(a) The portion of United States highway 54 from the west city limits of the city of Greensburg, then southwest to the western city limits of the city of Meade, then in a southwesterly direction from the eastern city limits of the city of Plains to the Kansas-Oklahoma border, is hereby designated as “the yellow brick road.” The secretary of transportation shall place signs along the highway right-of-way at proper intervals to indicate that the highway is “the yellow brick road,” except that any additional signs shall not be placed until the secretary has received sufficient moneys from gifts and donations to reimburse the secretary for the cost of placing such signs. The secretary of transportation may accept and administer gifts and donations to aid in obtaining suitable highway signs bearing the proper approved inscription.

(b) The city of Liberal is hereby designated as “the Land of Oz” and “the home of Dorothy of the wizard of Oz.”