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The Minnesota Plumbing Code contains information about approved materials, safe installation methods and basic plumbing principles. It is important to hire knowledgeable, qualified plumbers and plumbing contractors to make the proper decisions regarding the best materials and methods for plumbing installation.

It regulates the design and installation of plumbing systems statewide for all buildings including new, addition, alteration, repair and replacement. 

The code contains requirements for drain, waste, and vent systems, water supply and distribution systems, backflow prevention, water conditioning equipment, roof drainage systems, plumbing fixtures, materials and nonpotable rainwater catchment systems.

The 2020 Minnesota Plumbing Code, Chapter 4714, took effect Dec. 17, 2021. The code incorporates by reference the 2018 edition of the Uniform Plumbing Code with Minnesota amendments and replaces the 2015 Minnesota Plumbing Code.

Code book

The 2020 Minnesota Plumbing Code is published by the International Association of the Plumbing and Mechanical Officials (IAPMO) for Minnesota in a single, reformatted custom code book. It incorporates Minnesota amendments and reads as a unified code book. It also includes Chapter 4716, Plumber Licensing and Apprentice Registration, and Chapter 1300, Minnesota Administration Code.

Code books available 

The reformatted, custom 2020 Minnesota Plumbing Code book, Chapter 4714, is available from the International Association of Plumbing and Mechanical Officials