---
title: "Independent Bookkeeper — Clean Truck Check, Ukiah, CA"
description: "Independent Bookkeeper in Ukiah, 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/independent-bookkeeper-ukiah/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Independent Bookkeeper

Clean Truck Check tester in Ukiah, CA (Mendocino 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 | Ukiah, CA 95482 |
| County | Mendocino County |
| Phone | (707) 367-2699 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Independent Bookkeeper 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 Peterson Cat in Ukiah, about 1 mile away. [See listing](https://ctcfinder.com/tester/peterson-cat-ukiah/).

## Clean Truck Check testers in Mendocino County

Independent Bookkeeper is one of 8 testing businesses in Mendocino County on CARB's public tester list. 8 of them offer mobile testing and 4 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 Independent Bookkeeper offer mobile Clean Truck Check testing?

Yes. Independent Bookkeeper 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 Independent Bookkeeper test a 2012 or older diesel truck?

Independent Bookkeeper does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Peterson Cat](https://ctcfinder.com/tester/peterson-cat-ukiah/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Independent Bookkeeper charge for a Clean Truck Check?

Independent Bookkeeper has not published prices with us; call (707) 367-2699 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 Independent Bookkeeper a CARB-credentialed tester?

Independent Bookkeeper 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

- **[Peterson Cat](https://ctcfinder.com/tester/peterson-cat-ukiah/)** — Ukiah, CA 95482 — (707) 367-8242 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[North Coast Mowers](https://ctcfinder.com/tester/north-coast-mowers-hopland/)** — 12350 Hewlitt Rd., Hopland, CA 95449 — (707) 391-7804 — 16 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Triple F Industries LLC](https://ctcfinder.com/tester/triple-f-industries-llc-hopland/)** — 8500 Highway 175, Hopland, CA 95449 — (707) 331-3039 — 16 mi. Services: mobile testing, OBD testing.
- **[RK Land Management](https://ctcfinder.com/tester/rk-land-management-lakeport/)** — 2305 Big Valley Rd, Lakeport, CA 95453 — (707) 245-1737 — 18 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Essential Fleet services LLC](https://ctcfinder.com/tester/essential-fleet-services-llc-willits/)** — 1435 Baechtel Rd, Willits, CA 95490 — (919) 760-0709 — 24 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Spackman CTC Mobile Mechanic Services](https://ctcfinder.com/tester/spackman-ctc-mobile-mechanic-services-willits/)** — 27481 Coyote Pl, Willits, CA 95490 — (707) 391-4675 — 24 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.