Project import contract registration required before clearance; provisional duty bond accepted and registration number issued for compliance. Registration under the Project Import Regulations, 1986 requires written application and registration of contracts at the Customs House before clearance; supporting documents include the deed of contract or a purchase order satisfying contract elements, licences, recommendatory letters, project reports, foreign collaboration agreements, technical specifications, and a Continuity Bond with cash deposit and bank guarantee. After documents and eligibility are satisfied, the Project Import Group accepts a provisional duty bond, records the contract and issues a Project Contract Registration Number for future reference.