Safety Inspection
Beginning January 1, 2018, ALL commercial vehicles regardless of weight require an annual safety inspection. The safety inspection is not a prerequisite for registration. However, the certificates must be kept in the vehicle at all times.
Emissions Inspection
2024
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 |
|---|---|
| 2024 | Not required |
| 2023 | Not required |
| 2022 | Required |
| 2021 | Not required |
| 2020 | Required |
| 2019 | Not required |
| 2018 to 1968 | Required |
| 1967 and older | Not required |
Exemptions
- New vehicles with an MSO
- Any vehicle w/ model year 1967 & older
- Any diesel vehicle w/ model year 2013 and older with a GVWR 14,001 and greater
- Any diesel vehicle w/ model year 1997 & older 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 Vehicles model year 1982 & older or custom vehicles
- Maintenance or construction vehicles not designed or licensed to operate on a highway
Note: A vintage vehicle that has a model year of 1983 or newer is required to provide proof of an emissions inspection or provide proof of vehicle insurance that is a type specific to a collector vehicle. See form TC-745, Vintage Vehicle Insurance Affidavit for more information.
Salt Lake County Residents Temporarily Out-of-State
If you are a Salt Lake County resident temporarily residing outside of Utah and your vehicle is required to receive an emission inspection, you may be eligible for a deferment from Salt Lake County. The emission inspection or county deferral must be transmitted from Salt Lake County to the DMV prior to a registration being completed.
Please visit the Salt Lake County website to review requirements and obtain forms for submission of inspection and application for deferral at this link.
2024
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.
| Vehicle Model Year | Emission Inspection |
|---|---|
| 2024 | Not required |
| 2023 | Not required |
| 2022 | Required |
| 2021 | Not required |
| 2020 | Required |
| 2019 | Not required |
| 2018 to 1968 | Required |
| 1967 and older | Not required |
Exemptions
- New Vehicles with an MSO
- Any vehicle model year 1967 and older
- 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
- Vintage vehicles
- Implements of Husbandry Vehicles
- Any diesel vehicle 1997 and older
- Any diesel vehicle with a GVWR greater than 14,001 lbs
Note: A vintage vehicle that has a model year of 1983 or newer is required to provide proof of an emissions inspection or provide proof of vehicle insurance that is a type specific to a collector vehicle. See form TC-745, Vintage Vehicle Insurance Affidavit for more information.
Davis County Residents Temporarily Out-of-State
If you are a Davis County resident temporarily residing outside of Utah and your vehicle is required to receive an emission inspection, you may be eligible for a deferment from Davis County. The emission inspection or county deferral must be transmitted from Davis County to the DMV prior to a registration being completed.
Please visit the Davis County website to review requirements and obtain forms for submission of inspection and application for deferral at this link.
2024
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 – 2019 require an emissions inspection in Utah County.
| Vehicle Model Year | Emission Inspection |
|---|---|
| 2024 | Not required |
| 2023 | Not required |
| 2022 | Required |
| 2021 | Not required |
| 2020 | Required |
| 2019 | Not required |
| 2018 to 1968 | Required |
| 1967 and older | Not required |
| Diesel Emission Tests | |
| 1998 to 2019 | 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
- Off highway vehicles
- Any diesel vehicle with a GVWR greater than 14,000 lbs.
- Diesel vehicles 2020 and newer
- Vintage vehicles model year 1982 & older or custom vehicles
Note: A vintage vehicle that has a model year of 1983 or newer is required to provide proof of an emissions inspection or provide proof of vehicle insurance that is a type specific to a collector vehicle. See form TC-745, Vintage Vehicle Insurance Affidavit for more information.
Utah County Residents Temporarily Out-of-State
If you are a Utah County resident temporarily residing outside of Utah and your vehicle is required to receive an emission inspection, you may be eligible for a deferment from Utah County. The emission inspection or county deferral must be transmitted from Utah County to the DMV prior to a registration being completed.
Please visit the Utah County website to review requirements and obtain forms for submission of inspection and application for deferral at this link or contact cleanair@utahcounty.gov.
2024
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 |
|---|---|
| 2024 | Not required |
| 2023 | Not required |
| 2022 | Required |
| 2021 | Not required |
| 2020 | Required |
| 2019 | Not required |
| 2018 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 vehicles model year 1982 & older or custom vehicles
Note: A vintage vehicle that has a model year of 1983 or newer is required to provide proof of an emissions inspection or provide proof of vehicle insurance that is a type specific to a collector vehicle. See form TC-745, Vintage Vehicle Insurance Affidavit for more information.
Weber County Residents Temporarily Out-of-State
If you are a Weber County resident temporarily residing outside of Utah and your vehicle is required to receive an emission inspection, you may be eligible for a deferment from Weber County. The emission inspection or county deferral must be transmitted from Weber County to the DMV prior to a registration being completed.
Please visit the Weber County website to review requirements and obtain forms for submission of inspection and application for deferral at this link
2024
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 |
|---|---|
| 2024 to 2019 | Not required |
| 2018 to 1996 | Biennial |
| 1995 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
- 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) vehicle with a model year of 2007 and older with a GVWR greater than 8,500 lbs
- Vintage vehicles model year 1982 & older or custom vehicles
Note: A vintage vehicle that has a model year of 1983 or newer is required to provide proof of an emissions inspection or provide proof of vehicle insurance that is a type specific to a collector vehicle. See form TC-745, Vintage Vehicle Insurance Affidavit for more information.
Cache County Residents Temporarily Out-of-State
If you are a Cache County resident temporarily residing outside of Utah and your vehicle is required to receive an emission inspection, you may be eligible for a deferment from Cache County. The emission inspection or county deferral must be transmitted from Cache County to the DMV prior to a registration being completed.
Please visit the Cache County website to review requirements and obtain forms for submission of inspection and application for deferral at this link