Tariff approvals

The Commission is responsible for regulating prices for certain water and sewerage services provided by Victorian water businesses. Its price regulation role relates exclusively to the prescribed services set out in the Water Industry Regulatory Order, which are typically provided on a non-competitive basis. The Commission does not regulate prices for other services that water businesses may provide in competition with other service providers, such as plumbing services or the sale of gardening products and water tanks.

Following the 2008 regional and rural price review and the 2009 metropolitan Melbourne price review, the Commission released a price determination for each business. These price determinations set out how tariffs can be adjusted during the regulatory period. Each year the Commission approves the maximum tariffs that each business can charge consistent with that business's determination.