---
title: "Santa Margarita Catholic HS — Clean Truck Check, Rancho Santa Margarita, CA"
description: "Santa Margarita Catholic HS in Rancho Santa Margarita, CA is on CARB's Clean Truck Check tester list. Offers OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/santa-margarita-catholic-hs-rancho-santa-margarita/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Santa Margarita Catholic HS

Clean Truck Check tester in Rancho Santa Margarita, CA (Orange 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 | Rancho Santa Margarita, CA 92688 |
| County | Orange County |
| Phone | (657) 605-6852 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Santa Margarita Catholic HS 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 Santa Margarita Ford Fleet Center in Rancho Santa Margarita, about 1 mile away. [See listing](https://ctcfinder.com/tester/santa-margarita-ford-fleet-center-rancho-santa-margarita/).

If you need a tester at your yard, the nearest listed tester that offers mobile testing is BB Mobile CARB Testing in Rancho Santa Margarita, about 1 mile away. [See listing](https://ctcfinder.com/tester/bb-mobile-carb-testing-rancho-santa-margarita/).

## Clean Truck Check testers in Orange County

Santa Margarita Catholic HS is one of 159 testing businesses in Orange County on CARB's public tester list. 146 of them offer mobile testing and 84 do smoke opacity tests. In Rancho Santa Margarita itself there are 3 listed businesses, 2 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 Santa Margarita Catholic HS offer mobile Clean Truck Check testing?

Not according to CARB's tester list; plan to bring the truck to the tester. The nearest listed mobile tester is [BB Mobile CARB Testing](https://ctcfinder.com/tester/bb-mobile-carb-testing-rancho-santa-margarita/) (about 1 mile).

### Can Santa Margarita Catholic HS test a 2012 or older diesel truck?

Santa Margarita Catholic HS does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Santa Margarita Ford Fleet Center](https://ctcfinder.com/tester/santa-margarita-ford-fleet-center-rancho-santa-margarita/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Santa Margarita Catholic HS charge for a Clean Truck Check?

Santa Margarita Catholic HS has not published prices with us; call (657) 605-6852 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 Santa Margarita Catholic HS a CARB-credentialed tester?

Santa Margarita Catholic HS 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

- **[BB Mobile CARB Testing](https://ctcfinder.com/tester/bb-mobile-carb-testing-rancho-santa-margarita/)** — 17 Ledgewood Dr, Rancho Santa Margarita, CA 92688 — (949) 523-4550 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Santa Margarita Ford Fleet Center](https://ctcfinder.com/tester/santa-margarita-ford-fleet-center-rancho-santa-margarita/)** — 29922 Avenida de las Bandera, Rancho Santa Margarita, CA 92688 — (949) 322-6550 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Armin Gederi](https://ctcfinder.com/tester/armin-gederi-mission-viejo/)** — Mission Viejo, CA 92692 — (818) 809-9423 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Hdquickcheck](https://ctcfinder.com/tester/hdquickcheck-mission-viejo/)** — Mission Viejo, CA 92691 — (949) 538-8094 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Quality Smog](https://ctcfinder.com/tester/quality-smog-mission-viejo/)** — 26811 Trabuco Rd, Mission Viejo, CA 92691 — (949) 454-4195 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Ez inspection Services](https://ctcfinder.com/tester/ez-inspection-services-trabuco-canyon/)** — 19566 Arezzo St, Trabuco Canyon, CA 92679 — (949) 820-1869 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.