1033.905—Symbols, acronyms, and abbreviations.

The following symbols, acronyms, and abbreviations apply to this part:
ABTaveraging, banking, and trading.
AECDauxiliary emission control device.
AESSautomatic engine stop/start
AFadjustment factor (see§ 1033.530).
CFRCode of Federal Regulations.
CH4methane.
COcarbon monoxide.
CO2carbon dioxide.
EPAEnvironmental Protection Agency.
FELFamily Emission Limit.
g/bhp-hrgrams per brake horsepower-hour.
HChydrocarbon.
hphorsepower.
LPGliquefied petroleum gas.
LSDlow sulfur diesel.
MWmegawatt.
N2Onitrous oxide.
NISTNational Institute of Standards and Technology.
NMHCnonmethane hydrocarbons.
NOXoxides of nitrogen.
PMparticulate matter.
rpmrevolutions per minute.
SAESociety of Automotive Engineers.
SCRselective catalytic reduction.
SEASelective Enforcement Audit.
THCtotal hydrocarbon.
THCEtotal hydrocarbon equivalent.
ULuseful life.
ULSDultra low sulfur diesel.
U.S.United States.
U.S.C.United States Code.

Code of Federal Regulations

[73 FR 37197, June 30, 2008, as amended at 74 FR 56508, Oct. 30, 2008; 75 FR 22987, Apr. 30, 2010]