OEKO-TEX 100, EN ISO 20471, ANSI/ISEA 107, NFPA 2112, EN 11612, BSCI, GRS, ISO 9001 — buyers in B2B workwear programs face a wall of acronyms and certificate types. This category demystifies them: what each certification actually tests for, when buyers need to ask for it, how to read the actual certificate documents (lot numbers, scope, expiry), and how to use compliance as both a risk control and a sales asset for downstream brand programs.