Specifically: (3) Chapters 11 through 14, inclusive, are deleted in their entirety and chapters 16 through 43, inclusive, are deleted in their entirety. Chapter 15, Exhaust Systems, is adopted as an alternative to the International Mechanical Code for exhaust systems only. All other requirements for mechanical systems in detached one- or two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories above grade in height, and their accessory structures, shall be found in the latest adopted edition of the International Mechanical Code.