Safety Inspections
Effective January 1, 2018, the State of Utah removed the safety inspection requirement for most vehicles as a prerequisite for registration. Vehicles that require a safety inspection are listed below.
- Salvage vehicles that have been rebuilt and are requesting a rebuilt title.
- First time street legal ATV registrations. This includes ownership transfers for previously registered street legal ATVs.
- Commercial vehicles are required to obtain a safety inspection for display and presenting to law enforcement, but it is not a prerequisite for registration.
- Motorhomes with three axles are considered a “Class 6” vehicle and require an annual safety inspection for display and presenting to law enforcement.
Emission Inspections
2022
Salt Lake County
Emissions Requirements
Vehicles registered in Salt Lake County with model years less than six years old are required to have an emission test once every two years. Vehicles in this category that have even-numbered model years must have an emission test in even-numbered years, and vehicles that have odd-numbered model years must have an emission test in odd-numbered years.
| Vehicle Model Year | Emission Inspection |
|---|---|
| 2022 | Not required |
| 2021 | Not required |
| 2020 | Required |
| 2019 | Not required |
| 2018 | Required |
| 2017 | Not required |
| 2016 to 1968 | Required |
| 1967 and older | Not required |
Exemptions
- New vehicles with an MSO
- Any vehicle with a model year 1967 & older
- Any diesel vehicle with a model year 1997 & older and with a GVWR less than 14,000 lbs.
- All implements of husbandry
- Off highway vehicles
- Electric vehicles
- Motorcycles or motor driven cycles
- Farm vehicles
- Vintage or custom vehicles
- Maintenance or construction vehicles not designed or licensed to operate on a highway
2022
Davis County
Emissions Requirements
Vehicles registered in Davis County with model years less than six years old are required to have an emission test once every two years. Vehicles in this category that have even-numbered model years must have an emission test in even-numbered years, and vehicles that have odd-numbered model years must have an emission test in odd-numbered years. Light, Medium and Heavy duty diesel powered vehicles in Davis County are required to follow these same requirements.
| Vehicle Model Year | Emission Inspection |
|---|---|
| 2022 | Not required |
| 2021 | Not required |
| 2020 | Required |
| 2019 | Not required |
| 2018 | Required |
| 2017 | Not required |
| 2016 to 1968 | Required |
| 1967 and older | Not required |
Exemptions
- New vehicles with an MSO
- Any non-diesel powered vehicle with a model year 1967 & older
- Implement of husbandry (Farm) vehicles
- Any vehicle used for maintenance or construction and not designed or licensed to operate on the highway
- Any motorcycle or motor driven cycle
- Off highway vehicles
- Electric vehicles
- Any vintage or custom vehicles
- Heavy duty diesel vehicles that meet all of the following criteria:
- Have an apportioned registration;
- Are 26,000 lbs. GVWR or greater;
- Have logged more than 50% of their miles outside of the state; and
- Are within the first three (3) model years.
2022
Utah County
Emissions Requirements
Vehicles registered in Utah County with model years less than six years old are required to have an emission test once every two years. Vehicles in this category that have even-numbered model years must have an emission test in even-numbered years, and vehicles that have odd-numbered model years must have an emission test in odd-numbered years. Diesel powered vehicles with model years 1998 - 2017 require an emissions inspection in Utah County.
| Vehicle Model Year | Emission Inspection |
|---|---|
| 2022 | Not required |
| 2021 | Not required |
| 2020 | Required |
| 2019 | Not required |
| 2018 | Required |
| 2017 | Not required |
| 2016 to 1968 | Required |
| 1967 and older | Not required |
| Diesel Emission Tests | |
| 1998 to 2017 | Required |
Exemptions
- New vehicles with an MSO
- Any vehicle with a model year 1967 & older
- Implement of husbandry (Farm) vehicles
- Any vehicle used for maintenance or construction and not designed or licensed to operate on the highway
- Any motorcycle or motor driven cycle
- Electric vehicles
- Diesel powered vehicles with a model year 1997 & older
- Any vintage or custom vehicle
- Off highway vehicles
- Any diesel vehicle with a GVWR greater than 14,000 lbs.
- Diesel vehicles 2018 and newer
2022
Weber County
Emissions Requirements
Vehicles registered in Weber County with model years less than six years old are required to have an emission test once every two years. Vehicles in this category that have even-numbered model years must have an emission test in even-numbered years, and vehicles that have odd-numbered model years must have an emission test in odd-numbered years.
| Vehicle Model Year | Emission Inspection |
|---|---|
| 2022 | Not required |
| 2021 | Not required |
| 2020 | Required |
| 2019 | Not required |
| 2018 | Required |
| 2017 | Not required |
| 2016 to 1968 | Required |
| 1967 and older | Not required |
Exemptions
- New vehicles with an MSO
- Any vehicle with a model year 1967 & Older
- Implement of husbandry (Farm) vehicles
- Any vehicle used for maintenance or construction and not designed or licensed to operate on the highway
- Any motorcycle or motor driven cycle
- Electric vehicles
- Any diesel vehicle 1997 & older or with a GVW greater than 14,000 lbs.
