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Auxiliary Power Units (APU) Weight Exemption Guide

Today, we’re publishing a guest post from our friends over at Track Your Truck. If you’re shipping freight state-to-state, it’s important to recognize weight limits, especially with the weight additions of APUs. Take a look at their convenient guide below for more info.


Auxiliary power units (regularly referred to as APUs) remove the need to run truck engines on idle while parked and are commonly used by truck drivers to monitor their fuel use. One drawback of these units is that they ordinarily weigh several hundred pounds, and could be problematic for drivers who carry near the maximum weight limits.

With the president’s latest expansion of the MAP-21 bill dealing with state-by-state APU regulations, this may be confusing to drivers who frequently cross state lines. Below we’ve placed a convenient guide, created by Track Your Truck that informs drivers just how much APU weight is exempt in each state.


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