[Code of Federal Regulations] [Title 19, Volume 1] [Revised as of April 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 19CFR122.51] [Page 612] TITLE 19--CUSTOMS DUTIES CHAPTER I--BUREAU OF CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY PART 122_AIR COMMERCE REGULATIONS--Table of Contents Subpart F_International Traffic Permit Sec. 122.51 Aircraft of domestic origin registered in the U.S. After Customs inspection of the aircraft, passengers, baggage and merchandise at the entry airport, commercial aircraft of domestic origin registered in the U.S. may be allowed to proceed to other airports in the U.S. without permit.