---
title: "Coops Carb Compliance LLC — Clean Truck Check, Paso Robles, CA"
description: "Coops Carb Compliance LLC in Paso Robles, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/coops-carb-compliance-llc-paso-robles/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Coops Carb Compliance LLC

Clean Truck Check tester in Paso Robles, CA (San Luis Obispo County).

> CTC Finder is an independent directory, not affiliated with CARB. Tester data: CARB Clean Truck Check public tester list, last checked November 1, 2026. Confirm services, hours and prices with the tester.

| Field | Value |
|---|---|
| Location | 6520 Long Hill Pl, Paso Robles, CA 93446 |
| County | San Luis Obispo County |
| Phone | (620) 778-2208 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Coops Carb Compliance LLC can test

| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Yes |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Yes |
| Diesel, model year 2012 or older (no OBD) | Smoke opacity test (SAE J1667) plus visual inspection | Not listed |
| California-registered motorhome | Same test as above by engine year, once a year | Not listed |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Dye's Mobile Diesel Smoke Testing in Paso Robles, about 1 mile away. [See listing](https://ctcfinder.com/tester/dyes-mobile-diesel-smoke-testing-paso-robles/).

## Clean Truck Check testers in San Luis Obispo County

Coops Carb Compliance LLC is one of 25 testing businesses in San Luis Obispo County on CARB's public tester list. 22 of them offer mobile testing and 9 do smoke opacity tests. In Paso Robles itself there are 5 listed businesses, 5 of them mobile.

## When your truck is due

Most trucks test twice a year, on a schedule tied to the DMV registration expiration date. CARB says OBD trucks move to four tests a year beginning October 2027. California-registered (non-commercial) motorhomes and agricultural vehicles test once a year. See the [deadline guide](https://ctcfinder.com/guide/deadlines-2026-2027/). You can test up to 90 days before a deadline. Free email reminders: https://ctcfinder.com/reminders/

## Frequently asked questions

### Does Coops Carb Compliance LLC offer mobile Clean Truck Check testing?

Yes. Coops Carb Compliance LLC says on CARB's tester list that it offers mobile testing, so it can come to your yard or job site. Ask about a trip fee when you call.

### Can Coops Carb Compliance LLC test a 2012 or older diesel truck?

Coops Carb Compliance LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Dye's Mobile Diesel Smoke Testing](https://ctcfinder.com/tester/dyes-mobile-diesel-smoke-testing-paso-robles/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Coops Carb Compliance LLC charge for a Clean Truck Check?

Coops Carb Compliance LLC has not published prices with us; call (620) 778-2208 for a quote. Published California prices are usually $50–$135 per vehicle for an OBD test and $190–$200 for a smoke opacity test, plus CARB's annual fee ($32.13 in 2026). See the [cost guide](https://ctcfinder.com/guide/cost/).

### Is Coops Carb Compliance LLC a CARB-credentialed tester?

Coops Carb Compliance LLC appears on CARB's public Clean Truck Check tester list, last checked November 1, 2026. Only credentialed testers can submit results to CARB; after the test, confirm the passing result shows for your vehicle in CTC-VIS.

## Other testers nearby

- **[D's Diesel N' Off- Road](https://ctcfinder.com/tester/ds-diesel-n-off-road-paso-robles/)** — 6085 Eucalyptus Rd, Paso Robles, CA 93446 — (805) 286-8116 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Dye's Mobile Diesel Smoke Testing](https://ctcfinder.com/tester/dyes-mobile-diesel-smoke-testing-paso-robles/)** — 655 Cripple Creek Rd, Paso Robles, CA 93446 — (805) 835-2893 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Kings Oil Tools](https://ctcfinder.com/tester/kings-oil-tools-paso-robles/)** — Paso Robles, CA 93446 — (805) 610-2796 — 1 mi. Services: mobile testing, OBD testing.
- **[Mid-State Repair & Service](https://ctcfinder.com/tester/mid-state-repair-and-service-paso-robles/)** — 1946 Wood Duck Ln, Paso Robles, CA 93446 — (805) 729-1068 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Mtech Unlimited](https://ctcfinder.com/tester/mtech-unlimited-templeton/)** — Templeton, CA 93465 — (805) 550-8744 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Affordable Auto Care](https://ctcfinder.com/tester/affordable-auto-care-atascadero/)** — 4495 Traffic Way, Atascadero, CA 93422 — (805) 258-1495 — 13 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.