; (7) in section 7(b) ( 16 U.S.C. 1246(b) ), by striking or national historic each place such term appears and inserting , national historic, or national discovery ; (8) in section 7(c) ( 16 U.S.C. 1246(c) )— (A) by striking scenic or national historic each place it appears and inserting scenic, national historic, or national discovery ; (B) in the second proviso, by striking scenic, or national historic and inserting scenic, national historic, or national discovery ; and (C) by striking , and national historic and inserting , national historic, and national discovery ; (9) in section 7(d) ( 16 U.S.C. 1246(d) ), by striking or national historic and inserting national historic, or national discovery ; (10) in section 7(e) ( 16 U.S.C. 1246(e) ), by striking or national historic each place such term appears and inserting , national historic, or national discovery ; (11) in section 7(f)(2) ( 16 U.S.C. 1246(f)(2) ), by striking National Scenic or Historic Trail and inserting national scenic, historic, or discovery trail ; (12) in section 7(h)(1) ( 16 U.S.C. 1246(h)(1) ), by striking or national historic and inserting national historic, or national discovery ; and (13) in section 7(i) ( 16 U.S.C. 1246(i) ), by striking or national historic and inserting national historic, or national discovery .