---
title: "TTS Engineering — Clean Truck Check, Stanton, CA"
description: "TTS Engineering in Stanton, 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/tts-engineering-stanton/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# TTS Engineering

Clean Truck Check tester in Stanton, 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 | Stanton, CA 90680 |
| County | Orange County |
| Phone | (949) 942-0556 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks TTS Engineering 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 Smog and More in Stanton, about 1 mile away. [See listing](https://ctcfinder.com/tester/smog-and-more-stanton/).

## Clean Truck Check testers in Orange County

TTS Engineering 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.

## 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 TTS Engineering offer mobile Clean Truck Check testing?

Yes. TTS Engineering 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 TTS Engineering test a 2012 or older diesel truck?

TTS Engineering does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Smog and More](https://ctcfinder.com/tester/smog-and-more-stanton/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does TTS Engineering charge for a Clean Truck Check?

TTS Engineering has not published prices with us; call (949) 942-0556 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 TTS Engineering a CARB-credentialed tester?

TTS Engineering 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

- **[Smog and More](https://ctcfinder.com/tester/smog-and-more-stanton/)** — 10711 Beach Blvd, Stanton, CA 90680 — (714) 995-7591 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Auto Research & Clean Truck Check](https://ctcfinder.com/tester/auto-research-and-clean-truck-check-garden-grove/)** — 7527 Park Ave, Garden Grove, CA 92841 — (714) 728-8228 — 1 mi. Services: mobile testing, OBD testing.
- **[LosAngeles, LongBeach Port mobile service](https://ctcfinder.com/tester/losangeles-longbeach-port-mobile-service-garden-grove/)** — 12242 Fieldgate St, Garden Grove, CA 92841 — (213) 400-7777 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Tu Nguyen](https://ctcfinder.com/tester/tu-nguyen-garden-grove/)** — Garden Grove, CA 92841 — (714) 312-9480 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Golden state air compliance](https://ctcfinder.com/tester/golden-state-air-compliance-anaheim/)** — Anaheim, CA 92804 — (714) 767-7955 — 2 mi. Services: mobile testing.
- **[Hoang truong](https://ctcfinder.com/tester/hoang-truong-anaheim/)** — Anaheim, CA 92804 — (714) 397-8025 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.