I am not sure if this is going on everywhere but the Florida IAEI is getting serious about looking for valid NRTL listing marks on all solar PV equipment. A lot of European equipment comes in with nothing but a CE mark and that is not a NRTL.
theres a county in Maryland that requires ALL commercial PV installs be inspected by a NRTL and signed off on. The AHJ only takes responsibility for the main feed after that is the NRTL