environmental
abbreviation
acronym
agency
area
business
combination
concept
curve
cycle
definition
driving
emission
engine
epa
exceed
experience
hand
heavyduty
involve
limit
load
marker
minimum
not
nte
operation
phrase
pollutant
procedure
promulgate
protection
range
regulate
specific
specified
speed
standard
steadystate
term
text
time
torque
truck
united states
use
value
word