Name: CTC Mobile Services
Address: City of Industry, CA, US
Telephone: (626) 503-5140
Price range: $79-$129

Question 1

What is a Clean Truck Check (CTC)?

Accepted Answer

A Clean Truck Check is California's emissions testing program for heavy-duty diesel vehicles. It's mandated by CARB (California Air Resources Board) to ensure trucks meet emissions standards. The test uses OBD (On-Board Diagnostics) to check your vehicle's emissions control systems.

Question 2

How long does the CTC test take?

Accepted Answer

The OBD scan itself takes approximately 2 minutes per vehicle. For a typical fleet of 5-10 trucks, expect the entire process to take 30-45 minutes from arrival to completion.

Question 3

What happens during the test?

Accepted Answer

Our technician connects an OBD reader to your vehicle's diagnostic port (same port mechanics use for diagnostics). The device scans your emissions control system, checks for fault codes, and verifies your vehicle meets California standards. Results are uploaded to CARB immediately.

Question 4

What happens if my vehicle fails?

Accepted Answer

If a vehicle fails, you'll receive a detailed diagnostic report showing exactly what triggered the failure. You have 90 days to make repairs. Once repaired, we return for a retest at a discounted rate ($49 single, $39 fleet). We can recommend repair shops in your area if needed.

Question 5

Do you test older vehicles (pre-2013)?

Accepted Answer

We specialize in OBD testing for 2013+ diesel vehicles and 2018+ alternative fuel vehicles. Older vehicles requiring smoke opacity testing need specialized equipment. We can refer you to trusted partners for opacity testing.

Question 6

How much does CTC testing cost?

Accepted Answer

Our pricing: Single vehicle $129, fleets of 2-5 trucks $99/vehicle, fleets of 6+ trucks $79/vehicle. No travel fees for locations in our service area. The price includes everything - testing, CARB documentation, and digital records.

Question 7

Are there any hidden fees or travel charges?

Accepted Answer

No hidden fees whatsoever. We don't charge for travel within our service area (San Gabriel Valley and 20-mile radius). The price quoted is the price you pay.

Question 8

When is payment due?

Accepted Answer

Payment is due at the time of service. We accept all major credit cards, cash, and business checks. For large fleets (20+ vehicles), we can arrange invoicing with NET 30 terms for established businesses.

Question 9

Do you offer discounts for repeat customers?

Accepted Answer

Yes! We offer loyalty discounts for annual testing and multi-location accounts. Contact us to discuss a custom rate for your recurring testing needs.

Question 10

What if my vehicle fails - do I pay full price for retest?

Accepted Answer

No. Retests are discounted: $49 for single vehicles, $39 for small fleet vehicles, $29 for large fleet vehicles. The retest must be within 90 days of the original test.

Question 11

What are your service hours?

Accepted Answer

We offer flexible scheduling: Early mornings (6AM-8AM) before your trucks roll out, evenings (5PM-9PM) after operations wind down, and all day Saturday and Sunday. We work around YOUR schedule.

Question 12

How do I schedule an appointment?

Accepted Answer

Call or text us at (626) 503-5140. We typically book 2-5 days in advance, but same-week appointments are often available. For urgent needs, call us - we do our best to accommodate.

Question 13

Can you test multiple locations in one trip?

Accepted Answer

Absolutely! If you have trucks at multiple yards in our service area, we can schedule a multi-stop visit. This is common for companies with vehicles at different warehouses or job sites.

Question 14

What if I need to reschedule?

Accepted Answer

Life happens. Just give us at least 24 hours notice and we'll reschedule at no charge. Same-day cancellations may be subject to a $50 trip fee.

Question 15

Do you offer emergency or same-day testing?

Accepted Answer

We try to accommodate urgent requests when possible. Call us - if we have an opening, we'll fit you in. Emergency same-day service may have a $50 rush fee depending on circumstances.

Question 16

Which vehicles require CTC testing?

Accepted Answer

All heavy-duty vehicles with a Gross Vehicle Weight Rating (GVWR) of 14,001 lbs or more operating in California require testing. This includes semi-trucks, buses, RVs over 14,001 GVWR, and heavy-duty work trucks.

Question 17

Do I need to test my Class 6 or Class 7 truck?

Accepted Answer

If the GVWR is 14,001 lbs or more, yes. Check your door jamb sticker for the GVWR. Class 6 (19,501-26,000 lbs) and Class 7 (26,001-33,000 lbs) typically require testing.

Question 18

What about refrigerated trucks (reefers)?

Accepted Answer

Yes, refrigerated trucks with GVWR over 14,001 lbs require testing. We test the truck's main engine - the reefer unit is separate. However, some reefer units may also need testing depending on their power source.

Question 19

Do buses and shuttles need CTC testing?

Accepted Answer

Yes, if they have a GVWR over 14,001 lbs. This includes school buses, transit buses, tour buses, and shuttle vehicles. The model year and fuel type determine exactly which testing applies.

Question 20

What about construction equipment?

Accepted Answer

Off-road construction equipment has different regulations (In-Use Off-Road Diesel regulation). We focus on on-road heavy-duty vehicles. Contact CARB for off-road equipment requirements.

Question 21

What documentation do I receive after testing?

Accepted Answer

You receive: 1) Immediate CARB upload confirmation, 2) Digital test results for your records, 3) Pass/fail certificate for each vehicle. Results are stored in CARB's database and linked to your vehicle's VIN.

Question 22

When is my fleet required to be tested?

Accepted Answer

Testing deadlines vary by fleet size and vehicle type. Most fleets have annual testing requirements. Check CARB's website or call us - we can help you understand your specific compliance timeline.

Question 23

What penalties exist for non-compliance?

Accepted Answer

CARB can issue penalties ranging from $1,000 to $10,000+ per vehicle for non-compliance. Additionally, non-compliant vehicles may be prohibited from operating in California. It's far cheaper to stay compliant.

Question 24

Can I operate while waiting for a retest after failure?

Accepted Answer

Generally, you have 90 days to repair and retest. During this period, operation may continue in most cases, but you should check current CARB guidelines or consult with us. Excessive failures may have restrictions.

Question 25

How do I prove my vehicle is compliant?

Accepted Answer

CARB maintains a database of all compliant vehicles. Enforcement officers can look up your VIN. We also provide digital records you can keep on file. There's no physical sticker required.

Question 26

What areas do you serve?

Accepted Answer

We serve the entire San Gabriel Valley and surrounding areas within approximately 20 miles of City of Industry. This includes: City of Industry, West Covina, Walnut, Diamond Bar, Pomona, Rowland Heights, La Puente, Irwindale, Azusa, Baldwin Park, Covina, Glendora, and more.

Question 27

Do you service the Inland Empire?

Accepted Answer

We cover the western Inland Empire including Pomona, Chino, and Ontario. For locations further east (Riverside, San Bernardino), please call to discuss - we may be able to accommodate with advance scheduling.

Question 28

What about Los Angeles proper?

Accepted Answer

We can service eastern LA County (El Monte, Montebello, Pico Rivera area). For central/west LA, contact us - depending on fleet size, we may be able to make arrangements.

Question 29

Can you test at my customer's location?

Accepted Answer

Yes! We can test at any location where the vehicles are parked - your yard, a customer's warehouse, a job site, or any other accessible location within our service area.

Question 30

What if I'm outside your service area?

Accepted Answer

Contact us anyway. For larger fleets (10+ vehicles), we may be able to travel further. We can also refer you to trusted partners in other regions of California.

Frequently Asked Questions

The Testing Process

Related Pages

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