The Water Service Industry Act 2006 (WSIA) will be enforced on 1st January 2008 (which is known as the appointed date). The WSIA is applies only in Peninsular Malaysia and Federal Territory of Labuan. It does not encroach nor does it affect the general application of existing laws on environmental quality and land matters and existing state powers over the water source.

Amongst the objective of WSIA is to establish the framework to regulatory intervention and to promote the National Policy Objective for the water supply end sewerage services industry