[Code of Federal Regulations] [Title 14, Volume 4] [Revised as of January 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR375.25] [Page 386] TITLE 14--AERONAUTICS AND SPACE CHAPTER II--OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) PART 375--NAVIGATION OF FOREIGN CIVIL AIRCRAFT WITHIN THE UNITED STATES--Table of Contents Subpart C--Rules Generally Applicable Sec. 375.25 Unauthorized operations. No foreign civil aircraft shall be navigated in the United States unless authorized by this part. Commercial air operations (other than those authorized by Sec. 375.36) shall not be undertaken without a permit issued by the Department.