
[Federal Register Volume 88, Number 164 (Friday, August 25, 2023)]
[Proposed Rules]
[Pages 58229-58232]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-18310]


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DEPARTMENT OF TRANSPORTATION

National Highway Traffic Safety Administration

49 CFR Parts 531, 533, 535, and 537

[NHTSA-2023-0022]
RIN 2127-AM55


Corporate Average Fuel Economy Standards for Passenger Cars and 
Light Trucks for Model Years 2027-2032 and Fuel Efficiency Standards 
for Heavy-Duty Pickup Trucks and Vans for Model Years 2030-2035; 
Correction

AGENCY: National Highway Traffic Safety Administration (NHTSA).

ACTION: Notice of proposed rulemaking; correction.

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SUMMARY: This document corrects technical errors in the proposed rule 
that appeared in the Federal Register on August 17, 2023, entitled 
``Corporate Average Fuel Economy Standards for Passenger Cars and Light 
Trucks for Model Years 2027-2032 and Fuel Efficiency Standards for 
Heavy-Duty Pickup Trucks and Vans for Model Years 2030-2035.'' That 
document proposed new Corporate Average Fuel Economy (CAFE) standards 
for passenger cars and light trucks to be manufactured in model years 
(MYs) 2027-2032, and new fuel efficiency standards for heavy-duty 
pickup trucks and vans (HDPUVs) to be manufactured in MYs 2030-2035.

DATES: Comments for the proposed rule published on August 17, 2023, at 
88 FR 56128, must be received on or before October 16, 2023.

FOR FURTHER INFORMATION CONTACT: Joseph Bayer, CAFE Program Division 
Chief, Office of Rulemaking, National Highway Traffic Safety 
Administration, 1200 New Jersey Avenue SE, Washington, DC 20590; email: 
[email protected]; phone: (202) 366-9540.

SUPPLEMENTARY INFORMATION: Prior to publication of the proposal for new 
CAFE standards for passenger cars and light trucks and new fuel 
efficiency standards for HDPUVs, NHTSA noticed several minor 
typographical errors that could not be corrected prior to printing. The 
needed corrections to the preamble replace the target function 
coefficient numbers in Table II-3, Table III-4, Table III-12, Table 
III-13, Table III-15, Table III-16, Table III-18, Table III-19, Table 
III-21, and Table III-22. NHTSA notes that these modifications do not 
change the values but simply provide additional significant figures for 
the coefficients. For the reader's reference, NHTSA has also made the 
corresponding changes to the target coefficient tables in the 
accompanying Technical Support Document (TSD) and Preliminary 
Regulatory Impact Assessment (PRIA), which are found in the docket for 
this rulemaking and on the agency's website. The needed correction to 
the proposed regulatory text clarifies that NHTSA is proposing to 
eliminate 5-cycle and alternative approvals for off-cycle fuel 
consumption incentive values (FCIVs) starting in MY 2027. This document 
also corrects the proposed regulatory text to clarify that multipliers 
for advanced, innovative, and off-cycle technologies for heavy-duty 
pickup trucks and vans are available through model year 2027.

I. Preamble Corrections

    In proposed rule FR Doc. 2023-16515, beginning on page 56128 in the 
issue of August 17, 2023, make the following corrections, in the 
SUPPLEMENTARY INFORMATION section.
    1. On page 56260, Table III-3 is corrected to read as follows:
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    \450\ The Passenger Car Function Coefficients `a',`b',`c', and 
`d' are defined in Draft TSD Chapter 1.2.1, Equation 1-1.

                              Table III-3--Passenger Car CAFE Target Function Coefficients for No-Action Alternative \450\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           66.95           66.95           66.95           66.95           66.95           66.95
b (mpg).................................................           50.09           50.09           50.09           50.09           50.09           50.09
c (gpm per s.f).........................................        0.000335        0.000335        0.000335        0.000335        0.000335        0.000335
d (gpm).................................................        0.001196        0.001196        0.001196        0.001196        0.001196        0.001196
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    2. On page 56261, Table III-4 is corrected to read as follows:

[[Page 58230]]



                               Table III-4--Light Truck CAFE Target Function Coefficients for No-Action Alternative \451\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           53.73           53.73           53.73           53.73           53.73           53.73
b (mpg).................................................           32.30           32.30           32.30           32.30           32.30           32.30
c (gpm per s.f).........................................        0.000374        0.000374        0.000374        0.000374        0.000374        0.000374
d (gpm).................................................        0.003272        0.003272        0.003272        0.003272        0.003272        0.003272
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    3. On page 56266, Table III-12 is corrected to read as follows:
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    \451\ The Light Truck Function Coefficients `a',`b',`c', and `d' 
are defined in Draft TSD Chapter 1.2.1, Equation 1-1.
    \467\ The Passenger Car Function Coefficients `a',`b',`c', and 
`d' are defined in Draft TSD Chapter 1.2.1.

