15 U.S. Code § 265 - Transfer of certain territory to standard central-time zone
The Panhandle and Plains sections of Texas and Oklahoma are transferred to and placed within the United States standard central-time zone.
The Secretary of Transportation is authorized and directed to issue an order placing the western boundary line of the United States standard central-time zone insofar as the same affect Texas and Oklahoma as follows:
Beginning at a point where such western boundary time zone line crosses the State boundary line between Kansas and Oklahoma; thence westerly along said State boundary line to the northwest corner of the State of Oklahoma; thence in a southerly direction along the west State boundary line of Oklahoma and the west State boundary line of Texas to the southeastern corner of the State of New Mexico; thence in a westerly direction along the State boundary line between the States of Texas and New Mexico to the Rio Grande River; thence down the Rio Grande River as the boundary line between the United States and Mexico:
1983—Pub. L. 97–449 substituted “Secretary of Transportation” for “Interstate Commerce Commission”.
Section 2 of act Mar. 4, 1921, repealed all conflicting laws and parts of laws.