---
title: "Season Bus Specialist — Clean Truck Check, Hacienda Heights, CA"
description: "Season Bus Specialist in Hacienda Heights, CA is on CARB's Clean Truck Check tester list. Offers OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/season-bus-specialist-hacienda-heights/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Season Bus Specialist

Clean Truck Check tester in Hacienda Heights, 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 | 14835 Clark Ave, Hacienda Heights, CA 91745 |
| County | Los Angeles County |
| Phone | (626) 618-9900 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Season Bus Specialist 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 Mike's Mobile Clean Truck Check in Hacienda Heights, about 1 mile away. [See listing](https://ctcfinder.com/tester/mikes-mobile-clean-truck-check-hacienda-heights/).

If you need a tester at your yard, the nearest listed tester that offers mobile testing is CaliTorque in Hacienda Heights, about 1 mile away. [See listing](https://ctcfinder.com/tester/calitorque-hacienda-heights/).

## Clean Truck Check testers in Los Angeles County

Season Bus Specialist 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 Hacienda Heights 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 Season Bus Specialist offer mobile Clean Truck Check testing?

Not according to CARB's tester list; plan to bring the truck to the tester. The nearest listed mobile tester is [CaliTorque](https://ctcfinder.com/tester/calitorque-hacienda-heights/) (about 1 mile).

### Can Season Bus Specialist test a 2012 or older diesel truck?

Season Bus Specialist does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Mike's Mobile Clean Truck Check](https://ctcfinder.com/tester/mikes-mobile-clean-truck-check-hacienda-heights/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Season Bus Specialist charge for a Clean Truck Check?

Season Bus Specialist has not published prices with us; call (626) 618-9900 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 Season Bus Specialist a CARB-credentialed tester?

Season Bus Specialist 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

- **[CaliTorque](https://ctcfinder.com/tester/calitorque-hacienda-heights/)** — 2401 S Hacienda Blvd, Hacienda Heights, CA 91745 — (424) 731-6107 — 1 mi. Services: mobile testing, OBD testing.
- **[LEI LI](https://ctcfinder.com/tester/lei-li-hacienda-heights/)** — Hacienda Heights, CA 91745 — (408) 768-1166 — 1 mi. Services: mobile testing, OBD testing.
- **[Mike's Mobile Clean Truck Check](https://ctcfinder.com/tester/mikes-mobile-clean-truck-check-hacienda-heights/)** — 3266 El Greco Court, Hacienda Heights, CA 91745 — (626) 532-6189 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Joe Chavarin](https://ctcfinder.com/tester/joe-chavarin-la-puente/)** — La Puente, CA 91744 — (323) 854-9781 — 3 mi. Services: mobile testing, OBD testing.
- **[Jose Carrillo](https://ctcfinder.com/tester/jose-carrillo-la-puente/)** — La Puente, CA 91744 — (626) 251-7676 — 3 mi. Services: mobile testing, OBD testing.
- **[Mobile Diesel Smog Check](https://ctcfinder.com/tester/mobile-diesel-smog-check-la-puente/)** — 15911 Hill St, La Puente, CA 91744 — (626) 366-9599 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.