IAPMO R&T expands Mexico lab testing for U.S. plumbing certification

IAPMO R&T says its Monterrey, Mexico lab is now recognized to test to additional American standards, including NSF/ANSI/CAN 372 for lead content compliance. The expansion gives manufacturers another testing path for products aimed at U.S. and North American markets.

Why it matters: - The expanded lab scope gives manufacturers more access to recognized testing for plumbing products sold in the U.S. and North America. - The move can shorten compliance workflows for products that need certification and use of the UPC® mark. - NSF/ANSI/CAN 372 testing is important for products that contact potable water because it supports lead-content compliance. - The expansion also affects products subject to federal and California lead-content requirements.

What happened: - IAPMO R&T announced that its Monterrey-based IAPMO Mexico laboratory is now a recognized testing facility for American cUPC standards. - The lab can now support certification to multiple American standards, including NSF/ANSI/CAN 372 for lead content compliance. - The announcement was made Sept. 10, 2026.

The details: - The lab’s expanded scope includes testing for use of the UPC® mark under several standards and requirements. - Those standards include ASME A112.19.2-2024/CSA B45.1-24 for tank-type water closets and urinals only. - The scope also includes the EPA WaterSense Specification for Tank-Type Toilets, Version 1.2, dated June 2, 2014. - Other covered standards include ASME A112.19.14-2013 (R2018) for dual-flush water closets. - The expanded scope includes NSF/ANSI/CAN 372-2024. - Additional standards listed are ASSE 1002-2020 / ASME A112.1002-2020 / CSA B125.12-20 and ASME A112.19.5-2022 / CSA B45.15-22. - The scope also covers Section 1417(d) of the Safe Drinking Water Act. - It includes the lead content requirements of Section 116875 of the California Health & Safety Code. - IAPMO R&T says the expanded laboratory recognition is especially valuable for manufacturers of plumbing products that must show compliance with those requirements.

Between the lines: - The expansion broadens IAPMO R&T’s testing footprint without requiring manufacturers to rely only on U.S.-based labs. - The company is positioning Mexico-based testing as a faster or easier route to certification, while keeping technical requirements unchanged. - IAPMO executive vice president and chief Technical Services officer Tom Palkon said manufacturers are seeking clear, efficient pathways to demonstrate product compliance and access key markets. - Palkon said the Mexico lab expansion gives manufacturers additional testing and certification options while maintaining IAPMO R&T’s technical rigor and confidence.

What's next: - Manufacturers interested in testing and certification under the listed standards are being asked to contact IAPMO R&T. - IAPMO R&T says those discussions will cover product eligibility, testing requirements and next steps. - The company is likely to use the expanded scope to support more certification activity for plumbing products and components.

The bottom line: - IAPMO R&T has widened its Mexico lab’s role in U.S.-focused certification, giving manufacturers another route to prove compliance on lead content and other plumbing standards.