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WSD Circular Letters

Please note that all the circular letters held under this web page are in PDF format and you need to download the latest version of Acrobat Reader to view and print these documents.

The following list is a complete set of existing Circular Letters that are currently in force.

From time to time, new Circular Letters are added to the list to promulgate new policy decisions and procedures. Circular Letters are removed from the list when they are outdated or their contents have been subsumed in other relevant publications issued by Water Supplies Department.

A full set of circular letters can be downloaded (file size of ~6.2MBytes) at this link.

Please note that all the circular letters held under this web page are in PDF format and you need to download the latest version of Acrobat Reader to view and print these documents.

The following list is a complete set of existing Circular Letters that are currently in force.

From time to time, new Circular Letters are added to the list to promulgate new policy decisions and procedures. Circular Letters are removed from the list when they are outdated or their contents have been subsumed in other relevant publications issued by Water Supplies Department.

A full set of circular letters can be downloaded (file size of ~12 MBytes) at this link.

Please note that all the circular letters held under this web page are in PDF format and you need to download the latest version of Acrobat Reader to view and print these documents.

The following circular letters have been either superseded or subsumed under relevant documents. For the subsumed circular letters, the policies and procedures contained therein can now be found in the document(s) (Technical Requirements for Plumbing Works in Buildings and Guide to Application for Water Supply) indicated in the table below and should continue to be followed.

FAQs for Obsolete Circular Letters

No. Description Date Issued Category Applicable to
LP AP
2020
1/2020 Minimum Meter Size Requirement for Trade Fresh Water Supply to Designated Business Categories 2020/02/19 3 Yes Yes
2019
11/2019 Water Efficiency Requirements for Water-closet Fitment in Inside Service 2019/11/21 3 Yes Yes
10/2019 Updated Version of “Technical Requirements for Plumbing Works in Buildings” and “Guide to Application for Water Supply” 2019/10/21 3 Yes Yes
9/2019 Installation of Security Seals for Newly Installed Water Meters of size 40mm or above 2019/10/09 3 Yes Yes
8/2019 Penalty and Demerit Point System for Managing the Performance of Licensed Plumbers 2019/09/11 1 Yes Yes
7/2019 Electronic Submission for Applications for Water Supplies to New Village Type Houses using Pre-approved Standard Plumbing Design Drawings 2019/09/05 3 Yes Yes
6/2019 Streamlined Measures for Processing Applications for Water Supply to New Village Type Houses 2019/08/06 3 Yes Yes
5/2019 Streamlined Measures for Processing Applications for Water Supplies to Improvised Sprinkler Systems 2019/07/31 3 Yes Yes
4/2019 Plumbing Products with Product Certification under the Surveillance Programme on General Acceptance Products 2019/06/25 4 Yes Yes
3/2019 Control on Lining Materials of Potable Water Tanks of Inside Service 2019/06/21 4 Yes Yes
2018
2/2018 Commencement of Waterworks (Amendment) Ordinance 2018 2018/02/15 1 Yes Yes
2017
8/2017 Surveillance Programme for the General Acceptance System 2017/09/16 4 Yes Yes
2016
3/2016 Voluntary Continuing Professional Development Scheme for Licensed Plumbers 2016/10/12 1 Yes Yes
2015
2/2015 Validity Period for General Acceptance of Water Supply Pipes and Fittings 2015/08/11 4 Yes Yes
1/2015 Prohibition of Using Leaded Solder at Fresh Water Inside Services and New Parameters for Testing of Water Sample 2015/07/13 3 Yes Yes
2010
3/2010 Target Response Time for Completing the Key Activities in respect of the Application for Water Supply 2010/09/24 3 Yes Yes
2006
3/2006 Meter Removal and Water Supply Disconnection due to Building Demolition 2006/09/07 2 NA Yes
1996
5/1996 Reducing Minimum Flushing Volume from 9 Litres to 7.5 Litres 1996/08/17 2 Yes Yes

Note

Category Information
1 Administration
2 Hong Kong Waterworks Standard Requirements
3 Application of Water Supply
4 Approval of Pipes and Fitting