Hot Sheet
A Publication of the Colorado Motor Carriers Association
September 21, 2021

EPA Desk Statement Regarding Failed DEF Sensors


"EPA and the California Air Resources Board (CARB) have been working with the manufacturers of diesel vehicles and engines to address an issue related to the ongoing shortage of computer chips and the impact that has had on the availability of certain replacement parts. One part in particular, a sensor that monitors the quality of diesel emissions fluid (DEF), has been of concern because the failure of the part can lead to the vehicle being unable to operate. The Engine Manufacturers Association (EMA) on behalf of its member companies has proposed an industry wide approach that would provide a software solution for vehicles with failed parts to enable them to operate temporarily while the industry works to produce more replacement parts and that, long term, would provide replacement parts through a recall program. EPA and CARB have reviewed the proposed approach and believe it is appropriate for the companies to implement the proposed solution going forward as quickly as possible.


"The manufacturers must still develop new software code and test it to ensure the software can be installed on vehicles in the field. The companies expect that they will be able to begin fixing some vehicles with failed sensors as soon as this week. The companies will also make available a similar software update for vehicles whose sensors have not failed but are among a group of vehicles where such a failure could be expected to occur to prevent a sensor failure from disabling the vehicle. This updated software is likewise expected to be available to service centers in the coming weeks."


Communications Team
Office of Transportation and Air Quality
U.S. Environmental Protection Agency


Glen Kedzie, Vice President Energy & Environmental Affairs Counsel with the American Trucking Association released the above EPA desk Statement, along with the following:

            "The process above has received full approval by EPA and CARB. Delays in rollout, at this point, are those of the manufacturers working to ensure QA/QC and not to cause any unintended consequences. 


Recognize that over 1 million engines, representing more than 40 Engine families (since 2016) are involved. Those engine families each have some unique strategies in their calibration that must be considered. The software for each family must be developed and vetted. Deployment is imminent if it hasn’t occurred already.   


This will be a “two-step” process. Trucks will need to return to a service center when sensors are available. The good news is that return visit will not be necessitated by a truck being out-of-service due to a bad UQS. It will be because a truck is receiving other service or is available for this specific service."

3rd Quarter 2021 IFTA Tax Return Newsletter


Renewal Information:


The Department of Revenue issues 2022 IFTA Licenses and Decals starting in December 2021. There is a two month grace period to display IFTA credentials, this means if your IFTA and IRP accounts are in good standing and you do not receive your IFTA credentials in December, you have until February 28th, 2022 to obtain and display the 2022 decals on your vehicle.


To prevent delays in receiving your 2022 license, verify that we have your correct mailing address.  View More Info.

Safety Group Training
September 22, 2021
at CMCA, 4060 Elati St., Denver
Trucking Ergonomics: Guidelines to Prevent Strain Injuries for Drivers
Slip, Trip and Fall Prevention (60 min.)
Both courses are approved for Pinnacol Safety Group Credits.
Sponsored by:


2021 Top Industry Issues Survey 


Attention Industry Stakeholders,


Once again we are asking for your help in generating responses to this survey from all industry stakeholders – motor carriers, truck drivers, industry suppliers, law enforcement, government, and of course, trucking association staff.


So please complete the survey and have everyone on your staff do so as well.  Then please encourage your employees/drivers/professional network to do the survey as well. 


The survey will remain open through Friday, October 15, 2021View More Info
Unless otherwise noted, these classes and events will take place in-person pending any changes in COVID regulations.
September 23 - DOT Safety & Compliance Essentials (8am-4:30pm)
September 30 - Designated Employer Representative Seminar (8am-4:30pm)
October 7, 2021 - Safety Council Meeting (12:30pm-1:30pm)
October 16, 2021 - Brake Certification (9am-Noon)
Know Before You Go...
  • TRAVEL ALERT | US 550 Red Mt. Pass
    Utility work, including helicopter operations, will require lengthy morning and afternoon closures of Red Mt. Pass. Work takes place weekdays, from Sept. 13 to 24 at #US550 #RedMountainPass between #Silverton and #Ouray. Details about the utility project can be found HERE. 
  • Central 70 Traffic Impacts: 
    • York Street will be closed from 47th to 48th avenues starting Sept. 13 through mid-November.
    • Steele Street above I-70 will be closed 8 p.m., Sept. 17 – 5 a.m., Sept. 20
  • The emergency truck ramp on West Vail Pass located near Mile Point 182 will close Monday, Aug. 9, and remain closed for about three months while the ramp is reconstructed.  The next closest emergency ramp on Vail Pass is located at Mile Point 185.5.  This ramp reconstruction is being done as part of the I-70 West Vail Pass Auxiliary Lanes Project.

    Hot Brake Cooling Vail Pass:  The two locations we are pointing drivers to use are the MP 190 interchange ramps or the wide shoulder at MP 184 as a place where they can cool their brakes before proceeding WB.  We have construction signs along I-70 for drivers. Attached is a PDF with our plan for the brake cool down areas.  
    For more information about this project, click here or send an email to or call 970-688-8233.
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