The X22 provisions work alongside the core clauses and main Option clauses just like with any other secondary Option.
So firstly you need to deal with the proposed instruction under clause 65 just like you would under any ECC, submit a quotation then the PM decides whether to accept it or not. If the quotation isn't accepted it would trigger a compensation event under clause 60.1(20), and if the PM also issues the instruction it would trigger another compensation event under clause 60.1(1) assuming the instruction relates to changed Scope.
If the instruction isn't issued then there's no change to Budget, however if it is issued and it changes the Client's requirements then the PM and Contractor have up to 4 weeks to agree the change, failing which the PM has the right to make an assessment.
So firstly you need to deal with the proposed instruction under clause 65 just like you would under any ECC, submit a quotation then the PM decides whether to accept it or not. If the quotation isn't accepted it would trigger a compensation event under clause 60.1(20), and if the PM also issues the instruction it would trigger another compensation event under clause 60.1(1) assuming the instruction relates to changed Scope.
If the instruction isn't issued then there's no change to Budget, however if it is issued and it changes the Client's requirements then the PM and Contractor have up to 4 weeks to agree the change, failing which the PM has the right to make an assessment.