Pub. L. 114-94, div. A, tit. I, subtit. D, sec. 1435
APPALACHIAN DEVELOPMENT HIGHWAY SYSTEM.
SEC. 1435. APPALACHIAN DEVELOPMENT HIGHWAY SYSTEM. Section 1528 of MAP–21 (40 U.S.C. 14501 note; Public Law 112–141) is amended—(1) by striking “2021” each place it appears and inserting “2050”; and(2) by striking “shall be 100 percent” each place it appears and inserting “shall be up to 100 percent, as determined by the State”.