This contract is for the delivery of Controlled Emission Toilet (CET) works at Northampton depot . The initial stage will be the award of a Pre- Construction Agreement (PCSA) for GRIP 5. Upon successful completion of the PCSA (GRIP 5) , the contracting authority will evaluate the detailed design and cost plan with a view to negotiating a separate works contract for GRIP Stages 6 to 8. The PCSA itself does not guarantee award of the full construction phase