The of the procurement procedure is to be carried out by approved control bodies, in accordance with the legal provisions applicable in the matter:

- periodic checks of tools, equipment and machines;

- periodic inspections of MV & LV electrical cabins, inspections of electrical installations on the gas network as well as various analyzes;

- non-destructive testing of welds.

For each lot, work agreements are established with all tenderers who have submitted regular tenders, taking into account the award criteria defined in the special specifications:

- the successful tenderer referred to as "active" (1 st classified) receives, depending on the contract award decision, a work agreement concluded between him and the contracting authority;

- each successful tenderer named “reserve” (2 ndclassified and following) receives, according to the contract award decision, a work agreement concluded between it and the contracting authority, with conditions indicating that it is "in reserve" at the time of the start of the execution phase of the contract. contract, and that in the event of the partial or total failure of the “active” contractor, the “reserve” contractor, contacted by the contracting authority in the order of contract award, becomes the new “active” contractor ". At this time, no negotiations are organized, and all the initial conditions of the work agreement remain fully applicable. However, if the cascade principle is implemented more than one year after the market notification,