www.pmmag.com/articles/91169-ul-introduces-new-plumbing-mark

UL Introduces New Plumbing Mark

August 8, 2007

UL announced a new plumbing mark that better serves the needs of manufacturers, users, regulators and consumers. The new UL Plumbing Mark identifies those products that comply with all applicable health-effect and performance standards and product requirements, and demonstrate compliance with both the IPC and UPC plumbing codes.