Main statutory citation(s): MAP-21 §1105, 1122; 23 USC 104, 130, 213
Prior to MAP-21, each apportioned program had its own formula for distribution, and the total amount of Federal assistance a State received was the sum of the amounts it received for each program. MAP-21 instead provides a total apportionment for each State and then divides that State amount among individual apportioned programs.
Total funding for Federal-aid highway formula programs
MAP-21 authorizes a total combined amount ($37.5 billion in FY13 and $37.8 billion in FY14) in contract authority to fund five formula programs (including certain setasides within the programs described below):
- National Highway Performance Program (NHPP);
- Surface Transportation Program (STP);
- Highway Safety Improvement Program (HSIP);
- Congestion Mitigation and Air Quality Improvement Program (CMAQ); and
- Metropolitan Planning Program.
Division of total apportioned amount among States
MAP-21 requires FHWA to divide the total authorized amount among the States in the following manner:
- In FY13, the State receives the same total apportionment that it received in FY12.
- In FY14, the State receives a total apportionment share equal to the State's share of FY12 formula funds. The resulting total apportionment is adjusted, if necessary, to ensure that the State receives at least 95% of the dollar amount of its contributions to the Highway Account of the Highway Trust Fund.
Division of a State's apportionment among programs
After determining the total apportionment for a State, MAP-21 divides that apportionment among the State's individual formula programs in the following manner:
[23 USC 104(b)(4)]
|Funded in an amount equal to the State's total apportionment multiplied by the following ratio:||State's FY09 CMAQ $
[23 USC 104(b)(5)]
|Funded in an amount equal to the State's total apportionment multiplied by the following ratio:||State's FY09 Metro Planning $
|NHPP [23 USC 104(b)(1)]
STP [23 USC 104(b)(2)]
HSIP [23 USC 104(b)(3)]
|The remainder (net of CMAQ and Metro Planning) is divided based on the following proportions:||63.7% to NHPP
29.3% to STP
7.0% to HSIP
|Railway Highway Crossings
[23 USC 130]
|Funded with an amount set aside from the State's HSIP apportionment –
|Transportation Alternatives (TA)
[§1122; 23 USC 213]
|Funded via setaside from NHPP, STP, HSIP, CMAQ, & Metro Planning: