CFR > Title 14 - Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER G—AIR CARRIERS AND OPERATORS FOR COMPENSATION OR HIRE: CERTIFICATION AND OPERATIONS (parts 110 to 139) > PART 133—ROTORCRAFT EXTERNAL-LOAD OPERATIONS > SUBPART C—Operating Rules and Related Requirements (§133.31 to §133.39)