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Preface

The National Plumbing Code of Canada 2010, together with the National Building Code of Canada 2010 and the National Fire Code of Canada 2010, is an objective-based National Model Code that can be adopted by provincial and territorial governments.

In Canada, provincial and territorial governments have the authority to enact legislation that regulates the design and installation of plumbing systems within their jurisdictions. This legislation may include the adoption of the National Plumbing Code (NPC) without change or with modifications to suit local needs, and the enactment of other laws and regulations regarding plumbing system design and installation, including the requirements for professional involvement.

The NPC is a model code in the sense that it helps promote consistency among provincial and territorial plumbing codes. Persons involved in the design or installation of plumbing systems should consult the provincial or territorial government concerned to find out which plumbing code is applicable.

This edition of the NPC succeeds the 2005 edition.