Customs bonded warehouse operations: permission, digital accounting and mandatory one-time-lock security for movement of goods. Regulatory framework for manufacturing and other operations in customs bonded warehouses under section 65: eligible applicants (licensed or applying under section 58) must apply to the Principal Commissioner or Commissioner of Customs with undertakings to maintain digital accounts, execute a specified bond, and declare input-output norms; permission is granted after verification and remains valid until cancelled or surrendered. Licensees must appoint a digitally signed warehouse keeper, maintain computerized accounting and security, use a one-time-lock for transport with defined affixing and verification responsibilities, keep detailed records preserved and backed up digitally, submit monthly digital returns, and comply with audit and penalty provisions.