25 CFR 170.200 - How does BIA allocate IRR Program funds?
This section sets forth the Tribal Transportation Allocation Methodology (TTAM) that BIA uses to allocate IRR Program funds. After appropriate statutory and regulatory set-asides, as well as other takedowns, the remaining funds are allocated as follows:
(a) A statutorily determined percentage to a tribal transportation planning program (under 23 U.S.C. 204(j)); and
(b) The remainder to a pool of funds designated as “Remaining funding available for distribution.” This “Remaining funding available for distribution” pool is further allocated as follows:
(1) 5 percent to a discretionary pool for IRR High Priority Projects (IRRHPP); and
(2) 95 percent to pool for distribution by the following Relative Need Distribution Factor (RNDF) as defined in § 170.223:
(3) If the annual authorization is greater than $275 million, then the amount above $275 million, after appropriate statutory and regulatory set-asides, as well as other takedowns are applied, will be allocated as follows:
(i) 12.5 percent to the IRRHPP (§ 170.205);
(ii) 12.5 percent to the Population Adjustment Factor (PAF) (§ 170.220); and
(iii) 75 percent to the RNDF (§ 170.223).