Surety and security requirement eased for concessional-duty imports, with graded bank guarantee limits and conditions. Clarification sets graded norms for surety, bank guarantee or cash security to obtain concessional-duty benefits: government entities are exempt; Authorized Economic Operators and compliant GST-registered manufacturers/service providers must provide surety equal to duty foregone or a bank guarantee/cash security up to 5% of duty foregone if surety is unavailable; other importers face up to 25% bank guarantee/cash security. Duty foregone is computed by reference to duties absent the concessional procedure. Commissioner may direct higher security up to 100% with written reasons; relaxed terms require no prosecutions in the prior three financial years. Consignment-wise guarantees and self-renewal clauses are permitted.