---
title: "Michael Siverson — Clean Truck Check, Rodeo, CA | CTC Finder"
description: "Michael Siverson in Rodeo, 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/michael-siverson-rodeo/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Michael Siverson

Clean Truck Check tester in Rodeo, CA (Contra Costa 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 | Rodeo, CA 94572 |
| County | Contra Costa County |
| Phone | (510) 672-1557 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Michael Siverson 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 CD & Power in Martinez, about 5 miles away. [See listing](https://ctcfinder.com/tester/cd-and-power-martinez/).

## Clean Truck Check testers in Contra Costa County

Michael Siverson is one of 61 testing businesses in Contra Costa County on CARB's public tester list. 57 of them offer mobile testing and 38 do smoke opacity tests.

## 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 Michael Siverson offer mobile Clean Truck Check testing?

Yes. Michael Siverson 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 Michael Siverson test a 2012 or older diesel truck?

Michael Siverson does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [CD & Power](https://ctcfinder.com/tester/cd-and-power-martinez/) (about 5 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Michael Siverson charge for a Clean Truck Check?

Michael Siverson has not published prices with us; call (510) 672-1557 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 Michael Siverson a CARB-credentialed tester?

Michael Siverson 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

- **[Hercules CTC Clean Truck Check & Bit Inspection LL](https://ctcfinder.com/tester/hercules-ctc-clean-truck-check-and-bit-inspection-ll-hercules/)** — 205 Ridgeview Ter, Hercules, CA 94547 — (510) 375-2397 — 2 mi. Services: mobile testing, OBD testing.
- **[Days Smog& DMV Registration Services](https://ctcfinder.com/tester/days-smog-and-dmv-registration-services-vallejo/)** — 1624 Broadway St, Vallejo, CA 94590 — (707) 997-0420 — 5 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Touch Trucking LLC](https://ctcfinder.com/tester/touch-trucking-llc-vallejo/)** — 301 Greenfield Ave, Vallejo, CA 94590 — (510) 496-1005 — 5 mi. Services: mobile testing, OBD testing.
- **[Vallejo Smog Dog](https://ctcfinder.com/tester/vallejo-smog-dog-vallejo/)** — 1921 Sonoma Blvd, Vallejo, CA 94590 — (707) 557-7664 — 5 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[CD & Power](https://ctcfinder.com/tester/cd-and-power-martinez/)** — 150 Nardi Ln, Martinez, CA 94553 — (925) 387-9600 — 5 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Guys Smog Inc](https://ctcfinder.com/tester/guys-smog-inc-martinez/)** — 906 Alhambra Ave, Martinez, CA 94553 — (925) 285-9698 — 5 mi. Services: mobile testing, OBD testing, motorhome testing.