This Technical Specification establishes guidelines for the development and use of self-declared environmental claims for textiles (e. g. fibres, yarns, fabrics), textile products (e. g. clothing) and textile components of products (e. g. upholstery fabric in furniture), which includes principles, methodology and rules for some terms commonly used in environmental claims. This Technical Specification does not provide any substitute for any legal requirements applicable to textile products, related to environmental information, environmental claims or labelling, or any other legal requirement.