---
title: "Adrian Alcaraz — Clean Truck Check, Hollister, CA"
description: "Adrian Alcaraz in Hollister, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address and nearby…"
url: "https://ctcfinder.com/tester/adrian-alcaraz-hollister/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Adrian Alcaraz

Clean Truck Check tester in Hollister, CA (San Benito 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 | Hollister, CA 95023 |
| County | San Benito County |
| Phone | (408) 550-4348 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Adrian Alcaraz 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 | Yes |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Allen Equipment Service and Repair in Hollister, about 1 mile away. [See listing](https://ctcfinder.com/tester/allen-equipment-service-and-repair-hollister/).

## Clean Truck Check testers in San Benito County

Adrian Alcaraz is one of 7 testing businesses in San Benito County on CARB's public tester list. 6 of them offer mobile testing and 2 do smoke opacity tests. In Hollister itself there are 7 listed businesses, 6 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 Adrian Alcaraz offer mobile Clean Truck Check testing?

Yes. Adrian Alcaraz 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 Adrian Alcaraz test a 2012 or older diesel truck?

Adrian Alcaraz does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Allen Equipment Service and Repair](https://ctcfinder.com/tester/allen-equipment-service-and-repair-hollister/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Adrian Alcaraz charge for a Clean Truck Check?

Adrian Alcaraz has not published prices with us; call (408) 550-4348 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 Adrian Alcaraz a CARB-credentialed tester?

Adrian Alcaraz 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

- **[Abraham](https://ctcfinder.com/tester/abraham-hollister/)** — 956 East St, Hollister, CA 95023 — (831) 524-9632 — 1 mi. Services: mobile testing, OBD testing.
- **[Allen Equipment Service and Repair](https://ctcfinder.com/tester/allen-equipment-service-and-repair-hollister/)** — 301 Glen Falls Ct, Hollister, CA 95023 — (831) 320-5792 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Central California Diesel Parts and service](https://ctcfinder.com/tester/central-california-diesel-parts-and-service-hollister/)** — 2250 Pinnacle Ct, Hollister, CA 95023 — (831) 902-8701 — 1 mi. Services: mobile testing, OBD testing.
- **[Miguel Franco](https://ctcfinder.com/tester/miguel-franco-hollister/)** — Hollister, CA 95023 — (831) 537-6093 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[San Benito Smog](https://ctcfinder.com/tester/san-benito-smog-hollister/)** — 731 San Felipe Rd B1, Hollister, CA 95023 — (831) 537-1349 — 1 mi. Services: OBD testing, motorhome testing.
- **[The carb inspector](https://ctcfinder.com/tester/the-carb-inspector-hollister/)** — 2618 Glenview Dr, Hollister, CA 95023 — (408) 658-7565 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.