Document headings vary by document type but may contain
                    the following: the agency or agencies that issued and signed a document
the number of the CFR title and the number of each part
                      the document amends, proposes to amend, or is directly
                      related to
the agency docket number / agency internal file number
the RIN which identifies each regulatory action listed in
                      the Unified Agenda of Federal Regulatory and Deregulatory
                      Actions See the
                    Document Drafting Handbook
                    for more details.
 Environmental Protection Agency 40 CFR Parts 85, 86, 1036, 1037, 1065, 1066, and 1068 Department of Transportation National Highway Traffic Safety Administration 49 CFR Parts 523, 534, and 535
[EPA-HQ-OAR-2010-0162; FRL-9219-4; NHTSA 2010-0079]
RIN 2060-AP61; RIN 2127-AK74
 AGENCIES: Environmental Protection Agency (EPA) and National Highway Traffic Safety Administration (NHTSA), Department of Transportation (DOT).
 ACTION: Proposed rules; correction.
 SUMMARY: NHTSA and EPA published in the 
                        **Federal Register**
                         of November 30, 2010, proposed rules to establish a comprehensive Heavy-Duty National Program that will increase fuel efficiency and reduce greenhouse gas emissions for on-road heavy-duty vehicles, responding to the President's directive on May 21, 2010, to take coordinated steps to produce a new generation of clean vehicles. That document inadvertently contained some incorrect fuel consumption values in NHTSA-specific tables in the preamble that resulted from using an incorrect conversion factor for determining CO2
                         emissions to equivalent fuel consumption for gasoline fuel. That document also contained some rounding errors in NHTSA-specific tables in the preamble. This document corrects the rounding errors by adopting a uniform rounding approach for all fuel consumption equivalents for those NHTSA-specific tables and makes the appropriate corrections to the conversions.
 FOR FURTHER INFORMATION CONTACT: Rebecca Yoon, Office of Chief Counsel, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590. Telephone: (202) 366-2992.


SUPPLEMENTARY INFORMATION: NHTSA and EPA published in the 
                    **Federal Register**
                     of November 30, 2010, proposed rules to establish a comprehensive Heavy-Duty National Program that will increase fuel efficiency and reduce greenhouse gas emissions for on-road heavy-duty vehicles, responding to the President's directive on May 21, 2010, to take coordinated steps to produce a new generation of clean vehicles. That document inadvertently contained some incorrect fuel consumption values in NHTSA-specific tables in the preamble that resulted from using an incorrect conversion factor for determining CO2
                     emissions to equivalent fuel consumption for gasoline fuel. The correct values that should have been used in the document are a factor of 1,018 grams of CO2
                     per gallon of diesel for conversion of diesel fuel, and a factor of 8,887 grams of CO2
                     per gallon of gasoline for gasoline. That document also contained some rounding errors in NHTSA-specific tables in the preamble. This document corrects the rounding errors by adopting a uniform rounding approach for all fuel consumption equivalents and makes the 
                    ( print page 81953)
                    appropriate corrections to the conversions. These changes are made to several NHTSA-specific tables and in several places in the NHTSA-specific text of the preamble. The proposed regulatory text for both NHTSA and EPA is not affected. In FR Doc. 2010-28120, appearing on page 74152 in the 
                    **Federal Register**
                     of Tuesday, November 30, 2010, the following corrections are made: 1. On page 74176, correct Table II-1 and accompanying footnote 39 by revising them to read as follows: Table II-1—Heavy-Duty Combination Tractor Emissions and Fuel Consumption Standards
Day cab
Sleeper cabClass 7
Class 8
Class 82014 Model Year CO2
                             Grams per Ton-MileLow Roof
104
79
65Mid Roof
104
79
70High Roof
118
87
732014-2016 Model Year Gallons of Fuel per 1,000 Ton-Mile 39Low Roof
10.2
7.8
6.4Mid Roof
10.2
7.8
6.9High Roof
11.6
8.5
7.22017 Model Year CO2
                             Grams per Ton-MileLow Roof
103
78
64Mid Roof
103
78
69High Roof
116
86
712017 Model Year Gallons of Fuel per 1,000 Ton-MileLow Roof
10.1
7.7
6.3Mid Roof
10.1
7.7
6.8High Roof
11.4
8.4
7.0
 2. On page 74194, 
                    
