---
title: "Betos mobile & truck services LLC — Clean Truck Check, Royal Oaks, CA"
description: "Betos mobile & truck services LLC in Royal Oaks, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby…"
url: "https://ctcfinder.com/tester/betos-mobile-and-truck-services-llc-royal-oaks/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Betos mobile & truck services LLC

Clean Truck Check tester in Royal Oaks, CA (Santa Cruz 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 | 415 Hall Rd, Royal Oaks, CA 95076 |
| County | Santa Cruz County |
| Phone | (831) 247-0392 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Betos mobile & truck services 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 Alex Lopez in Watsonville, about 1 mile away. [See listing](https://ctcfinder.com/tester/alex-lopez-watsonville/).

## Clean Truck Check testers in Santa Cruz County

Betos mobile & truck services LLC is one of 18 testing businesses in Santa Cruz County on CARB's public tester list. 15 of them offer mobile testing and 6 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 Betos mobile & truck services LLC offer mobile Clean Truck Check testing?

Yes. Betos mobile & truck services 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 Betos mobile & truck services LLC test a 2012 or older diesel truck?

Betos mobile & truck services LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Alex Lopez](https://ctcfinder.com/tester/alex-lopez-watsonville/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Betos mobile & truck services LLC charge for a Clean Truck Check?

Betos mobile & truck services LLC has not published prices with us; call (831) 247-0392 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 Betos mobile & truck services LLC a CARB-credentialed tester?

Betos mobile & truck services 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

- **[Alex Lopez](https://ctcfinder.com/tester/alex-lopez-watsonville/)** — Watsonville, CA 95076 — (831) 566-1827 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Best Service Automotive & Truck Repair](https://ctcfinder.com/tester/best-service-automotive-and-truck-repair-watsonville/)** — 18 Walker St, Watsonville, CA 95076 — (831) 353-1533 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Crafton’s smog check](https://ctcfinder.com/tester/craftons-smog-check-watsonville/)** — 771 Freedom Blvd, Watsonville, CA 95076 — (831) 227-3766 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Daniel Dye](https://ctcfinder.com/tester/daniel-dye-watsonville/)** — Watsonville, CA 95076 — (831) 713-8935 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Easy Tune Up 95$](https://ctcfinder.com/tester/easy-tune-up-95-watsonville/)** — 469 Union St, Watsonville, CA 95076 — (831) 535-8373 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Juan Calles](https://ctcfinder.com/tester/juan-calles-watsonville/)** — Watsonville, CA 95076 — (831) 212-5327 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.