The ZDHC Wastewater Guidelines set a unified expectation for wastewater quality in the textile, apparel and footwear industry. This includes reporting limits for traditional and hazardous chemical parameters, alongside sampling and reporting frequency. By doing so, the Wastewater Guidelines aim to reduce the workload and cost faced by suppliers in satisfying multiple brand-specific testing requirements.
These guidelines are publicly available. Anyone active in the textile, apparel, and footwear value chain is welcome to use them free of charge. To enable widespread industry adoption, ZDHC encourages its Contributors to adopt the Wastewater Guidelines within their organisations.