Inevitably, there will be projects for which two-stage tendering will not be appropriate. While the guidelines state that it can be adapted to a project management structure, the need for a pre-construction phase could hinder the objective of this procurement strategy, namely the rapid start of work. Similarly, for projects where employers have a finalized project capable of identifying potential risk areas, employers can accurately predict the expected amount of the contract without having to spend time and expense on a two-step tender. The core of a PCSA is the list of services that the contractor must provide and that must be tailored to the particular circumstances. The approach is based on the contractor who, as part of the project team, is working to advance and finalize the design and improve the accuracy of pricing/programming. JCT-PCSAs do not contain model services, which is unfortunate, as an example of a menu of services offered would be useful for many parties. General JCT PCSA does not cover this possibility, but the JCT PCSA specialist is the developer`s vehicle for ordering and allows the benefit of the agreement to be awarded to the selected primary contractor. Note, however, that it is the transfer of the benefit, not the charge, i.e. the payment obligations would remain with the developer. PCSas have their advantages and declarations of intent may be overexploited in practice, but both will likely continue to have their place in future construction and engineering projects. In a two-stage tender, the first phase is for the employer to select a preferred contractor by tender at an early stage of design development. Bidders submit a lump sum proposal for preliminary work, a program and method statement, but instead of being a flat price for the construction phase, this is an offer only for overhead, profits and preliminary work.

After the selection, preferred employers and contractors work together, as it provides factory packages for fixed-price packages. If most parcels are validated, the contractor will submit its offer in the second phase and the employer will decide whether to accept it and enter into a lump sum contract for the entire plant. When required to construct in accordance with the CSSA, it is not responsible for the design of a contractor that has been selected in a two-stage tendering process, unless the construction contract is concluded.