                     correct Tables II-7 and II-8 by revising them to read as follows: Table II-2—Coefficients for Proposed HD Pickup and Van Target Standards 74
Model year
a
b
c
dDiesel Vehicles:2014
0.0478
368
0.000470
3.612015
0.0474
366
0.000466
3.602016
0.0460
354
0.000452
3.482017
0.0445
343
0.000437
3.372018 and later
0.0416
320
0.000409
3.14Gasoline Vehicles:2014
0.0482
371
0.000542
4.172015
0.0479
369
0.000539
4.152016
0.0469
362
0.000528
4.072017
0.0460
354
0.000518
3.982018 and later
0.0440
339
0.000495
3.81
 Table II-3—Coefficients Proposed for NHTSA's First Alternative and EPA's Alternative HD Pickup and Van Target Standards
Model year
a
b
c
dDiesel Vehicles:2014 a
0.0478
368
0.000470
3.612015 a
0.0474
366
0.000466
3.602016-2018
0.0440
339
0.000432
3.332019 and later
0.0416
320
0.000409
3.14Gasoline Vehicles:2014 a
0.0482
371
0.000542
4.172015 a
0.0479
369
0.000539
4.15( print page 81954)2016-2018
0.0456
352
0.000513
3.962019 and later
0.0440
339
0.000495
3.81
 3. On page 74202, correct Table II-11 by revising it to read as follows: Table II-4—Proposed Vocational Diesel Engine Standards Over the Heavy-Duty FTP Cycle
Model year
Standard
Light
                             heavy-duty 
                             diesel
Medium heavy-duty diesel
Heavy heavy-duty diesel2014-2016
CO*2*
                             Standard (g/bhp-hr)
600
600
567Voluntary Fuel Consumption Standard (gallon/100 bhp-hr)
5.89
5.89
5.572017 and Later
CO*2*
                             Standard (g/bhp-hr)
576
576
555Fuel Consumption (gallon/100 bhp-hr)
5.66
5.66
5.45
 4. On page 74202, in the third column, correct the first sentence of the first complete paragraph by revising it to read as follows: “The baseline 2010 model year CO2
                     performance of these heavy-duty gasoline engines over the Heavy-duty FTP cycle is 660 g CO2
                    /bhp-hr (7.43 gal/100 bhp-hr) in 2010 based on non-GHG certification data provided to EPA by the manufacturers.” 5. On page 74202, in the third column, correct the first sentence of the second complete paragraph by revising it to read as follows: “NHTSA is proposing a 7.06 gallon/100 bhp-hr standard for fuel consumption while EPA is proposing a 627 g CO2
                    /bhp-hr standard tested over the Heavy-duty FTP, effective in the 2016 model year.” 6. On page 74220, correct Table III-2 by revising it to read as follows: Table III-5—Class 7 and 8 Tractor Baseline CO2
                         Emissions and Fuel Consumption
Class 7
Class 8Day cab
Day cab
Sleeper cabLow/mid roof
High roof
Low/mid roof
High roof
Low roof
Mid roof
High roofCO2
                             (grams CO2
                            /ton-mile)
111
130
84
96
76
81
89Fuel Consumption (gal/1,000 ton-mile)
10.9
12.8
8.3
9.4
7.5
8.0
8.6
 7. On page 74225, correct Table III-6 by revising it to read as follows:  Table III-6—Proposed 2014 and 2017 Model Year Tractor Reductions
Class 7
Class 8Day cab
Day cab
Sleeper cabLow/mid roof
High roof
Low/mid roof
High roof
Low roof
Mid roof
High roof2014 Model Year2014 MY Voluntary Fuel Consumption Standard (gallon/1,000 ton-mile)
10.2
11.6
7.8
8.5
6.4
6.9
7.2( print page 81955)2014 MY CO2
                             Standard (grams CO2
                            /ton-mile)
104
118
79
87
65
70
73Percent Reduction
6%
9%
6%
9%
15%
14%
18%2017 Model Year2017 MY Fuel Consumption Standard (gallon/1,000 ton-mile)
10.1
11.4
7.7
8.4
6.3
6.8
7.02017 MY CO2
                             Standard (grams CO2
                            /ton-mile)
103
116
78
86
64
69
71Percent Reduction
7%
11%
7%
10%
16%
15%
20%
 8. On page 74244, correct Table III-12 by revising it to read as follows: Table III-7—Baseline Vocational Vehicle Performance
Vocational vehicleLight heavy-duty
Medium
                             heavy-duty
Heavy heavy-dutyFuel Consumption Baseline (gallon/1,000 ton-mile)
37.5
22.3
11.3CO2
                             Baseline (grams CO2
                            /ton-mile)
382
227
115
 9. On page 74245, correct Table III-14 by revising it to read as follows: Table III-8—Proposed Vocational Vehicle Standards and Percent Reductions
Vocational vehicleLight heavy-duty
Medium
                             heavy-duty
Heavy heavy-duty2016 MY Fuel Consumption Standard (gallon/1,000 ton-mile)
35.2
20.8
10.72017 MY Fuel Consumption Standard (gallon/1,000 ton-mile)
33.8
20.0
10.52014 MY CO2
                             Standard (grams CO2
                            /ton-mile)
358
212
1092017 MY CO2
                             Standard (grams CO2
                            /ton-mile)
344
204
107Percent Reduction from 2010 baseline in 2014 MY
6%
7%
5%Percent Reduction from 2010 baseline in 2017 MY
10%
10%
7%
 
 
 10. On page 74245, in the third column, correct the second sentence of the third paragraph by revising it to read as follows: “The agencies are projecting a 100% application rate of this technology package to the heavy-duty gasoline engines, which results in a CO2
                     standard of 627 g/bhp-hr and a fuel consumption standard of 7.06 gallon/100 bhp-hr.” 11. On page 74440, correct Table 1 by revising it to read as follows: Table 1—Equation Coefficients for Vehicle Configuration Target Standards
Model year
c
d**Alternative 1—Fixed Target Standards**Compression-Ignition Vehicle Coefficients for Model Years 2016 and Later2016 through 2018
0.000432
3.332019 and later
0.000409
3.14Spark-Ignition Vehicle Coefficients for Model Years 2016 and Later2016 through 2018
0.000513
3.962019 and later
0.000495
3.81**Alternative 2—Phased-in Target Standards Compression-Ignition Vehicle Coefficients for Model Years 2016 and Later**2016
0.000452
3.482017
0.000437
3.372018 and later
0.000409
3.14Spark-Ignition Vehicle Coefficients for Model Years 2016 and Later2016
0.000528
4.072017
0.000518
3.982018 and later
0.000495
3.81
 12. On page 74442, correct Table 2 by revising it to read as follows: Table 2—Voluntary Compliance Equation Coefficients for Vehicle Fuel Consumption Standards
Model year
c
dCompression-Ignition Vehicle Coefficients for Voluntary Compliance in Model Years 2013 Through 20152013 and 14
0.000470
3.612015
0.000466
3.60Spark-Ignition Vehicle Coefficients for Voluntary Compliance in Model Years 2013 Through 20152013 and 14
0.000542
4.172015
0.000539
4.15
 13. On page 74444, correct Table 4 by revising it to read as follows: Table 4—Truck Tractor Fuel Consumption Standards
Regulatory subcategories
Day cab
Sleeper cabClass 7
Class 8
Class 8Fuel Consumption Standards (gallons per 1000 ton-miles) Effective for Model Years 2017 and LaterLow Roof
10.1
7.7
6.3Mid Roof
10.1
7.7
6.8High Roof
11.4
8.4
7.0Fuel Consumption Standards (gallons per 1000 ton-miles) Effective for Model Years 2013 to 2016Low Roof
10.2
7.8
6.4Mid Roof
10.2
7.8
6.9High Roof
11.6
8.5
7.2
 14. On page 74445, correct Table 5 by revising it to read as follows: Table 5—Heavy-Duty Engine Standards
Fuel Consumption Standards (gallons per 100 bhp-hr)Regulatory subcategory
Light heavy-duty compression-ignition engine
Medium heavy-duty compression-ignition engine
Heavy heavy-duty compression-ignition engine
Spark-ignition
                             enginesTruck Application
Vocational
Vocational
Tractor
Vocational
Tractor
All.Effective Model Years
2017 and later
2016 and later.Fuel Consumption Standard
5.66
5.66
4.78
5.45
4.52
7.06.Fuel Consumption Standards for Voluntary Compliance (gallons per 100 bhp-hr)Regulatory subcategory
Light heavy-duty diesel engine
Medium heavy-duty diesel engine
Heavy heavy-duty diesel engine
Spark-ignition
                             engineTruck Application
Vocational
Vocational
Tractor
Vocational
Tractor
All.Effective Model Years
2013 through 2016
2013 through 2015.( print page 81957)Voluntary Fuel Consumption Standard
5.89
5.89
4.93
5.57
4.67
7.06.
 Issued: December 20, 2010. Joseph S. Carra, Acting Associate Administrator for Rulemaking, National Highway Traffic Safety Administration, Department of Transportation. Issued: December 20, 2010. Margo Tsirigotis Oge, Director, Office of Transportation Air Quality, Environmental Protection Agency.


# Footnotes

39.
    
                         Manufacturers may voluntarily opt-in to the NHTSA fuel consumption program in 2014 or 2015. If a manufacturer opts-in, the program becomes mandatory. See Section I.B.5 for more information about NHTSA's voluntary opt-in program for MYs 2014 and 2015. Back to Citation
 74.
    
                         The NHTSA proposal provides voluntary standards for model years 2014 and 2015. Target line functions for 2016-2018 are for the second NHTSA alternative described in Section II.C(d)(ii). Back to Citation


[FR Doc. 2010-32726 Filed 12-28-10; 8:45 am] BILLING CODE 4910-59-P