(1) All factory-built units manufactured or delivered prior to sale or sold or offered for sale in this state must bear a data plate giving the model, serial number, date of completion, and design load maximums: i.e., wind, snow, floor live load, and seismic design.

(2) The data plate must be permanently affixed either to the inside or the outside of the electrical distribution panel door or other location easily visible without the use of tools or special knowledge to access the data plate.