SCAQMD

South Coast Air Quality Management District

SCR

selective catalytic reduction

SI

spark ignition

SIP

state implementation plan

SORE

small off-road engine

SULEV

super ultra-low-emission vehicle


TLEV

transitional low-emission vehicle


UAM

urban airshed model

UEGO

universal exhaust gas oxygen (sensor)

ULEV

ultra-low-emission vehicle


VOC

volatile organic compound


ZEV

zero-emission vehicle



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement