[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: 19CFR122.32] [Page 595] 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 D_Landing Requirements Sec. 122.32 Aircraft required to land. Any aircraft coming into the U.S., including Puerto Rico, from an area outside the U.S., is required to land, unless exempted by the Federal Aviation Administration.