CARB Border Crackdown: How to Cross Into California Without Getting Turned Around
Updated February 2026: The California Air Resources Board has confirmed active enforcement at state borders, weigh stations, ports, and railyards. If you're driving a heavy-duty diesel truck into California, here's what you need to know to avoid getting turned...
EPA vs. CARB on Clean Truck Check: What It Means for Out-of-State Trucks Running California
If you’ve been watching the headlines this week, you’ve probably seen this: the U.S. EPA pushed back on part of California’s Clean Truck Check program, and CARB responded by doubling down. Here’s the only takeaway that matters when you’re the one trying to haul loads...
How to Complete a Drive Cycle for Clean Truck Check in Under 30 Minutes
How to Complete a Drive Cycle for Clean Truck Check in Under 30 Minutes Getting your truck “ready” for California’s Clean Truck Check (CTC) doesn’t have to take all day. A properly performed drive cycle can set your monitors in less than 30 minutes, saving you time,...
California’s Clean Truck Check Remains Active Amid Federal Regulatory Challenges
As discussions intensify around federal environmental regulations, particularly with potential policy shifts under a new administration, it’s essential to clarify the status of California’s various emissions programs. While some initiatives like the Advanced Clean...
California Pauses One Clean Truck Rule—But Don’t Skip the Clean Truck Check
California’s Clean Truck Rules: What You Need to Know About ACF, ACT, and Clean Truck Check California has been making headlines with its ambitious plans to clean up trucking emissions. You’ve probably heard about the recent decision to pause the Advanced Clean Fleets...
CARB OBD Testing: What you need to do now
CARB OBD Testing: What You Need to Know If you're a fleet manager or owner-operator in California, you've likely heard about the upcoming CARB On-Board Diagnostics (OBD) testing requirements. While these new regulations are crucial for maintaining emissions...
Is the DMV Holding Your Stickers? Here’s What You Need to Do Now
If you’re a fleet manager, truck or motorhome owner in California, you might find yourself in a situation where the DMV is holding your vehicle registration stickers. This can happen when your trucks are flagged for non-compliance with CARB regulations. If you’ve...
Navigating California CARB Diesel Compliance with AIRLIMITS: A Guide for Fleet Managers
Navigating the complex world of CARB (California Air Resources Board) diesel compliance can be daunting for fleet managers. AIRLIMITS is here to simplify this process with our comprehensive services designed to ensure that your fleet meets all regulatory...
AIRLIMITS Powers Up in the Energy Capital: Launching HD IM Testing for CARB in Houston
In a dynamic move towards supporting cleaner skies and a commitment to environmental excellence, AIRLIMITS proudly announces the extension of its services to the thriving city of Houston, Texas. Introducing Heavy-Duty Inspection and Maintenance (HD IM) testing and...
California Air Resources Board (CARB) CCDET IV Certified Opacity Testing Vendor for Commercial HarborCraft (CHC) – Air Limits
Reliable opacity testing services for your Commercial Harbor Craft (CHC) Airlimits is accredited as a California Air Resources Board (CARB) CCDET IV Certified Opacity Testing Vendor, offering top-notch services tailored specifically for CHC operators. Understanding...









