The Acceptance Tests will be defined in the Contract, normally as described in Schedule 11. They will be monitored by an Independent Certifier, who is jointly appointed by the Contractor and Authority. (S)he is responsible for confirming that the Acceptance Tests have been passed or providing a report explaining why they were failed. The WIDP Contract (Clause 18) gives the Authority extensive rights over the appointment of the IC and the Contract Manager should be familiar with these rights and use them as necessary. The Independent Certifier's Deed of Appointment will be set out in Schedule 12 to the Authority's Contract.

Under the WIDP Contract (Clause 21.2), the Authority has the right to send a witness to the tests and to receive a copy of the Independent Certifier's Acceptance Test Certificate or report at the same time as the Contractor.

If there are Snagging Items identified by the Independent Certifier (Clause 21.5) the Contract Manager should ensure that any failure by the Contractor to deal such items within the time allowed under the Contract is escalated to the Liaison Committee.