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CARB delaying retrofit deadline, sued over alleged DPF misleading

CARB-lead-featuredThe California Air Resources Board is delaying the particulate matter filter retrofit enforcement deadline to July 1 for truck owners who report by Jan. 31 they made a efforts toward trying to comply with the retrofit law.

CARB released Nov. 13 an advisory that said it would recognize truck owners’ “good faith” actions toward compliance by Jan. 1, the deadline for retrofitting a particulate matter filter. The state says it will delay enforcement through July 1 for those who’ve mad efforts and then reported the efforts by Jan. 31 to CARB’s Truck Regulations Upload and Compliance Reporting System.

CARB already announced this month it would be increasing its low-use mileage exemption from 1,000 miles a year to somewhere between 5,000 and 7,500 miles.

To qualify for the particulate matter filter enforcement delay, owners of any sized fleet must show they took one of the following steps:

*Have an agreement with an authorized installer of a particulate matter filter retrofit

*Signed a purchase contract and ordered a replacement truck equipped with a PM filter (2007 model year engine or newer)

*Were approved or denied financing for a retrofit filter or for a replacement truck equipped with a filter

CARB says it will also recognize “good faith” efforts of truck owners of small fleets — one to three trucks — who meet all requirements of the Proposition 1B Goods Movement Emissions Reduction Program. Click here to see more information in the advisory.

CARB sued over alleged DPF non-disclosure 

The newly formed Alliance for California Business has filed a lawsuit against CARB for allegedly not disclosing known defects associated with Diesel Particulate Filters, which are required for all trucks starting in 2014.

The complaint was filed in Glenn County and says that the mandated DPFs can cost up to $20,000 per truck.

Moreover, it says DPFs have caused fires and are “not designed for use on short distance travel routes and commonly malfunction as a result,” the suit says.

Truck owners can qualify for help with purchasing them, but no help is provided if damage is caused by the filters or if income is lost while the truck undergoes repair, the lawsuit says.

A case management conference is set for May 9.


My 2008 Tifin motor home in shop due to cracked DPF filter at 44k miles. Turbo replaced at 41k miles. Considering selling for fear motor is next.  Probably should have a cylinder scoped to check walls.  Only idling I do is to air up and then go.  

Drive at 62mph towing if I can get away with it.  Was told and have read that these filters should last 250k miles before cleaning.  I have an ISC 360 which is more a work truck engine than a motor home engine.

Did I miss any class action lawsuits on this???


I own 4 DPF filters and have had so many problems with them. Cleaire horizo, Johnson Matthey, Donaldson all have given me problems. When going back to manufacturer for warranty replacement on my filters their response was to blaim the malfunction on my trucks. Did dyno test on all my trucks and the result was they were running great. Such and expensive product to not do the job! Any one else having problems with filters? 


owners operator is gone to hard to buy  new  trucks  the load prices still   same  like 8 years ago.  we need more time  to do the change 

Bill Aboudi
Bill Aboudi

Attention Contractors! California Air Resources Board Schedules Public Workshops to Address Proposed Changes to Truck and Bus Regulation

The California Air Resources Board (ARB) has scheduled five public workshops to discuss the proposed amendments to the In-Use Heavy-Duty Diesel-Fueled Vehicles Regulation (Truck and Bus Regulation). 

The workshops will be held on the following dates at the following five locations (please see the Workshop Notice for addresses and times, see link below):

Diamond Bar - Tuesday, December 3, 2013 Sacramento - Wednesday, December 4, 2013 Redding - Thursday, December 5, 2013 San Diego - Tuesday, December 10, 2013 Fresno - Thursday, December 12, 2013

The Sacramento workshop will be webcast, and live video feed has been setup for alternative locations to telecast the Fresno workshop. You may find more information on the webcast for the Sacramento workshop at Cal/EPA Webcast.

To view the workshop notice Click Here -

To view the ARB workshop page for more information including workshop presentation Click Here -

In advance of the workshops, the Construction Industry Air Quality Coalition (CIAQC) prepared a letter to ARB with several recommendations to improve the current regulation.  CIAQC believes these recommendations will recognize the unique circumstances affecting the construction industry without threatening the goals and objectives of the air board's emission reduction efforts.  Click here to see a copy of the CIAQC Truck and Bus Regulation letter of recommendations.


CIAQC is a non-profit 501(c)(6) founded in 1989 by four southern California trade associations--Associated General Contractors of California, Building Industry Association of Southern California, Engineering Contractors Association and the Southern California Contractors Association.

These signatory contractor organizations, through the Southern California Industry Funds, created CIAQC to help their members understand and navigate the ever-increasing web of government environmental regulation under which they operate their businesses and build our communities, our infrastructure and the environmental systems that will enhance California’s future.

Today several organizations and individual construction firms throughout the state are active in CIAQC. Member associations now also include the Associated General Contractors America – San Diego Chapter, Inc., California Construction Trucking Association, United Contractors, and the California Rental Association.

CIAQC assists the construction industry and regulatory agencies in the development of environmental regulatory strategies that will balance the goals of a healthy environment and a healthy local economy with the least adverse impact on the construction industry.

To learn more about CIAQC go to


Bill Aboudi
Bill Aboudi

The truck prices have skyrocketed due to CARB careless regulation and the technology is unreliable (trucks keep breaking down).  When CARB or any other government agencies talk about grant money given out to truckers for upgrades think of government waste.  Grant programs should be an incentive for people to upgrade not a subsidy for hire priced trucks.  

concerned trucker
concerned trucker

ron perry  when will the trucking industry realize that the trucking industry is larger than just california and stop pushing the trucking industry.around also, why are foreign trucks  being allowed to run in california using low sulphur fuel, while we have to run ultra low fuel and pay a bigger price. instead of california and its politicians shutting down the trucking industry, why doesn't the trucking industry shut california down.

woodrow lucas
woodrow lucas

 @Bill Aboudi Bill

thank you for the update and summary. Looking forward to positive changes in the near future


woodrow Lucas