Section 115: (1) A payment structure and amount

of payment for each procurement requirement shall be determined by best practices (2) A payment structure may include- (a) advance payments; (b) stage payments, which shall be linked to specific deliverables or milestones and which may be stated in percentage terms of the defined amount or in specific amounts; (c) regular interim payments, which shall be based on general progress or the work performed and may relate to a specified time period or a measurement of work performed; or (d) a retained payment, which shall be linked to a specific contract event, such as installation or warranty. (3) Except where best practices or market forces dictate, a procuring and disposing entity shall not enter into a contract which requires an advance payment (4) Where an advance payment is consistent with best practices, an advance payment security shall be required and the requirement for a payment security shall be stated in the contract documents (5) An advance payment shall be recovered from Payment subsequent payments made to a provider, which shall be security. subject to a percentage deduction equal to the percentage paid as advance payment. (6) An advance payment may be made for- (a) mobilisation or start up costs for the provision of works or services; or (b) the provision of supplies, such as items that have to be specially or custom manufactured. (7) Where best practices dictate, a procuring and disposing entity may enter into a contract in which an interim or stage payment is permitted. (8) Where an interim or stage payment is permitted, it shall comply with the following conditions- (a) the payment shall be linked to specific and verifiable deliverables, contract event, time period, or work, which should be stated in the contract; (b) individual payments shall not exceed the cost or value of the deliverable, period or work to which it is linked. (9) Where a procuring and disposing entity has determined that a retained payment is appropriate, the contract shall state- (a) the percentage or amount of the total contract value to be retained; (b) the period or the event at which the retention is to be released; and (c) the documents that shall prove or certify the period or event in paragraph (b).