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Regulations Serial Number SR-323-A UNITED STATES OF AMERICA CIVIL AERONAUTICS BOARD WASHINGTON, D.C. Effective: December 15, 1948 Adopted: December 15, 1948 SPECIAL CIVIL AIR REGULATION LONG-DISTANCE DOMESTIC SCHEDULED AIR CARRIER OPERATIONS Special Civil Ai Regulation SR-323 (12 F. R. 3199) expires December 15, 1948. This regulation provides special operating rules for flights of scheduled air carrier aircraft at altitudes in excess of 12,500 feet east of longitude 100 W. and at altitudes in excess of 14,500 fleet west of longitude 100 W. in long-distance operations. Parts 40, 60, and 61 of the Civil Air Regulations impose undue operating restrictions on long-range, domestic, scheduled air carrier operations under the above conditions. Revi-sions of these parts which will provide for such operations are now being prepared. It is in the public interest to continue the long-distance operations authorized by Special Civil Air Regulation Serial Number SR-323, until these revisions are issued. Since this regulation imposes no additional burden on any person, it may be effect-tive without prior notice. The Civil Aeronautics Board hereby amends Special Civil Air Regulation SR-323 by striking the words "December 15, 1948" from the last sentence thereof, and substituting in lieu thereof the words "June 15, 1949." [Secs. 205(a), 601, 604, 52 Stat. 984, 1007, 1010; 49 U.S.C. 425(a), 551, 444.] By the Civil Aeronautics Board: /s/ M. C. Mulligan M. C. Mulligan Secretary (SEAL)