[Code of Federal Regulations] [Title 49, Volume 8] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR1546.101] [Page 349] TITLE 49--TRANSPORTATION CHAPTER XII--TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY PART 1546_FOREIGN AIR CARRIER SECURITY--Table of Contents Subpart B_Security Program Sec. 1546.101 Adoption and implementation. Each foreign air carrier landing or taking off in the United States must adopt and carry out a security program, for each scheduled and public charter passenger operation, that meets the requirements of-- (a) Section 1546.103(b) for each operation with an airplane having a passenger seating configuration of 61 or more seats; (b) Section 1546.103(b) for each operation that will provide deplaned passengers access to a sterile area, or enplane passengers from a sterile area, when that access is not controlled by an aircraft operator using a security program under part 1544 of this chapter or a foreign air carrier using a security program under this part; (c) Section 1546.103(b) for each operation with an airplane having a passenger seating configuration of 31 or more seats but 60 or fewer seats for which TSA has notified the foreign air carrier in writing that a threat exists; and (d) Section 1546.103(c) for each operation with an airplane having a passenger seating configuration of 31 or more seats but 60 or fewer seats, when TSA has not notified the foreign air carrier in writing that a threat exists with respect to that operation.