What EPA Laws Apply to the Exhaust System in my Truck?

The exhaust system in your truck has a lot of working parts.  Because of laws and regulations put in place by the Environmental Protection Agency, it’s illegal to remove some of those parts.

The DEF system is a part of those regulations.  DEF stands for Diesel Exhaust Fluid.  It’s a non-hazardous solution designed to break down emissions in the nitrogen and water, cleaning the exhaust as much as possible before it goes into the atmosphere.

Vehicle manufactures are required to make sure trucks cannot run without DEF, so when the fluid gets low, the dashboard will display several warnings (just as if the truck was running low on diesel).

If the DEF runs out, the truck is often designed to go no faster than 5 mph until the tank is refilled.

From the catalyst system to the DEF system, if they are factory-standard, they have to stay on.  Since an emissions test is required yearly in Colorado, it’s a good idea to keep a close eye on these systems.

We can help you with the latest EPA standards and laws. If you have any questions on them, give us a call!