Customs area designation at the airport enables supervised import unloading and export loading under specified conditions. An approximately 540-acre area comprising the airport is designated as a Customs Area for import unloading and export loading, with specified boundary coordinates and landmarks. The Airports Authority of India retains control and custody of goods while obligated to provide security, lighting, firefighting, office amenities, and handling facilities; sealing and stuffing are to be under Customs supervision. Processing, examination, storage and clearance must occur within approved precincts, and no alterations to the area or buildings may be made without the Commissioner's prior permission.