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This website adopts the Web Content Accessibility Guidelines (WCAG 2.0) as the accessibility standard for all its related web development and services. WCAG 2.0 is also an international standard, ISO 40500. This certifies it as a stable and referenceable technical standard. 

WCAG 2.0 contains 12 guidelines organized under 4 principles: Perceivable, Operable, Understandable, and Robust (POUR for short). There are testable success criteria for each guideline. Compliance to these criteria is measured in three levels: A, AA, or AAA. A guide to understanding and implementing Web Content Accessibility Guidelines 2.0 is available at: https://www.w3.org/TR/UNDERSTANDING-WCAG20/

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SERVICE ADVISORIES

Message of MWSS RO Chief Regulator for World Water Day 2021

Water Conservation Message from Ogie Diaz

Water Conservation Message from Karl Bautist

Water Conservation Message from Rep. Geraldine Roman

Water Conservation Tips from Dance Icon Mr. Wowie De Guzman

Water Conservation Message from Ms. Alexa Macanan

Water Conservation Tips from Ms. Bea de Leon

Water Conservation Tips from Ms. Jules Samonte

Water Conservation Tips from Ms. Michelle Cobb

Water Conservation Tips from Ms. Miho Nishida

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MWSS RO's Tribute to COVID-19 Frontliners

Water Service Interruptions

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METROPOLITAN WATERWORKS AND SEWERAGE SYSTEM
REGULATORY OFFICE

The Metropolitan Waterworks and Sewerage System Regulatory Office (MWSS RO) was created in August 1997 by virtue of the Concession Agreements signed between the MWSS and the two Concessionaires: Manila Water Company, Inc. for the East Zone and Maynilad Water Services, Inc. for the West Zone.

The MWSS RO functions as a collegial body composed of five (5) Regulators. It is headed by the Chief Regulator who has overall responsibility for the operation of the office, and four (4) Deputy Administrators for Technical Regulation, Customer Service Regulation, Financial Regulation, and Administration and Legal Affairs.

Any action or decision by the MWSS RO on substantive matters affecting the Concession Agreement requires at least a majority vote of three (3) members. The Chief Regulator chairs the meeting of the MWSS RO and has the final approval over the hiring and dismissal of all professional staff of the office. He also acts as the principal spokesperson of the office.

The MWSS RO is mandated to monitor the performance of the Concessionaires with respect to their contractual obligations under the Concession Agreement. Among its many functions, the MWSS RO reviews, monitors and enforces rates and service standards; arranges and reports regular independent audits of the performance of the Concessionaires; and monitors the infrastructure assets. However, the MWSS RO’s functions may change over time for the effective regulation of water and sewerage services.