Vehicles
are
exempt
from an
emission test
if
they
are:
Locations
SMOG
SPOTTER!
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DRIVING
NEVADA
n emission inspection
is
required t
used motor-vehicle registrations
and
for each
annual
renewal.
Emission
tests
are
valid
for
90
days
or
,
with
a Dealer Report
of
Sale,
180
days.
Vou will receiv a r gistration-ren
wal
notice indicating whether an emission
test
is
required
or
not.
Vehicles require an emission
test if they are:
• Based in urban areas of Washoe or Clark
County;
• Gasoline powered;
• Diesel powered with a manufactures gross
weight up to and including 14,000 lbs.;
• 1968 model year or newer;
• New vehicles on their fourth registration
cycle;
• Hybrids on their sixth model year.
• New motor vehicles being registered for
the first, second or third registration cycle;
• Hybrid-electric vehicles 5 model years or
newer;
• 1967 or older;
• Motorcycles, mopeds, and most tri-
mobiles;
• Vehicles based in some remote areas of
Clark and Washoe County and all other
Nevada counties;
• Diesel powered vehicles with a
manufacture’s gross vehicle weight rating
over 14,000 lbs.;
• Strictly propane, CNG, electric powered
vehicles;
• Vehicles registered as Classic Rod,
Classic Vehicle, or Old Timer that are
driven 5,000 miles or less per year;
• Vehicles certified by the Department as a
Replica Vehicle.
All Department Licensed Emission Stations
can be found on our website at dmv.nv.gov.
1-G Stations are authorized to perform
emission tests but are prohibited from
performing emission-related repairs.
2-G Stations are authorized to perform
emission tests and complete emission-related
repairs.
Diesel Stations are authorized to perform
emission tests on Diesel vehicles.
DMV Emission Labs
LAS VEGAS:
RENO:
DMV Emission Lab DMV Emission Lab
2621 E. Sahara Ave. 9155 Double Diamond Pkwy
Las Vegas, NV 89104 Reno, NV 89521
For more information, visit the DMV
website at DMV.NV.gov or contact the
DMV Emission Lab at:
Las Vegas: (702) 486-4981
Reno: (775) 684-3580
The Nevada DMV also operates the Smog
Spotter program to encourage the public to
report smoking vehicles online or by
telephone!
SmogSpotter.com
Statewide: 844-END-SMOG
Las Vegas: (702) 642-SMOG
Reno: (775) 686-SMOG
Emission Control
Program
NRS 445B and NAC 445B
EC-002 (03/2022)
An emission inspection is required for
used motor-vehicle registrations and
for each annual renewal.
Emission tests are valid for 90 days or,
with a Dealer Report of Sale, 180 days.
You will receive a registration-renewal
notice indicating whether an emission
test is required or not.
of
Tests
for
Casoline
Vehicles
Light
Duty
Diesel
Tests
Waiver Requirements
for
Clarb County
Rejected Tests
You Passed!
The test results are transmitted to the DMV
Nevada uses On-Board Diagnostics (OBDII) testing
for 1996 and newer light duty gasoline powered
vehicles. The emission inspector will connect an
analyzer to the OBD computer in your vehicle. Data
sent from your vehicle’s OBDII computer to the
emission analyzer will indicate if the emission control
systems are operating properly and within prescribed
limits.
Light duty gasoline powered vehicles older than 1996
and all 1968 and later model heavy-duty gasoline
powered vehicles are tested with a two-speed idle
test. The emission inspector will test your vehicle at
approximately 2,500 rpm and at idle.
Visual Inspections
Certain emission control devices on light duty
gasoline powered vehicles older than 1996 and all
1968 and later model heavy-duty gasoline powered
vehicles receive a visual inspection for tampering.
The emission devices inspected (if required by the
manufacturer) are:
• Gas Cap
• Air injection system
• Exhaust gas recirculation system
• Catalytic converter
• Fuel inlet restrictor
Every gasoline-powered vehicle that receives an
emission test is visually inspected for exhaust smoke
and crankcase blow-by.
