---
title: "Docs Towing Service — Clean Truck Check, Los Banos, CA"
description: "Docs Towing Service in Los Banos, 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/docs-towing-service-los-banos/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Docs Towing Service

Clean Truck Check tester in Los Banos, CA (Merced 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 | 2710 E Pacheco Blvd, Los Banos, CA 93635 |
| County | Merced County |
| Phone | (209) 619-9717 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Docs Towing Service 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 Jesus Nava in Los Banos, about 1 mile away. [See listing](https://ctcfinder.com/tester/jesus-nava-los-banos/).

## Clean Truck Check testers in Merced County

Docs Towing Service is one of 40 testing businesses in Merced County on CARB's public tester list. 35 of them offer mobile testing and 12 do smoke opacity tests. In Los Banos itself there are 8 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 Docs Towing Service offer mobile Clean Truck Check testing?

Yes. Docs Towing Service 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 Docs Towing Service test a 2012 or older diesel truck?

Docs Towing Service does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Jesus Nava](https://ctcfinder.com/tester/jesus-nava-los-banos/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Docs Towing Service charge for a Clean Truck Check?

Docs Towing Service has not published prices with us; call (209) 619-9717 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 Docs Towing Service a CARB-credentialed tester?

Docs Towing Service 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

- **[Angel Solache](https://ctcfinder.com/tester/angel-solache-los-banos/)** — Los Banos, CA 93635 — (831) 537-4291 — 1 mi. Services: not listed.
- **[Isaiah Chavez](https://ctcfinder.com/tester/isaiah-chavez-los-banos/)** — Los Banos, CA 93635 — (209) 270-2690 — 1 mi. Services: mobile testing.
- **[Jesus Nava](https://ctcfinder.com/tester/jesus-nava-los-banos/)** — Los Banos, CA 93635 — (209) 649-2304 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[The Valley Smog](https://ctcfinder.com/tester/the-valley-smog-los-banos/)** — 225 W H St, Los Banos, CA 93635 — (209) 675-4808 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Titan Towing and Roadside Assistance, Inc.](https://ctcfinder.com/tester/titan-towing-and-roadside-assistance-inc-los-banos/)** — 1559 Place Rd, Los Banos, CA 93635 — (209) 827-3200 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Westside Truck Repair INC](https://ctcfinder.com/tester/westside-truck-repair-inc-los-banos/)** — 24080 Ingomar Grade, Los Banos, CA 93635 — (209) 826-3100 — 1 mi. Services: OBD testing.