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Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles-Phase 2

This document is a correction of an document that was published on 10/25/2016. View Uncorrected Document

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In rule document 2016-21203, appearing on pages 73478-74274, in the issue of Tuesday, October 25, 2016, make the following corrections:

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Symbols, abbreviations, and acronyms. [Corrected]
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1. On page 74044, in paragraph (b), the table should read as follows:

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SymbolQuantityUnitUnit symbolUnit in terms of SI base units
aatomic hydrogen-to-carbon ratiomole per molemol/mol1.
batomic oxygen-to-carbon ratiomole per molemol/mol1.
C d Adrag areameter squaredm2m2.
C rrcoefficient of rolling resistancekilogram per metric tonkg/tonne103.
Ddistancemiles or metersmi or mm.
emass weighted emission resultgrams/ton-mileg/ton-mig/kg-km.
E mmass-specific net energy contentmegajoules/kilogramMJ/kgm2·s2.
f nangular speed (shaft)revolutions per minuter/minπ·30·s1.
iindexing variable.
k adrive axle ratio.
k topgearhighest available transmission gear.
mmasspound mass or kilogramlbm or kgkg.
Mmolar massgram per moleg/mol103·kg·mol1.
Mvehicle masskilogramkgkg.
M rotatinginertial mass of rotating componentskilogramkgkg.
Ntotal number in a series.
Ttorque (moment of force)newton meterN·mm2·kg·s2.
Δttime interval, period, 1/frequencysecondss.
UFutility factor.
vspeedmiles per hour or meters per secondmi/hr or m/sm·s1.
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w Ccarbon mass fractiongram/gramg/g1.
w CH4N2Ourea mass fractiongram/gramg/g1.
xamount of substance mole fractionmole per molemol/mol1.
x bbrake energy fraction.
x blbrake energy limit.
Powertrain testing. [Corrected]
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2. On page 74097, in the third column, TABLE 1 OF § 1037.550—STATISTICAL CRITERIA FOR VALIDATING DUTY CYCLES should read as follows:

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Table 1 of § 1037.550—Statistical Criteria for Validating Duty Cycles

Parameter 1Speed control
Slope, a 10.990 ≤ a 1 ≤ 1.010.
Absolute value of intercept, |a 0|≤2.0% of maximum test speed.
Standard error of estimate, SEE≤2.0% of maximum test speed.
Coefficient of determination, r2≥0.990.
1 Determine values for specified parameters as described in 40 CFR 1065.514(e) by comparing measured and reference values for f nref,dyno.
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[FR Doc. C1-2016-21203 Filed 6-29-17; 8:45 am]