ZDHC recognises four different types of output where chemicals may end up:

1. the final product
2. sludge
3. wastewater
4. air emissions

With the exception of the final product (RSL), ZDHC has published guidelines and tools to manage these different kinds of outputs that help minimise impact of chemical outputs on the environment. On top of that, ZDHC is working on guidance that relates to circularity of chemical outputs.