---
title: "Jonathan Aguas — Clean Truck Check, Los Angeles, CA"
description: "Jonathan Aguas in Los Angeles, 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/jonathan-aguas-los-angeles/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Jonathan Aguas

Clean Truck Check tester in Los Angeles, 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 | Los Angeles, CA 90006 |
| County | Los Angeles County |
| Phone | (323) 742-0853 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Jonathan Aguas 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 Mobile Smoke Tester in Los Angeles, about 1 mile away. [See listing](https://ctcfinder.com/tester/mobile-smoke-tester-los-angeles/).

## Clean Truck Check testers in Los Angeles County

Jonathan Aguas 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 Los Angeles itself there are 69 listed businesses, 60 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 Jonathan Aguas offer mobile Clean Truck Check testing?

Yes. Jonathan Aguas 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 Jonathan Aguas test a 2012 or older diesel truck?

Jonathan Aguas does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Mobile Smoke Tester](https://ctcfinder.com/tester/mobile-smoke-tester-los-angeles/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Jonathan Aguas charge for a Clean Truck Check?

Jonathan Aguas has not published prices with us; call (323) 742-0853 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 Jonathan Aguas a CARB-credentialed tester?

Jonathan Aguas 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

- **[Mobile Smoke Tester](https://ctcfinder.com/tester/mobile-smoke-tester-los-angeles/)** — 3957 W 7th St 22, Los Angeles, CA 90005 — (310) 617-7296 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[LA Smog Center](https://ctcfinder.com/tester/la-smog-center-los-angeles/)** — 3671 S Grand Ave, Los Angeles, CA 90007 — (323) 448-7891 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Usc Smog](https://ctcfinder.com/tester/usc-smog-los-angeles/)** — 3000 S Figueroa St, Los Angeles, CA 90007 — (213) 605-1955 — 1 mi. Services: not listed.
- **[CTC Pro](https://ctcfinder.com/tester/ctc-pro-los-angeles/)** — Los Angeles, CA 90017 — (323) 770-8738 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Eddie’s Auto](https://ctcfinder.com/tester/eddies-auto-los-angeles/)** — 3758 S Harvard Blvd, Los Angeles, CA 90018 — (323) 338-5642 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Diesel Emissions](https://ctcfinder.com/tester/diesel-emissions-los-angeles/)** — 123 North Hobart Boulevard, Los Angeles, CA 90004 — (323) 362-4898 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.