CFR > Title 14 - Aeronautics and Space > CHAPTER III—COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER C—LICENSING (parts 411 to 461) > PART 420—LICENSE TO OPERATE A LAUNCH SITE > SUBPART C—License Terms and Conditions (§420.41 to §420.49) > 420.43—Duration.