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 431—LAUNCH AND REENTRY OF A REUSABLE LAUNCH VEHICLE (RLV) > SUBPART B—Policy Review and Approval for Launch and Reentry of a Reusable Launch Vehicle (§431.21 to §431.28-431.30)