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The UPC, developed by the International Association of Plumbing and Mechanical Officials (IAPMO), sets standards for the installation and inspection of plumbing systems to ensure the public’s health and safety (Wikipedia) (IAPMO).

ASSE certification focuses on product performance standards for sanitary and plumbing systems to ensure they meet health and safety regulations (IAPMO)

A program by the U.S. Environmental Protection Agency (EPA) that identifies and promotes water-efficient products and practices. WaterSense certification ensures products use at least 20% less water without sacrificing performance (IAPMO).

UL certification indicates that products have been tested for safety risks and meet UL’s standards for safety and performance (Annod Industries).

Refers to California’s lead-free plumbing law (AB 1953), which mandates that any pipe, pipe fitting, plumbing fitting, or fixture intended to convey or dispense water for human consumption must be lead-free (Annod Industries).