The MWSS Regulatory Office (RO) maintained its International Organization for Standardization (ISO) 9001:2015 Certification on its established Quality Management System (QMS), as it passed its second follow-up audit that covered the core process: Provision of Regulatory Services on Service Obligations Monitoring for Water Supply, and Wastewater Effluent Quality based on the Concession Agreement.

The Remote Audit and On-site Audit were conducted on the 17th and 30th of September 2020 respectively by renowned international certification body, TÜV Rheinland Philippines, Inc. The audit results affirmed the agency’s compliance with ISO global standards in its delivery of regulatory services for monitoring Manila Water and Maynilad’s service obligations based on the Concession Agreements.

The MWSS RO became ISO 9001:2015 certified on 31 December 2018.