--- title: Missed Your CARB Clean Truck Check Deadline? Here’s What You Need to Do description: Missed your CARB test? Email hdim@arb.ca.gov with your VIN to request an extension. Act fast to avoid fines and stay compliant! image: https://sacvalleydieseltesting.com/hubfs/Screenshot%202025-01-31%20at%208.35.03%20PM.png --- [Skip to content](https://sacvalleydieseltesting.com/blog/missed-your-carb-clean-truck-check-deadline-heres-what-you-need-to-do#main-content) [![Screenshot 2025-02-18 at 10.34.07 PM](https://sacvalleydieseltesting.com/hs-fs/hubfs/Screenshot%202025-02-18%20at%2010.34.07%20PM.png?width=244&height=121&name=Screenshot%202025-02-18%20at%2010.34.07%20PM.png)](https://sacvalleydieseltesting.com) - [Home](https://sacvalleydieseltesting.com) - [About](https://sacvalleydieseltesting.com/carb-info) - [Blog](https://sacvalleydieseltesting.com/blog) - [FAQ](https://ww2.arb.ca.gov/our-work/programs/inspection-and-maintenance-program/hd-im-fact-sheets) - [Diesel Motorhomes](https://sacvalleydieseltesting.com/motorhome-carb-testing) Open main navigation Close main navigation - [Home](https://sacvalleydieseltesting.com) - [About](https://sacvalleydieseltesting.com/carb-info) - [Blog](https://sacvalleydieseltesting.com/blog) - [FAQ](https://ww2.arb.ca.gov/our-work/programs/inspection-and-maintenance-program/hd-im-fact-sheets) - [Diesel Motorhomes](https://sacvalleydieseltesting.com/motorhome-carb-testing) - [530-650-6646](tel:5306506646) [530-650-6646](tel:5306506646) [All posts](https://sacvalleydieseltesting.com/blog/all) February 1, 2025 # Missed Your CARB Clean Truck Check Deadline? Here’s What You Need to Do By  Nathan Ament  ·  2 minute read ## ![Screenshot 2025-01-31 at 8.35.03 PM](https://sacvalleydieseltesting.com/hs-fs/hubfs/Screenshot%202025-01-31%20at%208.35.03%20PM.png?width=1374&height=826&name=Screenshot%202025-01-31%20at%208.35.03%20PM.png) If you missed your **CARB Clean Truck Check** deadline, you’re not alone—but ignoring it won’t make it go away. **Failure to complete required emissions testing on time can lead to fines, registration holds, and even being blocked from operating in California.** Here’s what happens and what you should do next. ### What Happens If You Miss the Deadline? 🚨 **Late Fees & Penalties** – CARB imposes fines for missed testing deadlines. The longer you wait, the more the penalties can add up. 🚨 **DMV Registration Holds** – If your truck isn’t compliant, **you may not be able to register your vehicle** when the time comes. 🚨 **Potential “Do Not Operate” Orders** – CARB has the authority to restrict non-compliant vehicles from operating in California. ### What Should You Do Now? ✅ **Get Tested Immediately** – Even if you’re late, getting tested as soon as possible can help minimize penalties and avoid further enforcement actions. ✅ **Check Your CARB Portal** – Log in to the **Clean Truck Check database** to see your compliance status, outstanding tests, and any potential fines. ✅ **Fix Any Issues** – If your vehicle fails, you’ll need to make repairs and retest quickly. **Testing early in the future (up to 90 days before the deadline) helps avoid these last-minute issues.** ✅ **Don’t Ignore It!** – If CARB flags your truck as non-compliant, enforcement actions will only get more severe over time.   If you've missed your **CARB Clean Truck Check** deadline, it's important to act quickly to avoid further penalties. One step you can take is to **reach out to CARB and request an extension**. While extensions aren’t guaranteed, contacting them as soon as possible may help you avoid additional fines or enforcement actions. Be sure to include your **vehicle’s VIN number** in your request to ensure they can properly review your case. You can contact CARB at **hdim@arb.ca.gov** Don't delay—getting in touch now could help you stay on the road legally.  you've missed your **CARB Clean Truck Check** deadline, it's important to act quickly to avoid further penalties. One step you can take is to **reach out to CARB and request an extension**. While extensions aren’t guaranteed, contacting them as soon as possible may help you avoid additional fines or enforcement actions. Be sure to include your **vehicle’s VIN number** in your request to ensure they can properly review your case. You can contact CARB at **hdim@arb.ca.gov**or call **(866) 634-3735**  If you've missed your **CARB Clean Truck Check** deadline, it's important to act quickly to avoid further penalties. One step you can take is to **reach out to CARB and request an extension**. While extensions aren’t guaranteed, contacting them as soon as possible may help you avoid additional fines or enforcement actions. Be sure to include your **vehicle’s VIN number** in your request to ensure they can properly review your case. You can contact CARB at **hdim@arb.ca.gov**or call **(866) 634-3735** ### Get Back on Track Today If you missed your deadline, don’t panic—but don’t wait any longer. I’m a **CARB-certified mobile tester** and can help you **get back into compliance quickly.