North American Testing (NAT) is accredited by the ANSI National Accreditation Board (ANAB) to certify products to the following Standards:
- NSF/ANSI Standard 40
Residential Wastewater Treatment Systems - NSF/ANSI Standard 46
Components and Devices Used in Wastewater Treatment Systems - NSF/ANSI Standard 245
Wastewater Treatment Systems – Nitrogen Reduction - NSF/ANSI Standard 350
Onsite Residential and Commercial Water Reuse Treatment Systems - NSF/ANSI Standard 385
Disinfection Mechanics