---
title: "ASM Truck Services INC — Clean Truck Check, Morrisville, PA"
description: "ASM Truck Services INC in Morrisville, PA is on CARB's Clean Truck Check tester list. Offers OBD testing, smoke opacity (non-OBD) testing. Phone, address and…"
url: "https://ctcfinder.com/tester/asm-truck-services-inc-morrisville-pa/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# ASM Truck Services INC

Clean Truck Check tester in Morrisville, PA.

> 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 | 1501 S Pennsylvania Ave, Morrisville, PA 19067 |
| Phone | (929) 969-3091 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks ASM Truck Services INC 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 | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Not listed |

If you need a tester at your yard, the nearest listed tester that offers mobile testing is Bristol Springs Shop & Alignment Inc in Levittown, about 6 miles away. [See listing](https://ctcfinder.com/tester/bristol-springs-shop-and-alignment-inc-levittown-pa/).

## Clean Truck Check testers in Pennsylvania

ASM Truck Services INC is one of 16 testing businesses in Pennsylvania on CARB's public tester list. 10 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 ASM Truck Services INC 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 [Bristol Springs Shop & Alignment Inc](https://ctcfinder.com/tester/bristol-springs-shop-and-alignment-inc-levittown-pa/) (about 6 miles).

### Can ASM Truck Services INC test a 2012 or older diesel truck?

Yes. ASM Truck Services INC lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See [OBD vs smoke opacity](https://ctcfinder.com/guide/obd-vs-smoke-opacity-test/).

### How much does ASM Truck Services INC charge for a Clean Truck Check?

ASM Truck Services INC has not published prices with us; call (929) 969-3091 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 ASM Truck Services INC a CARB-credentialed tester?

ASM Truck Services INC 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

- **[Bristol Springs Shop & Alignment Inc](https://ctcfinder.com/tester/bristol-springs-shop-and-alignment-inc-levittown-pa/)** — 1606 Manning Blvd Suite B, Levittown, PA 19057 — (929) 231-7432 — 6 mi. Services: mobile testing, OBD testing.
- **[Lazy Tiger Inc](https://ctcfinder.com/tester/lazy-tiger-inc-levittown-pa/)** — 7800 Bristol Pike, Levittown, PA 19057 — (267) 746-5230 — 6 mi. Services: mobile testing, OBD testing.
- **[Bristol Truck Repair LLC](https://ctcfinder.com/tester/bristol-truck-repair-llc-bristol-pa/)** — 1498 Clyde Waite Dr, Bristol, PA 19007 — (215) 961-7526 — 8 mi. Services: OBD testing.
- **[Best Truck Trailer Repair Inc](https://ctcfinder.com/tester/best-truck-trailer-repair-inc-philadelphia-pa/)** — 3150 Orthodox St, Philadelphia, PA 19137 — (267) 410-5147 — 20 mi. Services: mobile testing, OBD testing.