Section 70

Vouchers in respect of contract payments shall refer to the full title and official reference number of the Contract, and shall be sup-ported by an appropriate certificate according to the type of work or service performed.

For example, progress payments on a work contract will be supported by a Certificate issued by an authorised officer or consultant ; pro-gress payments for services shall be supported by the Contractor's In-voice and the voucher shall be endorsed to the effect that the rates charged are in accordance with the terms of the contract.