- Off highway vehicles
- Vintage or custom vehicles
2022
Cache County
Emissions Requirements
Vehicles registered in Cache County with model years less than six years old are not required to have an emission test. Vehicles six years old and greater that have even- numbered model years must have an emission test in even-numbered years, and vehicles that have odd-numbered model years must have an emission test in odd-numbered years.
| Vehicle Model Year | Emission Inspection |
|---|---|
| 2022 to 2017 | Not required |
| 2016 to 1969 | Biennial |
| 1968 and older | Not required |
Exemptions
- New vehicles with an MSO
- Any vehicle with a model year 1968 & Older
- Implement of husbandry (Farm) vehicles
- Any vehicle used for maintenance or construction and not designed or licensed to operate on the highway
- Any motorcycle or motor driven cycle
- Electric vehicles
- Any vintage or custom vehicle
- Off highway vehicles
- Any vehicle less than six years old
- Any diesel vehicle 1997 & older or with a GVWR greater than 14,000 lbs.
- Any gasoline (and non-diesel based alternative fuel) vehicles 1996 to 2007 model years with a GVWR greater than 8,500 lbs
When to Obtain an Inspection
An emission inspection may be made no more than two months prior to the renewal of the registration. The emission certificate must be submitted to the appropriate Motor Vehicle office as a condition of registration.
Fees for Inspections
Fees that may be charged by approved inspection stations for the emission inspection are not to exceed:
| Emission Inspection Fees* Paid to Station | |
|---|---|
| County | Maximum Inspection Fee* |
| Cache | $20 |
| Davis | No limit is set as the fees are self regulated |
| Salt Lake | No limit is set as the fees are self regulated, however the average fee is $25 |
| Utah | No limit is set as the fees are self regulated, however the average fee is $25 |
| Weber | $30 |
Exempt from this requirement are:
- New vehicles,
- Motorcycles, and
- Vehicles with a model year of 1967 and older.
In addition to the inspection fee paid to the station, the following counties impose fees for emission programs. Payment of fees is required at the time of registration. Fees are due regardless if a certificate is required or not. The fees are as follows:
| Emission Program Fees Paid to County | |
|---|---|
| County | All including diesel |
| Cache | $3 |
| Davis | $3 |
| Salt Lake | $3 |
| Utah | $2 |
| Weber | $1 |
Additional Information
For more information about emissions test requirements contact the appropriate County Health Department below:
| Cache County | 435-792-6579 | brhd.org |
| Davis County | 801-525-5100 | www.co.davis.ut.us |
| Salt Lake County | 385-468-3837 | slco.org |
| Utah County | 801-851-7600 | health.utahcounty.gov |
| Weber County | 801-399-7140 | webermorganhealth.org |
Utah Residents Living Out-of-State
If you are a Utah resident and temporarily residing outside of Utah, your vehicle may be required to receive an emission inspection. This will be a result of the vehicle year, your Utah resident county and your current out-of-state location. If your vehicle is required to receive an emission inspection you may be eligible for a deferment from your Utah resident county. If required, the emission inspection or county deferral must be transmitted from the county to DMV prior to a registration being completed.
County websites with requirements and forms for submission of inspection or application for deferral for your resident county are listed below.
- Cache County: brhd.org/forms/out-of-state-deferral-form/
- Davis County: daviscountyutah.gov/health/environmental-health-services/vehicle_emissions/out-of-state-emissions-deferrals
- Salt Lake County: slco.org/health/air-quality/vehicle-emissions/oos-deferrals
- Utah County: Contact the Air Quality Bureau at 801-851-7600
- Weber County: webermorganhealth.org/environmental-health-services/air-quality/out-of-state-deferral-program/
After receiving confirmation of emission approval from your county of residence, complete your renewal online or submit to DMV.
See Renew Your Registration for more information.
Renew your vehicle online here.
Vehicles Sold by Dealers in Non-Emission Counties to Emission-County Residents
Utah law requires all licensed Utah dealers to assure vehicles they sell to residents of Cache, Davis, Salt Lake, Utah, or Weber counties meet emission testing requirements prior to issuing a temporary permit. However, because emission testing facilities are often not available in counties where emission testing is not required, the air quality administrators from the five emission-required counties have granted a limited emission test exemption.
If a vehicle is sold to a resident of Cache, Davis, Salt Lake, Utah, or Weber counties by a licensed Utah dealer whose place of business is located in a non-emission county, the dealer must:
- Issue a temporary permit,
- Provide the customer with a copy of Form TC-820, Exemption Affidavit for Utah Emission Testing.
The purchaser must:
- Obtain an emission test certificate of compliance within 10 days of return to county of residence;
- Provide a copy of Form TC-820, Exemption Affidavit for Utah Emission Testing to the local motor vehicle office with the application for plate, title and registration, and,
- Send certificate of compliance and a copy of the TC-820 to the local Department of Health.
Vehicle/Hull Identification Number (VIN/HIN) Inspections
Trailers, boats, off-highway vehicles, and snowmobiles require separate VIN or HIN inspections, which can be completed using a Form TC-661, Certificate of Inspection completed by a DMV employee, designated contractor, designated contractor, Utah peace officer or designated enforcement agency employee, licensed dealer, or a certified safety inspector. Note that this may be completed by a DMV employee at no extra charge.