The IRR Inventory defined in this part will expand the IRR Inventory for funding purposes to include:
(a) All roads, highway bridges, and other eligible transportation facilities that were previously approved in the BIA Road System in 1992 and each following year;
(b) All Indian reservation roads constructed using Highway Trust funds since 1983;
(c) All designated IRR routes (25 CFR 170.442-170.444);
(d) Non-road transportation related facilities; and
(e) Other applicable IRR transportation facilities.