grounding of mobile food trailer

[mwzapone]

Does a trailer used as a mobile food vender fed from the store that it is parked in front of have to have ground rods driven and attached to the trailer?

 

[bphgravity]

How does the trailer receive its power? (feeder and panel, single branch circuit, extension cord, ect)

 

[petersonra]

I think 525.31 might be on point.

 

[zbang]

Not that it's authoritive, but I've never been required to connect a ground rod to mobile cord-n-plug connected van or trailer. I do make sure that there is a good continuity from the van/trailer frame through to the connection plug, unless everything is corded inside. (If there's a panel, it gets checked for lack of N-G bond, too. I find them about half the time.)