---
title: "Mark Caudillo — Clean Truck Check, Bellflower, CA"
description: "Mark Caudillo in Bellflower, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome…"
url: "https://ctcfinder.com/tester/mark-caudillo-bellflower/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Mark Caudillo

Clean Truck Check tester in Bellflower, CA (Los Angeles 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 | Bellflower, CA 90706 |
| County | Los Angeles County |
| Phone | (562) 916-6344 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Mark Caudillo 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 | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

## Clean Truck Check testers in Los Angeles County

Mark Caudillo is one of 516 testing businesses in Los Angeles County on CARB's public tester list. 465 of them offer mobile testing and 190 do smoke opacity tests. In Bellflower itself there are 8 listed businesses, 8 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 Mark Caudillo offer mobile Clean Truck Check testing?

Yes. Mark Caudillo 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 Mark Caudillo test a 2012 or older diesel truck?

Yes. Mark Caudillo lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See [OBD vs smoke opacity](https://ctcfinder.com/guide/obd-vs-smoke-opacity-test/).

### How much does Mark Caudillo charge for a Clean Truck Check?

Mark Caudillo has not published prices with us; call (562) 916-6344 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 Mark Caudillo a CARB-credentialed tester?

Mark Caudillo 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

- **[Busd](https://ctcfinder.com/tester/busd-bellflower/)** — 15330 Woodruff Ave, Bellflower, CA 90706 — (909) 568-5351 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Elizabeth Hanohano](https://ctcfinder.com/tester/elizabeth-hanohano-bellflower/)** — Bellflower, CA 90706 — (562) 650-7102 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Jacob Ochoa](https://ctcfinder.com/tester/jacob-ochoa-bellflower/)** — Bellflower, CA 90706 — (562) 338-2866 — 1 mi. Services: mobile testing, OBD testing.
- **[Jeffery Gunter](https://ctcfinder.com/tester/jeffery-gunter-bellflower/)** — Bellflower, CA 90706 — (213) 305-4955 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Macias Trucking Testing](https://ctcfinder.com/tester/macias-trucking-testing-bellflower/)** — 13405 Clark Ave, Bellflower, CA 90706 — (562) 321-3558 — 1 mi. Services: mobile testing, smoke opacity (non-OBD) testing.
- **[Mtpservice Inc.](https://ctcfinder.com/tester/mtpservice-inc-bellflower/)** — 10506 Trabuco St, Bellflower, CA 90706 — (714) 930-6726 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.