CFR > Title 14 - Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER D—AIRMEN (parts 60 to 67) > PART 63—CERTIFICATION: FLIGHT CREWMEMBERS OTHER THAN PILOTS > SUBPART A—General (§63.1 to §63.23) > 63.17—Tests: General procedure.