Nevada Emissions Test
Decatur & Hacienda, Las Vegas
Many Clark County vehicles need an emissions test before registration can be renewed. The state-certified station at 5345 S Decatur Blvd runs qualifying vehicle emissions tests every day with no appointment and no long wait. Your test result is filed directly with the Nevada DMV when your vehicle passes, so you do not have to do anything extra to move forward with your registration.
- State-certified Nevada emissions testing
- Qualifying vehicles only. No diesel at this station.
- OBD II readiness checks and tailpipe testing
- Result filed with the Nevada DMV electronically on a pass
- Registration renewal can be done in the same visit
- No appointment needed. Walk in during business hours.
How the Nevada Emissions Test Works
Nevada requires emissions testing for many vehicles registered in Clark County. The test is designed to measure whether your vehicle’s engine and exhaust systems are operating within the environmental standards set by the state.
At this station, qualifying vehicles go through one or both of the standard test methods used in Nevada:
OBD II Scan
For model year 1996 and newer qualifying vehicles, the technician connects to your vehicle’s onboard diagnostic port. The system checks for stored trouble codes and confirms that your vehicle’s emission-related readiness monitors have run and are ready. If your check engine light is on, your OBD II monitors may not be set to ready, which could affect the result.
Tailpipe Test
Older vehicles that do not have an OBD II port go through a tailpipe measurement. The equipment reads the levels of hydrocarbons, carbon monoxide, and other emissions from your exhaust. Your vehicle needs to be at normal operating temperature for this test.
What Happens If Your Vehicle Does Not Pass
If your vehicle does not pass, you will receive the test result information so you know what needs attention next. This is a testing-only station, so smog diagnosis and repair are not available here.
Some Smog Busters locations can help with smog-related diagnosis and repair. Call (702) 436-5346 and we can direct you to the right location for your situation.
Nevada has a repair assistance program for qualifying low-income vehicle owners who have failed an emissions test. Ask the team or call ahead for details on how this works.
Vehicles Not Tested at This Station
- Diesel-powered vehicles
- Vehicles that are currently exempt from testing
- Vehicles that require a 2G-certified inspection
If you are not sure whether your vehicle can be tested here, call (702) 436-5346 before heading over.
Location and Hours
The station is at 5345 S Decatur Blvd, Las Vegas, NV 89118, next to Domino’s Pizza at the Decatur and Hacienda intersection. Convenient for drivers in the Spring Valley-adjacent area, Chinatown and Spring Mountain corridor, Spanish Trail, Rancho Viejo, Bella Vita, and the West Flamingo and West Tropicana corridors.
Monday through Friday: 8:00 AM to 6:00 PM
Saturday: 8:00 AM to 4:00 PM
Sunday: Closed
No appointment needed. Walk in any time during business hours. For full details on smog check discounts and all services at this location, see the Decatur & Hacienda location page.
Emissions Testing FAQ — Decatur & Hacienda
The test checks your vehicle’s on-board diagnostic system (OBD II) for stored fault codes and readiness monitors, and runs a tailpipe emissions measurement for applicable vehicles. The specific method depends on your vehicle’s model year and class.
Many Clark County vehicles registered in the Las Vegas metro area require a biennial emissions test as part of registration renewal. Newer vehicles and certain older vehicles may be exempt. Check your renewal notice or call (702) 436-5346 if you are not sure.
If your vehicle does not pass, you will receive the test result information so you know what needs attention next. This is a testing-only station. Some Smog Busters locations can help with smog-related diagnosis and repair. Call (702) 436-5346 for the right next step.
No. This is a 1G testing-only station for qualifying standard vehicles. Diesel vehicles are not tested here. Call (702) 436-5346 to find the right station for your vehicle type.
Need Your Emissions Test Done Near Decatur & Hacienda?
Walk in at 5345 S Decatur Blvd next to Domino’s Pizza. No appointment needed. State-certified emissions testing for qualifying vehicles. Open Monday through Saturday.
Open Mon-Fri 8am-6pm · Sat 8am-4pm · Walk-Ins Welcome · (702) 436-5346