Section 137, The Customs Regu- Citation

The baggage of persons proceeding on board an outwardbound aircraft or ship shall be loaded at such place as the proper offi'cer may appoint or, in the case of an aerodrome, from the place appointed by the Comptroller or directed by the proper officer for the examination of baggage, and, unless the proper officer otherwise allows, shall not be loaded or put off to be loaded until it has been examined by him and shall be handled by the passenger or by such persons only as such officer shall approve.