170.404—What happens when a tribe uses its IRR Program construction funds for transportation planning?
In order for IRR Program construction funds to be concentrated on the projects within the inventory, a tribe may use up to $35,000 or 5 percent of its IRR Program construction funds, whichever is greater, for transportation planning. If a tribe exceeds this threshold, BIA will subtract the amount over the threshold from the tribe's CTC for the following year.