Registration for authorised importer premises requires application, prompt verification and strict decision timelines with limited extension. Registration for clearance at Authorised Importer Premises requires the importer to apply to the Commissioner of Customs in the prescribed form. The Commissioner must verify the premises and decide the application within seven days of verification. If verification or information is insufficient, the Commissioner may grant a further period of fifteen days for the importer to make the submission sufficient. References to the Commissioner include the Principal Commissioner of Customs.