Diesel Emissions

Light-Duty Testing Top ↑

Diesel Tailpipe

Diesel-powered cars and trucks need an annual emissions test if they:

Please note that the manufacturer's weight rating is used to determine whether an emission inspection is required. The declared weight rating used to assess registration fees may be different. Both will be listed on your registration renewal notice, which will also indicate whether a smog check is required.

Emissions tests are valid for 90 days.

You must have a valid test to complete any original registration or renewal if the vehicle requires a test as listed above. This includes reinstatement of a suspended registration.

Nevada requires used car dealers to issue a valid emissions test, when required, on any vehicle they sell. In private transactions, the test is the buyer's responsibility.

Light duty diesel vehicles undergo testing on a dynamometer. The technician will also perform an opacity test and a visual inspection of the emissions components.

Waiver requirements for vehicles that fail to pass even after repairs are listed in the Diesel Emissions Requirements flier.

The DMV sets the maximum testing fees stations may charge based on an annual survey. Discounts are offered at each station's discretion. Stations which offer registration renewals are allowed to charge an additional $10 fee for this service.

Light-Duty Diesel Emission Inspection Stations Top ↑

Las Vegas Area Reno

Nate's Smog N' Go
5782 E. Charleston Blvd.
Las Vegas, NV 89142
(702) 438-4555

Sierra Diesel
2525 Mill St.
Reno, NV 89502
(775) 329-4232

Smart Smog
2965 E. Sahara Ave
Las Vegas, NV 89104
(702) 382-0001

Jones West Ford
3600 Kietzke Ln
Reno, NV 89502
(775) 329-8800

Carburetors Only
2755 N. Nellis Blvd
Las Vegas, NV 89115
(702) 643-3196

Nevada Auto Diagnostics
5425 Louie Lane
Reno, NV 89511
(775) 825-7664

AA Auto Care #500
2080 E. Craig Road
N. Las Vegas, NV 89030
(702) 776-6111

Pro 1 Automotive Inc.
945 Terminal Way
Reno, NV. 89502
(775) 856-4434

Smog Hut
2218 E. Cheyenne Ave.
North Las Vegas, NV 89030
(702) 399-3900

Full Time All-Wheel Drive and Traction Control

Diesel vehicles up to 14,000 pounds are required to undergo emissions testing.

This includes vehicles with Full Time All-Wheel Drive and Traction Control.

The following stations are capable of testing these vehicles subject to the size restrictions listed. An annual emissions test is required unless the vehicle is otherwise exempt.

Clark County

Smog Hut
184" wheelbase or less
2218 E. Cheyenne Ave.
North Las Vegas, NV 89030
(702) 399-3900

Washoe County

Nevada Auto Diagnostics
181" wheelbase or less
5425 Louie Lane
Reno, NV 89511
(775) 825-7664

Contact the stations for more information.

Other stations listed on this page are capable of testing only 2-wheel drive vehicles or 4-wheel drive vehicles running in 2-wheel mode.

Korner Kwik Lube
4850 Camino Al Norte
North Las Vegas, NV 89031
(702) 642-3306

Smog Hut
1950 N Decatur Blvd
Las Vegas, NV 89108

Jiffy Smog
1000 S. Jones
Las Vegas, NV 89107
(702) 259-9009

Smog Xpress
4295 W Tropicana Ave
Las Vegas, NV 89103
(702) 889-4400

IQ Smog Express
6100 W. Charleston Blvd A
Las Vegas, NV 89146
(702) 224-4595

Express Smog Inc
6527 W. Sahara Ave
Las Vegas, NV 89146

Jiffy Smog
1251 American Pacific Dr.
Henderson, NV 89074
(702) 558-2010

The Muffler Shop
38 Navy St
Henderson, NV 89015

Heavy-Duty Diesel Enforcement Top ↑

Helping Nevada Breathe Easier

HDD Enforcement VehicleNevada’s DMV Compliance Enforcement Division employs the Heavy Duty Diesel Enforcement Team of experienced, sworn peace officers that patrol our state in marked law enforcement vehicles. Team members possess full peace officer powers and conduct traffic stops to address observed violations of Nevada Revised Statutes and Nevada Administrative Codes.

The DMV’s Heavy Duty Diesel Enforcement Team also conducts periodic inspections at highway check-sites and weigh stations.

Team members have earned and maintain certifications to calibrate, maintain and employ mobile equipment in order to conduct field inspections as well as conduct courtesy inspections of Nevada-based fleets at the request of fleet owners.

Smoking Truck

Heavy Duty Diesel Standards

Nevada uses the Society of Automotive Engineers J1667 Snap Acceleration Test for exhaust opacity regulations.

While traveling in Nevada, the required air quality standards will be enforced statewide. Vehicles registered in other states are not exempt.

For heavy duty diesel related questions, please call (775) 684-3562.

Contacts Top ↑

Las Vegas Reno
DMV Emissions Lab
2621 E. Sahara Ave.
Las Vegas, NV 89104
(702) 486-4981
DMV Emissions Lab
305 Galletti Way
Reno, NV 89512
(775) 684-3580
Emissions calls only! For other DMV issues, see Contact Us.