Authorised Courier registration requires financial security and bond and permits multi station operation subject to compliance and renewals. Registration as an Authorised Courier requires registration with the jurisdictional Commissioner of Customs, subject to prescribed initial terms and renewals differing by manual and electronic modes. Applicants must demonstrate financial viability by specified bank or asset proof and execute a bond with an acceptable security deposit (cash, postal instruments, National Savings instruments, or bank guarantee), accepting liability for any unpaid or short-levied duty with applicable interest. A registrant may transact at multiple airports or LCS on prescribed intimation but must furnish separate bond and security at each location; electronic-mode filing is available to existing registrants on satisfying electronic-mode conditions.