** Schedule your test today to avoid further penalties and keep your truck on the road!   [WWW.SACVALLEYDIESELTESTING.COM](https://sacvalleydieseltesting.com/) ![Screenshot 2024-09-02 at 9.04.58 AM-1](https://sacvalleydieseltesting.com/hs-fs/hubfs/Screenshot%202024-09-02%20at%209.04.58%20AM-1.png?width=557&height=286&name=Screenshot%202024-09-02%20at%209.04.58%20AM-1.png)     Share [facebook-f icon](http://www.facebook.com/share.php?u=https://sacvalleydieseltesting.com/blog/missed-your-carb-clean-truck-check-deadline-heres-what-you-need-to-do) [linkedin-in icon](http://www.linkedin.com/shareArticle?mini=true&url=https://sacvalleydieseltesting.com/blog/missed-your-carb-clean-truck-check-deadline-heres-what-you-need-to-do) [twitter icon](https://twitter.com/intent/tweet?url=https://sacvalleydieseltesting.com/blog/missed-your-carb-clean-truck-check-deadline-heres-what-you-need-to-do) [pinterest-p icon](http://pinterest.com/pin/create/link/?url=https://sacvalleydieseltesting.com/blog/missed-your-carb-clean-truck-check-deadline-heres-what-you-need-to-do) [envelope icon](mailto:?body=https://sacvalleydieseltesting.com/blog/missed-your-carb-clean-truck-check-deadline-heres-what-you-need-to-do) [![](https://sacvalleydieseltesting.com/hs-fs/hubfs/Screenshot%202024-09-02%20at%209.04.58%20AM-1.png?width=444&height=228&name=Screenshot%202024-09-02%20at%209.04.58%20AM-1.png)](https://sacvalleydieseltesting.com/)   Learn more about the California Air Resources Board HD/IM Diesel Emissions Program that goes into effect this year by clicking on the links under Resources.       [facebook-f icon](https://www.facebook.com/profile.php?id=61570893532975) [linkedin-in icon](https://www.linkedin.com/company/106506390/admin/dashboard/) [youtube icon](https://youtu.be/mwR0TwFdHPU?si=uVxVAgoWq2lVix7B) instagram icon ## **Resources** [Clean Truck Check Website](https://ww2.arb.ca.gov/our-work/programs/CTC) [Truck Stop Videos - Including Spanish Versions](https://www.youtube.com/@carbtruckstop5804/videos) [CARB Motorhome FACT SHEET](https://ww2.arb.ca.gov/resources/fact-sheets/clean-truck-check-motorhome-fact-sheet) [The NEW Semi-Annual Testing Requirements](https://ww2.arb.ca.gov/clean-truck-check-requirements-vehicles-subject-semi-annual-compliance) [CARB info VIDEO](https://ww2.arb.ca.gov/our-work/programs/truckstop-resources/truckstop/training-course-clean-truck-check-hd-im-program) [Testing Twice A Year - Calendar](https://ww2.arb.ca.gov/clean-truck-check-requirements-vehicles-subject-semi-annual-compliance) [Vehicle Inspection System (CTC-VIS) Portal](https://cleantruckcheck.arb.ca.gov) [Database Reporting Instructions CTC-VIS](https://youtu.be/Zd1YaEBM-hE?si=KXFPV6TxuKQ6yM21) [DPF Maintenance](https://youtu.be/NB_dZTnhYTs?si=gC8S-TU8bzEdbekw) [Information About Selling a Vehicle](https://ww2.arb.ca.gov/resources/fact-sheets/dealer-fact-sheet-clean-truck-check) [Information About Clearning Codes](https://ww2.arb.ca.gov/board-diagnostic-obd-readiness-criteria) [Acceptable Smoke Levels For Smoke Tests](https://ww2.arb.ca.gov/sites/default/files/inline-images/Opacity%20%25s.png) [Missing Engine Label Information](https://ww2.arb.ca.gov/resources/fact-sheets/clean-truck-check-what-do-when-ecl-missingillegible) [Our Site Data Privacy Policy\*](https://www.freeprivacypolicy.com/live/4839b8f5-5648-436e-9a7c-d6f08e41b09e)   ![CTC\_Testers\_hrz-white](https://sacvalleydieseltesting.com/hubfs/CTC_Testers_hrz-white.svg "CTC_Testers_hrz-white") Information about CARB and HD/IM Program is subject to change, for the most accurate and up-to-date information go to the California Air Resouces Board Website                                                                                                                                                                                                                    Copyright © 2026, Sac Valley Mobile Diesel Testing ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Nathan Ament", "url" : "https://sacvalleydieseltesting.com/blog/author/nathan-ament" }, "dateModified" : "2025-02-01T04:39:58.048Z", "datePublished" : "2025-02-01T04:39:13.000Z", "headline" : "Missed Your CARB Clean Truck Check Deadline? 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