# Maryland — Vehicle emissions testing: which counties require it, in which states

For Maryland, counties where testing is required is Anne Arundel, Baltimore City, Baltimore, Calvert, Carroll, Cecil, Charles, Frederick, Harford, Howard, Montgomery, Prince George's, Queen Anne's, and Washington; program / authority is VEIP, verified against its source on 2026-08-19.

- **State:** Maryland _(our reading, not quoted from the source)_
- **Counties where testing is required:** Anne Arundel, Baltimore City, Baltimore, Calvert, Carroll, Cecil, Charles, Frederick, Harford, Howard, Montgomery, Prince George's, Queen Anne's, and Washington _(verified: appears in the quote below)_
- **Program / authority:** VEIP _(verified: appears in the quote below)_
- **How often:** every two years _(per mva.maryland.gov, not stated by the source above)_
- **Vehicles covered / exempt:** New vehicles (2019 or newer, original owner, titled in Maryland and not previously titled in any other jurisdiction): First test will occur 6 years after titling and registration in Maryland, then every 2 years after that _(per mva.maryland.gov, not stated by the source above)_

## What the source says

> Vehicles registered in the following counties are required to get VEIP inspections: Anne Arundel, Baltimore City, Baltimore, Calvert, Carroll, Cecil, Charles, Frederick, Harford, Howard, Montgomery, Prince George's, Queen Anne's, and Washington.

## What mva.maryland.gov says

> Your vehicle must complete an emissions inspection every two years. Your testing schedule depends on your vehicle: Used vehicles: Test every 2 years New vehicles (2019 or newer, original owner, titled in Maryland and not previously titled in any other jurisdiction): First test will occur 6 years after titling and registration in Maryland, then every 2 years after that

Source: https://mva.maryland.gov/vehicles/Pages/VEIP.aspx

## Source

- https://mva.maryland.gov/vehicles/Pages/VEIP.aspx

Last verified: 2026-08-19. Review by: 2027-08-19.
Part of [Vehicle emissions testing: which counties require it, in which states](https://referencesource.org/vehicle-emissions-testing-by-state/).