Emissions Inspection in Mississippi: Requirements, Cost & Exemptions
Whether you're buying, selling, or renewing registration in Mississippi, here's exactly what the emissions inspection program requires and what it costs.
Quick Reference
Is It Required?
Varies — check with state DMV
Emissions testing requirements vary widely by state. Some require statewide, some by county, some not at all.
Counties Affected
Varies by state
Many states only require testing in metropolitan or air-quality non-attainment areas.
Test Types
- OBD-II for 1996+ vehicles is the standard
- Visual inspection of emissions equipment
Cost & What to Expect
Typical cost: $10–$80 depending on state and test type
Some states fund testing publicly (free); most charge $15–$50 per test.
Exemptions
- Vehicles older than 25 years (classic)
- Vehicles in their first 1–2 model years
- Electric vehicles
- Motorcycles in some states
If Your Vehicle Fails
Some states offer income-based repair assistance
Check your state environmental agency for any low-income repair assistance programs.
Mississippi Standout Rule
Frequently Asked Questions
Is emissions inspection required in Mississippi?
Varies — check with state DMV. Emissions testing requirements vary widely by state. Some require statewide, some by county, some not at all.
How often do I need an emissions test in Mississippi?
Most testing states require annual or biennial inspection. Test schedule is usually tied to registration renewal cycles.
How much does an emissions inspection cost in Mississippi?
$10–$80 depending on state and test type. Some states fund testing publicly (free); most charge $15–$50 per test.
Who is exempt from emissions testing in Mississippi?
Exempt categories include: Vehicles older than 25 years (classic), Vehicles in their first 1–2 model years, Electric vehicles, and others. See full list on the official agency site.
What happens if my vehicle fails emissions in Mississippi?
Some states offer income-based repair assistance. Check your state environmental agency for any low-income repair assistance programs.
Selling After Passing Inspection?
A compliant Mississippi bill of sale lets you transfer ownership cleanly after your vehicle passes its inspection.
Generate Bill of SaleSource: State Environmental Protection Agency or DMV. Emissions rules change periodically — verify current requirements before scheduling a test.