Light duty diesel vehicles undergo testing on a
dynamometer. The technician will perform an opacity
test and a visual inspection of the emission
components.
A list of emission stations that test light duty diesel
vehicles can be found on our website.
Note: Not all diesel stations within the State of
Nevada are equipped to test four-wheel drive and
traction control vehicles.
For assistance with finding the appropriate light duty
diesel emission testing station, please contact the
Department of Motor Vehicles Emission Control Lab.
A rejected emission test is not a failed emission test
and may not need repairs. A rejected test is not
eligible for a waiver. On 1996 and newer light duty
vehicles, a rejected test usually indicates the vehicle
has not run all monitors (self-tests) and requires
additional driving before it is ready for testing. Heavy
Duty and Pre 1996 Light Duty vehicles are “rejected”
from emission tests if the engine speed (RPM) can’t
be maintained within the analyzers allowable range
during testing. If your vehicle has been rejected due
to an RPM issue, bring the vehicle and the “rejected”
Vehicle Inspection Report to the DMV Emission
Control Lab in your area for a challenge test.
Test Failures
If your vehicle has failed the initial emission test, you
must repair it and pass a second test.
If you fail after repairs…
If the vehicle still fails after being repaired, it may be
eligible for a waiver. Your vehicle must fail:
• Carbon monoxide and/or hydrocarbon levels
exceeding standards for 1968-1995 light duty
vehicles and all heavy-duty vehicles; or
• Illuminated “Check Engine” light for 1996 and
newer light duty vehicles.
Waivers will not be issued to:
• Vehicles with a rejected test
• Vehicles eligible for warranty coverage
• Smoking Vehicles – The vehicle must be
repaired regardless of cost.
• Emission Device Tampering - The vehicles
must be repaired regardless of cost.
• Vehicles with an inoperative Check Engine light
If you failed the initial test, did the repairs pursuant to
your county’s requirements, met the financial limit to
obtain a waiver, and your vehicle still fails for
hydrocarbons/carbon monoxide or the Check Engine
light is illuminated, bring your vehicle, both failed
certificates, and receipts for all repair work to the
Department of Motor Vehicles Emission Lab to
request a waiver.
immediately and you will receive a Vehicle Inspection
Report from the inspection station. You may renew
your vehicle registration at a kiosk, by mail or in
person at a DMV office. You may also renew your
registration at any participating registration
inspection station or on our website. You can find a
list of participating registration inspection stations on
our website at dmv.nv.gov.
The vehicle must be repaired by an Authorized 2G
Station to be eligible for a waiver. The waiver
application must include receipts from the station
showing that at least $450 has been spent on parts
and labor other than a catalytic converter, fuel inlet
restrictor, air injection system, data link connector, or
an inoperative Check Engine light. Repairs
evidenced by the receipt must be directly related to
the deficiency in emissions. Emission test fees are
excluded from the waiver expenditures. If the vehicle
is not repaired at an authorized 2G station, it will not
be eligible for a waiver, regardless of the cost
incurred. Vehicles failing for visible smoke are not
eligible for a waiver.
Waiver repairs must be made by an Authorized 2G
Station or by the owner (self-repair). Vehicles
repaired by an un-authorized shop are not eligible for
a waiver. The waiver application must include
receipts from the station showing at least $200 has
been spent on parts and labor, or only parts that were
purchased within 14 days after the initial emission
test if repaired by the owner. The repairs must be
directly related to the deficiency in emissions other
than a catalytic converter, fuel inlet restrictor, air
injection system, data link connector, or an
inoperative Check Engine light. Emission test fees
are excluded from the waiver expenditures. Vehicles
failing for visible smoke are not eligible for a waiver.
For diesel vehicle waiver requirements, please visit our website.