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Highway Statistics 2015


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FEDERAL-AID HIGHWAY PROGRAM APPORTIONMENT FORMULAS - FY 2016-2020
PROVIDED BY THE FIXING AMERICA'S SURFACE TRANSPORTATION (FAST) ACT

February 2017
Table FA-4A

I. Amount authorized

The FAST Act authorizes a total combined amount ($39.7 billion in FY 2016, $40.5 billion in FY 2017, $41.4 billion in FY 2018, $42.4 billion in FY 2019, and $43.4 billion in FY 2020) in contract authority to fund six formula programs (including certain set-asides within the programs described below):

II. Determination of each State’s apportionment

  1. Reservation of supplemental STBG and NHPP funds

    Before making apportionments to States, the FAST Act requires FHWA to reserve from the total amount authorized for the apportioned programs: (1) for each of FY 2019 and 2020, an amount to supplement the base apportionments for the NHPP (“supplemental NHPP”); and (2) for each of FY 2016-2020, an amount to supplement the base apportionments for the STBGP (“supplemental STBG”) [23 U.S.C 104(h)(1) and (2)]. The remainder, net of these amounts, is referred to as the “base apportionment.” [23 U.S.C 104(i)]

  2. Calculation of a State’s initial apportionment (in three components)

    For each of these three amounts (supplemental NHPP, supplemental STBGP, and base apportionment), FHWA determines a State’s initial apportionment, calculating for the State a share of the amount equal to the State’s share of FY 2015 apportionments. [23 U.S.C. 104(c)]

  3. Adjustment based on Trust fund contributions

    FHWA then adjusts each of the three amounts, if necessary, to ensure that the sum of the three amounts received by each State is at least 95% of the dollar amount of its contributions to the Highway Account of the Highway Trust Fund in the most recent year for which data are available. Any upward adjustment based on this comparison is offset by proportional decreases to the amounts of other States. [23 U.S.C 104(c)]

III. Division of State's apportionment among programs

Step Program Calculation of Amount
A. NHFP
[23 U.S.C. 104(b)(5)]
Funding in an amount equal to the national amount for the program:
FY $ billions
2016 1.15
2017 1.10
2018 1.20
2019 1.35
2020 1.50
…multiplied by the following ratio: State's base apportionment for FY
Nat'l total base apportionment for FY
B. CMAQ
[23 U.S.C. 104(b)(4)]
Funded in an amount equal to the State's base apportionment (net of Step A), multiplied by the following ratio: State's FY 2009 CMAQ $
State's total FY 2009 apportionments
C. Metropolitan Planning
[23 U.S.C. 104(b)(5)(D) & (6)]
Funded in an amount equal to--
  1. the State's base apportionment net of Step A plus
  2. the State's NHFP funding under Step A multiplied by the following ratio:
State's FY 2009 Metro Planning $
State's total FY 2009 apportionments
D. NHPP
[23 U.S.C. 104(b)(1)]

STBG
[23 U.S.C 104(b)(2)]

HSIP
[23 U.S.C. 104(b)(3)]
The remainder of the State's base apportionment (net of amounts under Steps A through C) is divided on the following proportions: 63.7% to NHPP

29.3% to STBG

7.0% to HSIP
…and then the NHPP and STBG amounts are increased by the "supplemental NHPP and STBG" amounts calculated in Step II.B.
E. Rail-Highway Crossing Set-aside
[23 U.S.C. 130 & §126 of Division L of Pub. L. 114-113]
Funded by a set-aside from the States' initial HSIP amounts prior to apportionment--
  1. based on apportionment formula under 23 U.S.C. 130; and
  2. such that the national total for the program is as follows:
FY $ millions
2016 350 1/
2017 230
2018 235
2019 240
2020 245
F. Safety-related Activities set-aside 2/
[§ 1519(a) of Pub. L. 112-141, as amended by the FAST Act]
Funded by a set-aside from the States' initial HSIP amounts prior to apportionment--
  1. determined proportionally based on the initial HSIP amounts; and
  2. such that the national total is $3.5 million for each fiscal year.

1/ The FAST Act set aside $225 million for FY 2016, but the later enacted FY 2016 Appropriations Act increased the set-aside to $350 million.

2/ Set-aside amount is not provided to States as apportionment, but instead funds an allocated program for safety-related activities and clearinghouses. Therefore, these funds are not included in Table FA-4.

 

Page last modified on March 16, 2017
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