The Acting Secretary of State to the Minister in Costa Rica ( Sack )
Sir: In compliance with the request of Mr. Trueblood contained in the last paragraph of despatch No. 1663 of October 13, 1933, to be advised as soon as the appropriate American authorities have been instructed that no special authorization from the Government of the United States is necessary for the entry into the United States of civil aircraft of Costa Rican registry, you are informed that the appropriate authorities of this Government have been so instructed.
In this connection there is enclosed, for transmission to the Government of Costa Rica, a copy of Aeronautics Bulletin No. 7–C of the United States Department of Commerce, entitled “Department of Commerce Regulations Governing Entry and Clearance of Aircraft, Effective as Amended April 7, 1931, and United States Airport of Entry Regulations, Effective November 1, 1931 [”].
Very truly yours,