                               Table III-12--Passenger Car CAFE Target Function Coefficients for Alternative PC1LT3 \467\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           67.63           68.31           69.00           69.70           70.40           71.11
b (mpg).................................................           50.60           51.11           51.63           52.15           52.68           53.21
c (gpm per s.f).........................................        0.000332        0.000328        0.000325        0.000322        0.000319        0.000316
d (gpm).................................................        0.001184        0.001172        0.001161        0.001149        0.001138        0.001126
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    4. On page 56266, Table III-13 is corrected to read as follows:
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    \468\ The Light Truck Function Coefficients `a',`b',`c', and `d' 
are defined in Draft TSD Chapter 1.2.1.

                                Table III-13--Light Truck CAFE Target Function Coefficients for Alternative PC1LT3 \468\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           55.39           57.10           58.87           60.69           62.56           64.50
b (mpg).................................................           33.30           34.33           35.39           36.48           37.61           38.78
c (gpm per s.f).........................................        0.000363        0.000352        0.000342        0.000331        0.000321        0.000312
d (gpm).................................................        0.003173        0.003078        0.002986        0.002896        0.002809        0.002725
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    5. On page 56267, Table III-15 is corrected to read as follows:
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    \469\ The Passenger Car Function Coefficients `a',`b',`c', and 
`d' are defined in Draft TSD Chapter 1.2.1.

                               Table III-15--Passenger Car CAFE Target Function Coefficients for Alternative PC2LT4 \469\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           68.32           69.71           71.14           72.59           74.07           75.58
b (mpg).................................................           51.12           52.16           53.22           54.31           55.42           56.55
c (gpm per s.f).........................................        0.000328        0.000322        0.000315        0.000309        0.000303        0.000297
d (gpm).................................................        0.001172        0.001149        0.001126        0.001103        0.001081        0.001060
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    6. On page 56267, Table III-16 is corrected to read as follows:
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    \470\ The Light Truck Function Coefficients `a',`b',`c', and `d' 
are defined in Draft TSD Chapter 1.2.1.

                                Table III-16--Light Truck CAFE Target Function Coefficients for Alternative PC2LT4 \470\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           55.96           58.30           60.73           63.26           65.89           68.64
b (mpg).................................................           33.64           35.05           36.51           38.03           39.61           41.26
c (gpm per s.f).........................................        0.000359        0.000345        0.000331        0.000318        0.000305        0.000293
d (gpm).................................................        0.003141        0.003015        0.002894        0.002779        0.002668        0.002561
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[[Page 58231]]

    7. On page 56269, Table III-18 is corrected to read as follows:
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    \471\ The Passenger Car Function Coefficients `a',`b',`c', and 
`d' are defined in Draft TSD Chapter 1.2.1.

                               Table III-18--Passenger Car CAFE Target Function Coefficients for Alternative PC3LT5 \471\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           69.02           71.16           73.36           75.63           77.97           80.38
b (mpg).................................................           51.64           53.24           54.89           56.58           58.33           60.14
c (gpm per s.f).........................................        0.000325        0.000315        0.000306        0.000297        0.000288        0.000279
d (gpm).................................................        0.001160        0.001125        0.001092        0.001059        0.001027        0.000996
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    8. On page 56269, Table III-19 is corrected to read as follows:
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    \472\ The Light Truck Function Coefficients `a',`b',`c', and `d' 
are defined in Draft TSD Chapter 1.2.1.

                                Table III-19--Light Truck CAFE Target Function Coefficients for Alternative PC3LT5 \472\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           56.55           59.53           62.66           65.96           69.43           73.09
b (mpg).................................................           34.00           35.79           37.67           39.65           41.74           43.94
c (gpm per s.f).........................................        0.000355        0.000338        0.000321        0.000305        0.000290        0.000275
d (gpm).................................................        0.003108        0.002953        0.002805        0.002665        0.002531        0.002405
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    9. On page 56270, Table III-21 is corrected to read as follows:
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    \473\ The Passenger Car Function Coefficients `a',`b',`c', and 
`d' are defined in Draft TSD Chapter 1.2.1.

