DDC places a very high priority on making prompt payments to our business partners. General instructions and forms are linked below.BDC 169SF - Contractor's Application for Payment - Short Form. Contractor • Construction. All subcontractors must submit a prequalification application prior to beginning work on an SCA project and prior to completing an SAF. Who should complete and sign the Contractor Responsibility Form? Informal proposals may be considered in selecting a low bidder where the public interest will be promoted thereby. 1. Gather project details and company information.