International Plumbing Code 2015 with Significant Changes


The 2015 IPC® contains many important changes including:

An exception to the requirement for public toilet facilities has been added to the code for tenant spaces intended for “quick transactions” such at takeout dining establishments of 300 square feet or less in area. (Section 403.3; P35-12)
The weighted average of lead content used in drinking water pipe and fittings has been reduced to a “lead-free” value of not more than 0.25 percent lead. This provision meets the new requirements of the Federal Reduction of Lead in Drinking Water Act that went into effect in 2014. (Section 605.2.2; P112-12)
All valves in the water supply and distribution system that supplies drinking water must now comply with NSF 61. Previous editions only required certain types of valves to comply. (605.7; P115 – 12)
New innovative provisions for the replacement of underground sewers with minimal disruption for pipes up to six inches in diameter via the “pipe bursting method” have been added to the code. (Section 717; P159-12)
The storm drainage provisions of Chapter 11 have been substantially revised relative to the size of roof drainage systems. Research has shown that ponding of water can increase the pressure in the drainage system to the point where piping failures can occur. (Chapter 11; P211, P217, P218, P219 and P221-12)
Chapter 13 Gray Water Recycling Systems has been replaced with a broader new chapter entitled Nonpotable Water Systems. It includes updates to the gray water provisions and new requirements for rainwater harvesting systems and systems utilizing reclaimed water for nonpotable applications. These provisions are correlated with the International Green Construction Code. (Chapter 13; P11-12)
Requirements related to subsurface landscape irrigation systems that were previously found in the Gray Water Recycling Systems Chapter was updated and relocated to a new chapter entitled Subsurface Landscape Irrigation Systems. These provisions are correlated with the IgCC. (Chapter 13; P11-12)