Clean Truck Check - Non-OBD Test Visual Inspection Worksheet
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Clean Truck Check Emissions Control Equipment Inspection Worksheet
Test results are no longer emailed and there is no longer a required hard copy form to be filled out and submitted.
- This worksheet is an optional tool to use as you perform the emissions test.
- Non-OBD test must be submitted through a CTC-VIS Tester account at https://cleantruckcheck.arb.ca.gov/
- For a video step by step guide of how to submit a NON-OBD emissions test please see:
- How to: Submit a NON-OBD Test
Emissions control components must use one of the following designations to be reported appropriately in your CTC-VIS submission.
- Pass
- Needs Repair
- Not Applicable
For components NOT listed on the ECL, check the Not Applicable box.
Any vehicle with a missing, modified, defective, or disconnected emissions control component or system will fail the Vehicle Emissions Control Equipment Inspection and the Clean Truck Compliance Test. For more information, see: What to do when an ECL is Missing/Illegible.
Date of Inspection:
Vehicle Information
Vehicle Identification # (VIN): | License Plate #: |
Registered Vehicle Owner: | Contact Name**: |
Contact Email: | Contact Telephone #: |
*Name of individual, company, or entity that owns the vehicle. **Contact person, if different from the owner.
Emission Control Label (ECL) Information
ECL condition: | |
Engine Family Name (on ECL): | Engine Manufacturer: |
Engine model: | Engine year: |
Vehicle Emissions Control Systems Inspection
| Pass | Needs repair | Not applicable |
Exhaust Gas Recirculation (EGR) | ☐ | ☐ | ☐ |
Selective Catalytic Reduction System (SCR) | ☐ | ☐ | ☐ |
Diesel Oxidation Catalyst (DOC) / Three-Way/Oxidizing Catalyst (for alt. fuel) (TWC/OC) | ☐ | ☐ | ☐ |
Sensors and Switches (e.g., NOx/O2S) | ☐ | ☐ | ☐ |
Super/Turbo Charger and Charge Air Cooler (SC/TC, CAC) | ☐ | ☐ | ☐ |
Engine/Powertrain Control Module (ECM/PCM) | ☐ | ☐ | ☐ |
Diesel Particulate Filter (DPF, PTOX) | ☐ | ☐ | ☐ |
Retrofit Diesel Particulate Filter | ☐ | ☐ | ☐ |
VDECS Diesel Emission Control Strategy Family Name for Retrofit Diesel Particulate Filter: | |||
Information for any item that needs repair:
| |||
Credentialed Tester Information
Printed Name: | Tester ID: |
Additional Information for Visual Inspection Worksheet
Emission Control Label (ECL) | Clear and readable engine family name, engine manufacturer, engine model, and engine year. For all components listed on the ECL, an inspection must be conducted. |
ECL Missing | All heavy-duty vehicles need to have proof that the engine meets appropriate emissions standards by having the manufacturer ECL properly affixed on the engine and fully legible. If you are unable to obtain the ECL, you must request the manufacturer write you a letter stating the label is unavailable. Engine information must be provided on the manufacturer's letter. A copy of the letter must be kept in the cab of the vehicle in a place known to the driver. |
Exhaust Gas Recirculation (EGR) | Includes EGR valve, EGR cooler, controls |
Selective Catalytic Reduction System (SCR) | Includes SCR catalyst, Diesel Exhaust Fluid (DEF) Doser Injector, DEF Tank, DEF supply and return lines, DEF line heater relays, DEF pump (metering unit), DEF tank sending unit, DEF decomposition tube, monitoring system, warning lights |
Diesel Oxidation Catalyst (DOC), or for Alternative Fuel engines, a Three-Way/Oxidizing Catalyst (TWC/OC) | Includes diesel oxidizing catalyst OR a three-way oxidizing catalyst, monitoring systems, warning lights Diesel Engines: Diesel Oxidation Catalyst Alternative Fuel Engines: Three-way Oxidizing Catalyst |
Sensors and Switches | Includes oxygen sensors, NOx sensors, EGR, air fuel sensors, coolant temperature, air intake temperature, barometric pressure, intake manifold pressure etc. Diesel Engines: For example, PM sensors, dosing injector, DEF quality, DEF level etc. Alternative Fuel Engines: For example, gas flow sensor, fuel pressure sensors/gauges etc. |
Turbo Charger/Super Charger and Charge-Air Cooler (TC/SC) (CAC) | Includes turbo charger or super charger, charge air cooler, actuators, etc. |
Engine Control Module/Powertrain Control Module (ECM/PCM) | Includes computers, modules, wiring, controls, actuators, connectors, warning lights |
Diesel Particulate Filter (DPF) (PTOX) | Includes filter, regeneration system (including 7th injector), monitoring system, warning lights |
Retrofit DPF: Verified Diesel Emissions Control Strategy (VDECS) | Includes DPF criteria above (for vehicles originally equipped with a DPF) as well as inspection of intake and exhaust manifolds, air filter including flow indicator, crankcase controls, related hoses, connectors, brackets, and hardware; other emissions related components for a particular vehicle/engine as determined from the manufacturer's specifications, emission control label, certification data, or published vehicle parts manuals |