UL2703 standards is solar mounting system of UL / cUL standards for safety.

It including UL2703-mounting system.mounting devices,clamping/retention devices,and ground lugs for use with plat-plate photovoltaic modules and panels

ULC/ORD C1703-Flat-Plate for photovoltaic modules and panels.

Fire rating includes Class A, Class B, Class C; Class A certification is the highest level, Class A UL2703 allows export to USA. Canada for solar power system.