A: Not all Defence tenders require security clearances, but many do – particularly those involving classified information, secure facilities, or sensitive technology. Common levels include Baseline, NV1, NV2, and Positive Vetting (PV). Some contracts also require clearance through membership with the Defence Industry Security Program (DISP). BidWrite can advise you on the clearance requirements for your tender, and if additional help is required to meet security criteria, we’ll refer you to our specialist Defence security partners De Stefano & Co.