[FrankJ]

Originally Posted by Chris is me

What is in your trailer isn't illegal at all

I agree, but most of the LRIs I have talked wishes that it was so. The temptation to go grab the fabricated part to repair your broken robot can be pretty high in the heat of the moment. As Chris pointed out all your fabricated parts must be brought in at load in. Everything else stays in the trailer. Considering the creative interpretations of the bumper rules, i can where people will creatively interpret this rule as well.