Customs-Trade Partnership Against Terrorism (C-TPAT) Audit consultancy provider in Delhi. This form of audit is a voluntary government-business initiative that is aimed at building cooperative relationships that improve the security of the international supply chain as well as U.S. border. According to Customs-Trade Partnership Against Terrorism, U.S. Customs and Border Protection are able to provide the highest form of cargo security via close cooperation with those that own the international supply chain (such as carriers, importers, licensed customs brokers, consolidators and manufacturers). Businesses must ensure the integrity of their security practices. They must also communicate and verify the security guidelines of their partners within the supply chain.