ZDHC employs the concept of “Input,” “Process,” and “Output” as an approach to chemical management in facilities. In terms of input, which involves the procurement and use of chemicals in facilities, there are two modules: “ChemCheck” and “InCheck.”

“InCheck” is a module that verifies whether the inventory of chemicals procured and used in facilities conforms to the ZDHC MRSL (Manufacturing Restricted Substances List). This module consists of two types: “Performance InCheck” and “InCheck Verification.”

“Performance InCheck” allows facilities to upload their chemical inventory to the application of a certified solution provider, which assesses compliance. The results are then issued as a Performance InCheck Report (PIC report).

“InCheck Verification” involves on-site verification of whether the chemicals listed in the issued PIC report are actually present in the facility. If the chemicals are stored and used as specified, compliance is determined, and the facility can obtain the InCheck conformity mark.