---
title: "The Second Generation Inc. — Clean Truck Check, Crest Hill, IL"
description: "The Second Generation Inc. in Crest Hill, IL is on CARB's Clean Truck Check tester list. Offers OBD testing, motorhome testing. Phone, address and nearby…"
url: "https://ctcfinder.com/tester/the-second-generation-inc-crest-hill-il/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# The Second Generation Inc.

Clean Truck Check tester in Crest Hill, IL.

> 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 | 1724 Russ Way, Crest Hill, IL 60403 |
| Phone | (224) 595-1391 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks The Second Generation 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 | Not listed |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is AIRLIMITS - Joliet-IL in Joliet, about 1 mile away. [See listing](https://ctcfinder.com/tester/airlimits-joliet-il-joliet-il/).

If you need a tester at your yard, the nearest listed tester that offers mobile testing is AIRLIMITS - Joliet-IL in Joliet, about 1 mile away. [See listing](https://ctcfinder.com/tester/airlimits-joliet-il-joliet-il/).

## Clean Truck Check testers in Illinois

The Second Generation Inc. is one of 65 testing businesses in Illinois on CARB's public tester list. 44 of them offer mobile testing and 19 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 The Second Generation 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 [AIRLIMITS - Joliet-IL](https://ctcfinder.com/tester/airlimits-joliet-il-joliet-il/) (about 1 mile).

### Can The Second Generation Inc. test a 2012 or older diesel truck?

The Second Generation Inc. does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [AIRLIMITS - Joliet-IL](https://ctcfinder.com/tester/airlimits-joliet-il-joliet-il/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does The Second Generation Inc. charge for a Clean Truck Check?

The Second Generation Inc. has not published prices with us; call (224) 595-1391 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 The Second Generation Inc. a CARB-credentialed tester?

The Second Generation 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

- **[AIRLIMITS - Joliet-IL](https://ctcfinder.com/tester/airlimits-joliet-il-joliet-il/)** — Joliet, IL 60435 — (800) 788-5241 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Nova Repair LLC](https://ctcfinder.com/tester/nova-repair-llc-romeoville-il/)** — 1320 Enterprise Dr, Romeoville, IL 60446 — (907) 251-6370 — 5 mi. Services: not listed.
- **[Truck Clinic Corp](https://ctcfinder.com/tester/truck-clinic-corp-romeoville-il/)** — Romeoville, IL 60446 — (815) 887-0212 — 5 mi. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Roman Znak](https://ctcfinder.com/tester/roman-znak-joliet-il/)** — Joliet, IL 60436 — (773) 732-2753 — 5 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Lionstar Express Inc](https://ctcfinder.com/tester/lionstar-express-inc-joliet-il/)** — 1508 Baltz Dr, Joliet, IL 60431 — (224) 567-9381 — 5 mi. Services: mobile testing, OBD testing.
- **[SSM Trucking Inc.](https://ctcfinder.com/tester/ssm-trucking-inc-joliet-il/)** — 1508 Baltz Dr, Joliet, IL 60431 — (224) 567-9245 — 5 mi. Services: mobile testing, OBD testing.