(a) Just compensation shall be paid for the rights and interests of the sign and site owner in those outdoor advertising signs, displays, or devices which are lawfully existing under State law, in conformance with the terms of 23 U.S.C. 131 .(b)(1) Federal reimbursement will be made on the basis of 75 percent of the acquisition, removal and incidental costs legally incurred or obligated by the State.(2) Federal funds will participate in 100 percent of the costs of removal of those signs which were removed prior to January 4, 1975, by relocation, pursuant to the provisions of 23 CFR § 750.305(a)(2) , and which are required to be removed as a result of the amendments made to 23 U.S.C. 131 by the Federal-Aid Highway Amendments of 1974, Pub. L. 93-643 , section 109 , January 4, 1975. Such signs must have been relocated to a legal site, must have been legally maintained since the relocation, and must not have been substantially changed, as defined by the State maintenance standards, issued pursuant to 23 CFR 750.707(b) .(c) Title III of the Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970 (42 U.S.C. 4651 , et seq.) applies except where complete conformity would defeat the purposes set forth in 42 U.S.C. 4651 , would impede the expeditious implementation of the sign removal program or would increase administrative costs out of proportion to the cost of the interests being acquired or extinguished.(d) Projects for the removal of outdoor advertising signs including hardship acquisitions should be programed and authorized in accordance with normal program procedures for right-of-way projects.39 FR 27436, July 29, 1974; 39 FR 30349, Aug. 22, 1974, as amended at 41 FR 31198, July 27, 1976