Truck and Bus Regulation Reporting
On-Road Heavy-Duty Diesel Vehicles (In-Use) Regulation

This page last reviewed December 14, 2017

Who Needs to Report for 2018?
By reporting, owners can take advantage of flexibility options for heavy-duty diesel powered vehicles subject to the Truck and Bus regulation. The reporting period to meet the 2018 compliance requirements closes January 31, 2018. Those who opted-in to a mileage based extension for 2017 must report their end of year odometer readings and indicate whether they will continue to use the same option in 2018. Additionally, fleets may claim the options listed in the table below if the fleet meets the eligibility criteria for the 2018 compliance year.

The following is a list of available compliance options:

NOx Exempt Area Operation
Manufacturer Delay (Must email to opt in. See Online User Guide for details.)
Heavy Crane Phase-In Option
Low Mileage Work Truck Option w/ PM Filter (Only applies to vehicles with pre-1996 engines until replacement deadline)

Vehicle owners that have already reported should review their vehicle and owner information and update it if necessary. See the Online Reporting User Guide for details.

  • If you bought or sold vehicles from your fleet, installed filters, or upgraded engines on any of your vehicles you must report that information within 30 days of the change.

  • If you reported for a mileage based extension such as low-mileage work truck, agricultural vehicle, or the low-use exemption, you must report your vehicle's January 1 odometer reading no later than January 31 of each year.

  • Fleet owners wishing to continue using a compliance option from the prior year must re-select the compliance option for the 2018 compliance year. For example, a vehicle designated as using the 2017 Agricultural Vehicle Extension must select the 2018 Agricultural Vehicle Extension to retain the use of this flexibility option.
There is no initial opt-in for the Agricultural Vehicle Extension, Agricultural Specialty Vehicle Extension, or Log Truck Phase-in Option. Only replacement vehicles can be newly reported to use this option.

Final requirements January 1, 2018:
Low-Mileage Work Truck 100% PM filters
Small Fleet Third Truck PM filter
PM Filter Phase-in Option 100% PM filters, no credits except those approved for advanced technology

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