Answered: NEC ECC: Can the client limit payment to agreed target value only on option C.

The standard form operates on the basis that, in simple terms, the Contractor is paid PWDD less disallowed cost until Completion when an initial assessment of the Contractor’s share is carried out and included in the amount due (either as gain or as pain).

To move away from this principle would require a Z clause, so that is where you need to look. You obviously need to be comfortable that the contract you sign up to is in line with that you priced.