170.802—How is road maintenance funded?
(a)
The U.S. Congress funds a BIA program for the maintenance of IRR transportation facilities as defined in this part through annual appropriations for the Department of the Interior.
(b)
The States, counties, and local governments fund the maintenance of IRR transportation facilities that they own or have agreed to maintain.
(c)
Tribal governments, at their discretion, may also provide for the maintenance of IRR transportation facilities.