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Code of Practice

Code of Practice on Sewerage and Sanitary Works

The Code of Practice on Sewerage and Sanitary Works is issued under Section 33 of the Sewerage and Drainage Act (Chapter 294). It aims to guide the Qualified Persons in the proper planning and design of the sanitary and sewerage system. In stipulating only the minimum and mandatory design requirements to be complied with, it is hoped that the Qualified Persons will exercise flexibility and creativity in the design of sanitary and sewerage system without compromising on functional and maintenance needs. In addition to the minimum requirements, some good engineering practices in the planning, design and construction of the sanitary and sewerage system are also given in this code.


Code of Practice on Sewerage and Sanitary Works (1st Edition - Mar 2000 with amendments under addendum No.1- Feb 2001 and addendum No.2- Nov 2004)  
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Sanitary drawings
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Code of Practice on Surface Water Drainage

The code of practice contains information on the basic planning, design and procedural requirements for surface water drainage, and specifies the minimum engineering requirements for the provision of functional facilities for surface water drainage. General amendments and revisions are expected from time to time.


Code of Practice on Surface Water Drainage (Sixth Edition - Addendum No. 1 )
Year of publication : June 2013 
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List of Appendices and Drainage Standard Drawings

Singapore Standard CP 48 : Code of Practice for Water Services

The Code of Practice is published by SPRING Singapore and it contains authoritative guidance on the design, installation, fixing and testing of potable water service installations in all residential, commercial and industrial buildings or premises.

You may wish purchase it online at SPRING eShop Website Click Here.



Technical Guide for Greywater Recycling System

This technical guide is provided to guide building owners & Qualified Persons on the design, installation, testing, operation and maintenance of greywater recycling systems that supply non-potable water for flushing of water closets/urinals, for cooling tower make-up water and for certain allowable uses in general washing and irrigation. This guide provides the minimum standards for the design, installation and maintenance of greywater recycling systems.


Technical Guide for Greywater Recycling System (V2-1 Sep 2014)
Year of publication : Sep 2014
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Last updated on 23 Sep 2014