Amends the VA transportation grant program to expand who may receive grants by adding Tribal and Native Hawaiian organizations, defines those organizations by reference to existing law, and sets a standard maximum grant amount of $50,000 (with a possible higher cap for certain counties). It also replaces a prior fixed funding amount for earlier years with open-ended authority—"such sums as may be necessary"—for fiscal years 2025–2029, giving funding flexibility but not guaranteeing specific funding levels.