Plumbing certification and performance testing services
With over 75 years of experience in certifying plumbing products, UL's drinking water product certification program offers one-stop certification and performance testing services to manufacturers of plumbing-related products.
Backed by our team of toxicologists, engineers, chemists and sanitarians specializing in water product certification, UL has the knowledge and experience to certify your product thoroughly and accurately.
The UL Plumbing Mark -- one mark is all you need to demonstrate plumbing code compliance
In response to industry demand, UL now offers the UL Plumbing Mark. This Mark clearly identifies those products that comply with all applicable:
- Health-effects standards
- Plumbing performance standards
- Requirements of both the IPC and UPC and Canadian plumbing codes
Key advantages of the UL Plumbing Mark
- The UL Plumbing Mark demonstrates compliance with both the International Plumbing Code (IPC) and the Uniform Plumbing Code (UPC) -- one Mark demonstrates product compliance in all 50 states. Products evaluated to the National Plumbing Code of Canada are suitable for installation in Canada.
- The UL Plumbing Mark is a UL Listing Mark. Products displaying the UL Plumbing Mark have been evaluated to all applicable nationally recognized health-effects and performance testing standards
- UL brand value -- no other mark has the recognition or acceptance, or can add more value to your brand
Products carrying the UL Plumbing Mark
The UL Plumbing Mark will be implemented in phases. Initially, it will be available for all products related to plumbing fixture fittings including:
Mechanical plumbing devices
- Faucets for sinks
- Faucets with pullout spouts and side sprays
- Handheld showers
Mechanical devices
- Pressure balanced valves
- Thermostatic mixing valves
Use of the UL Plumbing Mark and the UL Water Quality Mark
- Products that bear the UL Water Quality Mark have been evaluated to all applicable health-effects standards. The new UL Plumbing Mark is a Listing Mark that indicates samples of a product have been evaluated to all applicable health-effects and performance testing requirements
- Manufacturers interested in the UL Plumbing Mark will need to have their products evaluated against all standards and requirements established for their products
- Manufacturers have the option to use the UL Water Quality Mark in addition to the new UL Plumbing Mark
Plumbing Mark FAQs
Want to learn more about the UL Plumbing Mark? Please visit our FAQ page.
Performance testing
Through a strategic alliance with Kiwa, UL has expanded its water product certification services to provide streamlined ways to certify and test the health effects and performance of plumbing products for the global marketplace.
Click here to learn more about UL's performance testing services.
WaterSenseSM
As an EPA-licensed certifying body, UL is positioned to help you demonstrate that your product meets EPA WaterSenseSM criteria. With the growing demand for environmentally responsible products, UL is continuing its dedication to public safety by helping manufacturers meet the demand for more environmentally responsible products.
As an approved certification organization, UL works with manufacturers to help them obtain the WaterSense label for plumbing products that demonstrate at least 20 percent greater efficiency in water utilization. Click here to learn more.






