This supplement includes nine revised test methods, one editorially revised test method, and one revised monograph for a total of eleven approved standards since publication of the 2020 AATCC Technical Manual. They are available ONLY as downloadable PDFs for 2020. The 2020 Mid-Year Technical Manual Supplement will be discontinued at the end of 2020, and all standards contained herein will appear in the 2021 AATCC Technical Manual.