contract nas1 98110 the following information has been determined to be exempt from disclosure and deleted modifications cost fee estimated maximum incentive for option periods advance agreement on indirect rates material is under 14 cfr 1206 300 b 4 which covers trade secrets commercial or financial obtained a person privileged confidential it held that matter purposes of this exemption if its would likely have either effects 1 impair government s ability obtain necessary in future 2 cause substantial harm competitive position whom was national parks conservation v morton 498 f2d 765 dc cir 1974 could contractor by providing competitors insight into company costing practices management approaches furthermore discourage other companies participating procurements thereby impairing complete accurate data