Skip to Content


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

Document Details

Information about this document as published in the Federal Register.

Published Document

This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.

Start Preamble


Start Amendment Part

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

End Amendment Part
Symbols, abbreviations, and acronyms. [Corrected]
Start Amendment Part

1. On page 74044, in paragraph (b), the table should read as follows:

End Amendment Part
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.
Start Printed Page 29762
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]
Start Amendment Part

2. On page 74097, in the third column, TABLE 1 OF § 1037.550—STATISTICAL CRITERIA FOR VALIDATING DUTY CYCLES should read as follows:

End Amendment Part

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.
End Preamble

[FR Doc. C1-2016-21203 Filed 6-29-17; 8:45 am]