Bis Registration Solar Pv Modules BIS has implemented an online capability for updating the Critical Component List (CCL) of Solar PV Modules, hence facilitating compliance. This product requires BIS registration; its IS numbers are 16221 (Part 2): 2015 and 16169: 2014. They can update test reports without changing model numbers, resulting in quick processing within five days. This project supports sustainability and innovation in solar energy, allowing businesses to maintain standards while also supporting environmental efforts.