FMSCA Regulation 372.237
372.237 Cameron, Hidalgo, Starr, and Willacy Counties, TX.
(a) Transportation within a zone comprised of Cameron, Hidalgo, Starr, and Willacy Counties, TX, by motor carriers of property, in interstate or foreign commerce, not under common control, management, or arrangement for shipment to or from points beyond such zone, is partially exempt from regulation under 49 U.S.C. 13506(b)(1).
(b) To the extent that commercial zones of municipalities within the four counties (as determined under 372.241) extend beyond the boundaries of this four-county zone, the areas of such commercial zones shall be considered to be part of the zone and partially exempt from regulation under 49 U.S.C. 13506(b)(1).
