Wastewater Laboratories ZDHC Approval
Version 1 - Last updated
01 Jul 2026
Obtaining and maintaining ZDHC approved status is mandatory for laboratories. This process verifies technical competence in alignment with the ZDHC Wastewater and Sludge Guidelines. Following these steps guarantees that all laboratory outputs meet the rigorous transparency benchmarks required by ZDHC.
There are four requirements in Wastewater Laboratories ZDHC Approval:
1
Apply
Apply through the Solution Provider Platform (SPP)
2
Comply
Comply with application requirement.
3
Connect
Connect to the Find Your Expert platform
4
Demomstrate
Demonstrate a strong and complete response to all application criteria