Section 15. Repeals.--(a) The act of April 28, 1961 (P.L.101), entitled "An act prohibiting the erection and maintenance of certain advertising devices along highways on the National System of Interstate and Defense Highways; providing for the acquisition of such devices and property use in connection with such devices by the Secretary of Highways; and providing penalties for violations," is hereby repealed.
(b) All other acts and parts of acts are repealed in so far as they are inconsistent herewith.