Is FET triggered by adding snowplow equipment to a used, previously taxable chassis?

If we install a new, taxable body on a used chassis that was taxable when it was new, does the addition of that body “further manufacture” the chassis, so that IRC Section 4051 FET is triggered on the chassis? Does it...

We want to add a piece of equipment (not a body) to a used truck chassis. The used chassis is older than six months and was taxable under Internal Revenue Code (IRC) Section 4051 Federal Excise Tax (FET) when new. The...

If a vehicle is unable to maintain highway speeds, can it be treated as a so-called “off-highway vehicle” that is not subject to Internal Revenue Code Section 4051 Federal Excise Tax?