . .