Sustainable Textile Production (STeP) is an Oeko-Tex certification system for brands, retail companies and manufacturers from the textile chain who want to communicate their achievements regarding sustainable production to the public in a transparent, credible and clear manner. Certification is possible for production facilities of all processing stages from fibre production, spinning, weaving and knitting mills to finishing facilities and manufacturers of ready-made textile items. STeP replaced the previous Oeko-Tex Standard 1000.