Where (possibly) valuable sites cannot be preserved in situ and must therefore be excavated, use is made of a Program of Requirements (POR) conform the Netherlands Archaeological Quality Norms. The disrupter of a possible site must ensure that a POR is compiled and approved by the relevant authority. This POR is brought about by the interested parties: client (in this case the disrupter) and contractor (POR writer). Thanks to the POR everybody knows what is expected of them, client, contractor and local government. The client has a grip on his project and knows how much (extra) time and money it will cost.
The POR is the basis for the most efficiënt possible set up of an archaeological project. It is a description of the reference frame for research and conditions to be satisfied. This document states the goal, research aims and manner of execution of the project and refers to any specialist involvement and constraints and limits such as when the development area must be cleared, report delivered, quality of personnel or manner of treatment of finds. Each section of the POR formulates demands on the research and how it is carried out. Beside the scientific aspects there can also be governmental requirements concerning archaeological research, excavations and conservation.
The POR is thé foundation for guaranteeing high quality archaeological fieldwork. It plays such an important role in the work process and the monument conservation cycle but also operates in the financial sphere being partially the basis for how tenders are put out.
A POR is compulsory whether for test trenches, a watching brief or an excavation and should be put together by a senior archaeologist and approved by a competent authority.