BIS REGISTRATION FOR SOLAR INVERTERS All the manufacturers or importers should apply for license in the BIS it is mandatory to be test and certified before sell the solar inverters in India. Solar Inverters are covered under the Compulsory Registration Scheme under IS 16221 (Part 2)/IS 16169 as per BIS (Govt. of India). To ensure the quality the inverter it must be tested and certified under the BIS laboratory. Aleph India QMS with its expert team will help you to get your products tested and certified under the Bureau of Indian Standards as per government guidelines.