Fibre2Fashion Toggle navigation 29 Pic: ZDHC The Zero Discharge of Hazardous Chemicals (ZDHC) has published the Leather Wastewater Guidelines Addendum to expand the scope to include the leather industry, and as an addition to the current ZDHC Wastewater Guidelines Version 1.1. ZDHC is a group of apparel and footwear brands working to lead the industry towards zero discharge of hazardous chemicals. These ZDHC Leather Wastewater Guidelines set a single unified expectation for sampling, testing, and reporting of industrial wastewater and sludge resulting fro...