Palmer Enterprises Truck & Auto Repair LLC
Clean Truck Check tester in Grass Valley, CA (Nevada County).
- OBD test
Palmer Enterprises Truck & Auto Repair LLC appears on CARB's public list of credentialed Clean Truck Check testers. It lists OBD testing.
- Location
- 11352 E Bennett Rd, Grass Valley, CA 95945
- County
- Nevada County
- Phone
- (530) 272-3439
- Mobile testing
- No (test at the shop)
- OBD testing
- Yes
- Smoke opacity (non-OBD)
- No
- Motorhomes
- No
- Credentialed testers
- 1
- Last verified
Call (530) 272-3439 Open in Google Maps
Before you call
- Have your VIN, odometer reading and plate number ready.
- Your vehicle must be registered in CTC-VIS and the annual compliance fee paid; the tester submits the result to CARB.
- Ask for the price per vehicle. Typical published prices for an OBD test are $50–$135 per vehicle (see cost guide).
Which trucks Palmer Enterprises Truck & Auto Repair LLC can test
The test CARB requires depends on the engine's fuel and model year. Based on the services Palmer Enterprises Truck & Auto Repair LLC lists on CARB's tester list:
| 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 Quentin Turek in Colfax, about 8 miles away. See listing.
If you need a tester at your yard, the nearest listed tester that offers mobile testing is Cody's Clean Truck Check in Grass Valley, about 1 mile away. See listing.
Clean Truck Check testers in Nevada County
Palmer Enterprises Truck & Auto Repair LLC is one of 8 testing businesses in Nevada County on CARB's public tester list. 5 of them offer mobile testing and 5 do smoke opacity tests. All testers in Nevada County.
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. You can test up to 90 days before a deadline. Get a free email reminder before each one.
How to check a tester's credential
CARB publishes its Clean Truck Check tester list, where Palmer Enterprises Truck & Auto Repair LLC appears as of November 1, 2026. Listing there is optional, so a missing name does not always mean a tester is not credentialed. After the test, check that the passing result shows for your vehicle in CTC-VIS; that is what counts for compliance.
Frequently asked questions
Does Palmer Enterprises Truck & Auto Repair LLC 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 Cody's Clean Truck Check (about 1 mile).
Can Palmer Enterprises Truck & Auto Repair LLC test a 2012 or older diesel truck?
Palmer Enterprises Truck & Auto Repair LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is Quentin Turek (about 8 miles). Trucks from 2013 on get an OBD scan instead.
How much does Palmer Enterprises Truck & Auto Repair LLC charge for a Clean Truck Check?
Palmer Enterprises Truck & Auto Repair LLC has not published prices with us; call (530) 272-3439 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.
Is Palmer Enterprises Truck & Auto Repair LLC a CARB-credentialed tester?
Palmer Enterprises Truck & Auto Repair LLC 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 near Grass Valley
-
Cody's Clean Truck Check
- Mobile testing
- OBD test
- Motorhomes
-
North State Mobile Solutions
- Mobile testing
- OBD test
- Motorhomes
-
NorthState Mobile Smoke Testing
- Mobile testing
- OBD test
- Motorhomes
-
Quentin Turek
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
JTS truck and equipment repair inc
- Mobile testing
- OBD test
- Motorhomes
-
Williams Heavy Equipment
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Source: CARB's public Clean Truck Check tester list, last checked . Listing on CARB's list is optional for testers, so some credentialed testers are not shown. Services, hours and prices change; please confirm with the tester before you go. Something wrong? Send a correction.