                               Table III-21--Passenger Car CAFE Target Function Coefficients for Alternative PC6LT8 \473\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           71.23           75.77           80.61           85.75           91.23           97.05
b (mpg).................................................           53.29           56.69           60.31           64.16           68.26           72.61
c (gpm per s.f).........................................        0.000315        0.000296        0.000278        0.000262        0.000246        0.000231
d (gpm).................................................        0.001124        0.001057        0.000993        0.000934        0.000878        0.000825
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    10. On page 56270, Table III-22 is corrected to read as follows:
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    \474\ The Light Truck Function Coefficients `a',`b',`c', and `d' 
are defined in Draft TSD Chapter 1.2.1.

                                Table III-22--Light Truck CAFE Target Function Coefficients for Alternative PC6LT8 \474\
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                                                               2027            2028            2029            2030            2031            2032
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a (mpg).................................................           58.40           63.48           69.00           74.99           81.52           88.60
b (mpg).................................................           35.11           38.16           41.48           45.09           49.01           53.27
c (gpm per s.f).........................................        0.000344        0.000317        0.000291        0.000268        0.000247        0.000227
d (gpm).................................................        0.003010        0.002769        0.002548        0.002344        0.002156        0.001984
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II. Proposed Regulatory Language Corrections

    In proposed rule FR Doc. 2023-16515, beginning on page 56128 in the 
issue of August 17, 2023, make the following corrections, in the 
Regulatory Text section.

0
1. On page 56385, column 1, in Sec.  531.6, correct paragraph (b)(3) 
and paragraph (b)(4) introductory text to read as follows:


Sec.  531.6  [Corrected]

* * * * *
    (b) * * *
    (3) Off-cycle technologies using 5-cycle testing. Through MY 2026, 
a manufacturer may increase its fleet average fuel economy performance 
through the use of off-cycle technologies tested using the EPA's 5-
cycle methodology in accordance with 40 CFR 86.1869-12(c). The fuel 
consumption improvement is determined in accordance with 40 CFR 
600.510-12(c)(3)(ii).
    (4) Off-cycle technologies using the alternative EPA-approved 
methodology. Through MY 2026, a manufacturer may seek to increase its 
fuel economy performance through use of an off-cycle technology 
requiring an application request made to the EPA in accordance with 40 
CFR 86.1869-12(d).
* * * * *

[[Page 58232]]

0
2. On page 56387, column 1, in Sec.  533.6, correct paragraph (c)(4) 
and paragraph (c)(5) introductory text to read as follows:


Sec.  533.6  [Corrected]

* * * * *
    (c) * * *
    (4) Off-cycle technologies using 5-cycle testing. Through MY 2026, 
a manufacturer may increase its fleet average fuel economy performance 
through the use of off-cycle technologies tested using the EPA's 5-
cycle methodology in accordance with 40 CFR 86.1869-12(c). The fuel 
consumption improvement is determined in accordance with 40 CFR 
600.510-12(c)(3)(ii).
    (5) Off-cycle technologies using the alternative EPA-approved 
methodology. Through MY 2026, a manufacturer may seek to increase its 
fuel economy performance through use of an off-cycle technology 
requiring an application request made to the EPA in accordance with 40 
CFR 86.1869-12(d).
* * * * *
0
3. On page 56388, column 3, in Sec.  535.5, correct paragraph (a)(9) to 
read as follows:


Sec.  535.5  [Corrected]

    (a) * * *
    (9) Advanced, innovative and off-cycle technologies. For vehicles 
subject to Phase 1 standards, manufacturers may generate separate 
credit allowances for advanced and innovative technologies as specified 
in Sec.  535.7(f)(1) and (2). For vehicles subject to Phase 2 
standards, manufacturers may generate separate credits allowance for 
off-cycle technologies in accordance with Sec.  535.7(f)(2). Separate 
credit allowances for advanced technology vehicles cannot be generated; 
instead, manufacturers may use the credit multipliers specified in 
Sec.  535.7(f)(1)(ii) through model year 2027.
* * * * *

    Issued on August 21, 2023, in Washington, DC, under authority 
delegated in 49 CFR 1.95.
Ann Carlson,
Acting Administrator.
[FR Doc. 2023-18310 Filed 8-24-23; 8:45 am]
BILLING CODE 4910-59-P


