Regulates the design, installation, maintenance, alteration and inspection of building mechanical systems that are used to provide control of environmental conditions and related processes. Contains detailed provisions governing mechanical and fuel gas systems using prescriptive and performance-based provisions with emphasis on performance. Is in Minnesota Rules Chapter 1346. The rule adopts by reference Chapters 2 through 15 of the International Mechanical Code, Chapters 2 through 8 of the International Fuel Gas Code (including amendments to both) and ANSI/ASHRAE Standard 154-2011, Ventilation for Commercial Cooking Operations. It also includes a Minnesota chapter about Administration. There is no longer a need to separately purchase the ICC model codes and Minnesota amendments and refer to them both. Now they are contained in a single reformatted Minnesota-specific code book. The Minnesota Mechanical and Fuel Gas Code took effect January 24, 2015.