Metal and alloys Bureau of Indian Standards (BIS) certification guarantees that goods satisfy the designated Indian Standards (IS) for performance, quality, and safety. Manufacturers who want a BIS license have to find pertinent IS codes, guarantee compliance, create internal testing programs, and apply via the BIS portal. The procedure calls for quality control validation, product testing in labs approved by BIS, and factory assessment. Approved manufacturers have license to use the ISI mark. Common IS codes call for IS 1786 (steel bars), IS 617 (aluminum alloys), and IS 191 (copper). Usually lasting one year, the license is renewed contingent on ongoing compliance. BIS accreditation raises market acceptance and product credibility.