Bis Certification For Storage Units As stated in IS 17634:2022, storage units are required to have BIS certification. All manufacturers must ensure compliance of their storage units with quality and safety standards and also affix the BIS certification mark to them. The certification optimizes the robustness, safety, efficiency, and versatility of storage units by assuring that they meet industry standards. IS 17634: Storage Units Under IS 17634:2022, all storage units falling under this standard must be certified under the BIS certification scheme. Without the ISI mark, these products cannot be sold, imported, or distributed in the Indian market.