An independent local resource

COLORADO / INDEPENDENT LOCAL STATION GUIDE

Longmont, CO Emissions Testing

Longmont has an Air Care gasoline facility on Rogers Road and licensed diesel options on Bowen Circle and the I-25 frontage road. Keep the official business name with the address when choosing navigation.

Illustrative Colorado road beneath an open sky
AI-generated Colorado road illustration · not a Longmont station or verified local road

WITHIN THE LISTED LONGMONT LOCALITY

Choose the right testing program.

1 gasoline / hybrid station · 2 licensed diesel businesses

Locations below use the official source locality, which can differ from municipal boundaries. A listing here does not establish that your vehicle needs a test. Start with your renewal notice and the official DMV requirements.

Gasoline options · Diesel options · Plan your trip · Nearby alternatives

Gasoline & hybrid testing in Longmont

Air Care Colorado does not test diesel vehicles. Review equipment restrictions and source freshness before setting out.

Licensed diesel testing in Longmont

Duty capability is sourced from the Colorado DMV. Hours, appointments, current availability and unverified vehicle restrictions should be checked by phone. Air Care queue estimates do not apply.

Al’s Front Range Diesel: Light duty listed · Heavy duty listed. Contact station: 303-776-6469

JG's Diesel Emissions Testing: Light duty listed · Heavy duty listed · AWD explicitly listed. Contact station: 720-487-8997

LOCAL CONTEXT / REVIEWED 2026-11-06

Plan an emissions testing trip in Longmont.

Al’s Front Range Diesel and JG’s Diesel Emissions Testing are both listed in the DMV’s light- and heavy-duty section. JG’s also has an explicit AWD statement; this capability is not inferred for another business.

A source status of Station Open at the Air Care location is an operational status, not a zero-minute queue. Use the timestamp and published wording shown below, and call diesel businesses about their own availability.

The cards distinguish the operator’s reported wait from ordinary hours and show the available source timestamp. An unavailable diesel wait is not zero, and a gasoline “Station Open” message is not a measured queue. Check directly before a near-closing trip; inspection time is additional to driving and waiting.

Each station page includes its source, verification date, phone and known vehicle capability. Google Maps and Apple Maps links use the public destination address. The finder can compare driving estimates after you choose a starting point; a city name alone is not your exact origin. Compare options around Longmont.

Nearby alternatives outside Longmont

These are outside the listed Longmont locality. Distances are approximate straight-line measurements from the nearest listed Longmont station with a sourced position, not from your home or a city-center boundary. Census address-range positions are approximate; distances are not driving miles or drive times.

Sources and verification

Station facts come from Air Care Colorado’s location listing and the Colorado DMV licensed diesel directory. Equipment guidance comes from Air Care’s restrictions. This independent guide does not own the stations or determine eligibility.