Knowledge Center for the Off-Road Diesel Vehicle Regulation

Applicability

• Applicability Flow Chart: Determine if your vehicle is covered under the Off-Road Diesel Vehicle Regulation.
• General Applicability: Determine if your vehicles are exempt due to the personal use, snow removal, job corps, or other exemptions.
• Agricultural Equipment: Equipment used in agricultural operations may have special exemptions in the regulation.
• Electric Ground Support Equipment (GSE) at Airports: Electric GSE at airports may be reported for partial credit towards the emissions requirements.
• Portable Equipment: Self-propelled off-road diesel vehicles that may require registration as portable equipment.
• Rail and Track Equipment: How to determine if your rail or track vehicle is covered by the regulation.
• Two-Engine Vehicles: How to determine which regulation applies to both engines of two-engine vehicles, including those with an on-road engine.
• Workover Rigs: How to determine if your rig is considered a workover rig in the off-road regulation.
• Yard Trucks: How to determine which regulation applies to your yard truck.

Definitions

• Emission Factors: Explanation of emission factors, fleet averages, and sample calculations.
• Fleet Portions: Explanation of fleet portions and how they report and comply.
• Fleet Size - Private Fleets: How to determine fleet size for privately owned fleets.
• Fleet Size - Public Fleets: How to determine fleet size for federal, state and local agencies.
• Horsepower: Explanation of maximum horsepower and how it can be determined.
• Model Year: Explanation of engine model year and how it can be determined.

Requirements and Compliance Questions

• Adding Vehicles: Requirements and restrictions on adding vehicles to a fleet.
• Annual Reporting: Explanation of annual reporting requirements for all fleets.
• Captive Attainment Area Fleets: Explanation of compliance and reporting for fleets in the areas of the state with the cleanest air.
• Changing Fleet Size: Explanation of the compliance requirements and dates for fleets that change size (e.g., small to medium/large or large to small/medium, etc.)
• Compliance Overview: Overview of off-road regulation requirements, including those in effect now and future requirements.
• Emergency Use: Emergency use vehicles may be exempt from some aspects of the off-road regulation.
• Idling Policy Guidance: Information on what fleets should include in their written idling policies.
• Labeling Vehicles: Requirements for EIN labeling on vehicles, including label specifications.
• Low-use Vehicles: Explanation of the low-use provisions, and how fleets may utilize these provisions to reduce compliance requirements.
• Manufacturer Delays: What to do if equipment needed for compliance is delayed.
• New Fleets: Requirements for fleets newly formed in-state or a fleet that enters California.
• Potential Fines: Description of potential fines for noncompliance and where fine money goes.
• Rental/Leased Equipment: How to incorporate rental/leased equipment into the off-road regulation.
• ROAR:  Requirements for submitting Responsible Official Affirmations of Reporting (ROARs).
• Vehicles Used for Parts: Vehicles used for parts may be exempt from some regulatory requirements.

Diesel Emission Control Systems (DECS)/Retrofit Devices

• Conditionally Verified DECS: Use of conditionally verified Diesel Emission Control Strategies for compliance with the off-road regulation.
• Credit for VDECS:  Explanation of the credit available in the regulation for installing verified retrofits.
• DECS/Retrofit Devices: Explanation of what a DECS/Retrofit Device is and how they work.
• Excess PM VDECS Credit Provisions:  How to install extra or early VDECS under either the off-road or truck and bus regulation to generate excess credits for the other regulation.
• Interim Visibility Policy: Explanation of how the interim visibility policy interacts with the off-road requirements
• Using Unverified Exhaust Retrofits: What to do if you are using an unverified exhaust retrofit.
• VDECS Removal: What happens if a VDECS fails and/or is removed.

On-road Engines and Off-road Vehicles

• Repowers Using On-road Engines: On-road engines may be used in off-road vehicles to lower emissions.
• Enforcement Advisory 381: Using Certified On-road Engines in On-road Registered Vehicles.

Loan Guarantee/Incentive Programs

• Loan Programs: ARB PLACE Program for off-road vehicles
• Incentive Funding: Explanation of how compliance credits are awarded for vehicles/engines/retrofits funded through incentive programs (Moyer, Showcase, SEP and other funds).

The User Guides for DOORS are currently being updated. Once updates on a specific user guide is completed, they will be posted here. Please check back regularly for the user guide you're searching for.

Definitions/Explanations

• Air District Codes List
• Engine Family Names

Initial Reporting

• Required Information (to Complete Initial Reporting)
• Online Forms for Initial Reporting
• How to Report with Missing Information
• How to Report Fleet Portions or Multiple Fleets
• How to Report Vehicles with Two (or More) Engines
• Reporting with Repeating Serial Numbers
• View EINs

Update/Edits

• Updating Fleet Information
• Retired or Sold Vehicles
• Reassign Vehicles 
• Low-Use Vehicles 

Compliance

User guides for this category are coming soon.

Request for a Change in DOORS Information

• Contact Information: Use this form to request changes to your fleet's contact information, including a request for a new username/password.
• Transferring a Fleet or Fleet Portion: Use this form to transfer ownership of a fleet or fleet portion in DOORS (i.e., after purchase/acquisition of a fleet or fleet portion).
• Adding a Vehicle with a Blocked EIN: Use this form to request to add a vehicle with an existing EIN to your fleet when the previous owner has not sold the vehicle in DOORS.
• Vehicle/Engine Information Changes for a Previously Reported Vehicle: Use this form to request changes to vehicle or engine information originally reported by a previous owner (i.e., the vehicle was purchased with an existing EIN, but some of the vehicle or engine information is incorrect).

Annual Reporting Forms

• Responsible Official Affirmation of Reporting (ROAR): Required for large fleets beginning March 1, 2012.
• Hour Meter Reading Log for Designated Low-Use Vehicles Operated Inside and Outside of California: Required for large fleets beginning March 1, 2012 for vehicles designated as low-use that operate both inside and outside of California.
• Hour Meter Reading Log for Vehicles Designated as Agricultural: Required for large fleets beginning March 1, 2012 for vehicles designated as agricultural (used for agricultural purposes 51-99% of the time).