2027 UNIFORM PLUMBING CODE
The 2027 edition of the Uniform Plumbing Code (UPC®) represents the most current approaches in the plumbing field. It is the ninth edition developed under the ANSI Consensus process is designated as an American National Standards by the American National Standards Institute (ANSI). Contributions to the content of this code were made by every segment of the built industry, including such diverse interests as consumers, enforcing authorities, installers/maintainers, labor, manufactures, research/standards/testing laboratories, special experts and users.
The UPC is designed to provide consumers with safe and sanitary plumbing systems while, at the same time, allowing latitude for innovation and new technologies.
Key changes to the 2027 UPC include:
- New provisions for adult changing stations
- New provisions for laminar flow faucets in healthcare facilities
- New provisions for sizing dual-purpose and instantaneous (tankless) water heaters
- New provisions for flow-through expansion tanks in water supply and distribution systems
- New provisions for pitless adapters, pitless units, and well caps
- New provisions for vacuum testing of drainage and vent systems
- New provisions for rehabilitation of existing building sewer and storm sewer piping
- Updated gray water system provisions addressing soil infiltration rates for nonpotable applications
- Updates to Appendix N addressing building water management planning and monitoring to reduce Legionella and scalding risks in plumbing systems
- New Appendix Q providing requirements for the safe operation, closure, and reopening of building water systems
- New Appendix U providing recommended practice for hydrogen fuel gas piping systems
- New Appendix V providing minimum requirements for onsite wastewater treatment systems for direct potable water reuse
