---
title: "A1 Smog Test Center — Clean Truck Check, Lawndale, CA 4135 Redondo Beach Blvd 1008 1/2 E 18th st"
description: "A1 Smog Test Center in Lawndale, 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/a1-smog-test-center-lawndale-2/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# A1 Smog Test Center

Clean Truck Check tester in Lawndale, 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 | 4135 Redondo Beach Blvd 1008 1/2 E 18th st, Lawndale, CA 90260 |
| County | Los Angeles County |
| Phone | (213) 908-3478 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks A1 Smog Test Center 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 Christopher Hernandez in Torrance, about 2 miles away. [See listing](https://ctcfinder.com/tester/christopher-hernandez-torrance/).

## Clean Truck Check testers in Los Angeles County

A1 Smog Test Center 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 Lawndale itself there are 4 listed businesses, 3 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 A1 Smog Test Center offer mobile Clean Truck Check testing?

Yes. A1 Smog Test Center 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 A1 Smog Test Center test a 2012 or older diesel truck?

A1 Smog Test Center does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Christopher Hernandez](https://ctcfinder.com/tester/christopher-hernandez-torrance/) (about 2 miles). Trucks from 2013 on get an OBD scan instead.

### How much does A1 Smog Test Center charge for a Clean Truck Check?

A1 Smog Test Center has not published prices with us; call (213) 908-3478 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 A1 Smog Test Center a CARB-credentialed tester?

A1 Smog Test Center 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

- **[A1 Smog Test Center](https://ctcfinder.com/tester/a1-smog-test-center-lawndale/)** — 4135 Redondo beach blvd, Lawndale, CA 90260 — (310) 400-4037 — 1 mi. Services: OBD testing.
- **[CTC Mobile Pro](https://ctcfinder.com/tester/ctc-mobile-pro-lawndale/)** — 4571 W 168th St, Lawndale, CA 90260 — (424) 456-0589 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Tocs Vehicle Registration Service](https://ctcfinder.com/tester/tocs-vehicle-registration-service-lawndale/)** — 14623 Hawthorne Blvd Suite 106, Lawndale, CA 90260 — (310) 619-7656 — 1 mi. Services: mobile testing, OBD testing.
- **[Carlos Martinez](https://ctcfinder.com/tester/carlos-martinez-redondo-beach/)** — Redondo Beach, CA 90278 — (310) 906-0988 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Los Angeles Clean Truck Check](https://ctcfinder.com/tester/los-angeles-clean-truck-check-redondo-beach/)** — 2618 184th St, Redondo Beach, CA 90278 — (310) 989-1140 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Amy Morales](https://ctcfinder.com/tester/amy-morales-hawthorne/)** — Hawthorne, CA 90250 — (310) 613-3882 — 2 mi. Services: mobile testing, OBD testing.