Retrofits for Older Diesel Engines In Oregon

2023 UPDATE: VIN stops could impact your ability to operate older diesel trucks in the Portland tri-county area.

Own an older diesel truck in the Portland area?

If you own a diesel truck in the Portland area, there’s a new policy that you need to know about. The Oregon Department of Environmental Quality (DEQ) has recently announced that some older trucks registered in Washington, Multnomah, and Clackamas counties will be subject to a VIN stop if they are not retrofitted.

Make a plan

This policy is part of the DEQ’s efforts to improve air quality in the Portland area, where diesel trucks are a significant source of pollution. The VIN stop means that the DMV will not renew your vehicle registration until you can provide proof that your truck has been retrofitted with an approved emissions control device.

It’s important to note that this policy only applies to medium-duty vehicles over 14,000 pounds and heavy-duty trucks with a gross vehicle weight rating (GVWR) of 26,000 pounds or more, and that have engines manufactured in 1996 or earlier. If your truck falls into this category, and you haven’t already retrofitted it, you’ll need to do so before your registration renewal comes up.

Other vehicles may be affected by more deadlines that are coming soon. On January 1st, 2025, medium-duty trucks with engines from 2009 or earlier, and heavy-duty trucks with engines from 2006 or earlier, will also be subject to a VIN stop if not retrofitted and approved by DEQ.

Make a plan to address this requirement soon to avoid frustration in the future!

Good News! There’s help.

The good news is that there are a variety of retrofit options available that may be eligible for state or federal grant funding, which can offset or even cover the cost of retrofitting.

See our other resources for grant info here:

• Oregon Grants page

• DES Oregon Grants blog post

To encourage these emissions reductions and support retrofitting, the City of Oregon is offering free retrofit assessment vouchers for older diesel vehicles (the model year 1996 or older) via the Portland area CAC program.

Truck owners and fleets can apply to the City of Portland to get a free retrofit voucher to have DES perform a pre-assessment of the diesel truck vehicle (a $350 value). By taking advantage of these free assessments, you can get a head start on the retrofitting process.

For more info on how to apply for the free voucher from the CAC program visit: https://bit.ly/3m7z3i0

DES is your source for retrofit info & installations.

DES is an industry leader in emissions control technology, and our experts provide assessments to help truck owners and fleets determine the most effective retrofit solution for their specific vehicles. DES is an approved retrofit installer and vendor in OR.

The assessment process will include an evaluation of the vehicle’s emission control systems, a review of its operating conditions and usage patterns, and a discussion of the available retrofit options. DES will then provide a detailed report with recommendations for the most effective and affordable retrofit solution. Truck owners and fleets in the Portland area can take advantage of expert guidance and support in navigating the process of retrofitting. Note: you are under no obligation to purchase any products or services from DES.

If you’re unsure whether your truck requires a retrofit, or you need help finding a retrofit solution, the DEQ offers resources and assistance to help you navigate the process. You can contact DEQ at (503) 229-5066 or visit their website for more information.

Don’t hesitate to take advantage of this opportunity to reduce emissions and contribute to cleaner air in the Portland area.