---
title: "Cortez & Co LLC — Clean Truck Check, Hesperia, CA"
description: "Cortez & Co LLC in Hesperia, 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/cortez-and-co-llc-hesperia/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Cortez & Co LLC

Clean Truck Check tester in Hesperia, CA (San Bernardino 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 | 13873 Plantain St, Hesperia, CA 92344 |
| County | San Bernardino County |
| Phone | (909) 637-7959 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Cortez & Co 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 | Yes |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is FleetCrew INC.. in Hesperia, about 1 mile away. [See listing](https://ctcfinder.com/tester/fleetcrew-inc-hesperia/).

## Clean Truck Check testers in San Bernardino County

Cortez & Co LLC is one of 277 testing businesses in San Bernardino County on CARB's public tester list. 243 of them offer mobile testing and 98 do smoke opacity tests. In Hesperia itself there are 20 listed businesses, 18 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 Cortez & Co LLC offer mobile Clean Truck Check testing?

Yes. Cortez & Co 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 Cortez & Co LLC test a 2012 or older diesel truck?

Cortez & Co LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [FleetCrew INC..](https://ctcfinder.com/tester/fleetcrew-inc-hesperia/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Cortez & Co LLC charge for a Clean Truck Check?

Cortez & Co LLC has not published prices with us; call (909) 637-7959 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 Cortez & Co LLC a CARB-credentialed tester?

Cortez & Co 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

- **[DSB Cargo INC](https://ctcfinder.com/tester/dsb-cargo-inc-hesperia/)** — 9466 Agave Dr, Hesperia, CA 92344 — (669) 255-3832 — 1 mi. Services: mobile testing, OBD testing.
- **[FleetCrew INC..](https://ctcfinder.com/tester/fleetcrew-inc-hesperia/)** — 8899 Three Flags Rd, Hesperia, CA 92344 — (949) 624-4644 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Jdmobile](https://ctcfinder.com/tester/jdmobile-hesperia/)** — 13009 Tehachapi St, Hesperia, CA 92344 — (818) 239-9457 — 1 mi. Services: OBD testing.
- **[Frank Cadilli](https://ctcfinder.com/tester/frank-cadilli-oak-hills/)** — Oak Hills, CA 92344 — (760) 995-6242 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[LH](https://ctcfinder.com/tester/lh-oak-hills/)** — 12005 Lamplighter Ln, Oak Hills, CA 92344 — (760) 553-3788 — 1 mi. Services: mobile testing, OBD testing.
- **[Michelle Velasquez](https://ctcfinder.com/tester/michelle-velasquez-oak-hills/)** — Oak Hills, CA 92344 — (562) 843-2465 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.