Download Certification Marks

The NSF certification mark is a mark known and respected by regulatory agencies, service providers and homeowners alike. By placing the NSF mark on your onsite wastewater treatment devices, packaging or literature, it is a sign of confidence that the product has successfully met stringent, consensus-based national standards.

This page was designed to help certified clients quickly and easily download the mark most appropriate for their certification. Below you will find a variety of certification mark options for products certified to Standard 40, 41, 46, 245, as well as a combination mark of Standards 40 and 245. Please be sure you are downloading the correct mark based on your NSF certification. If you are unsure of which mark to use, please contact us.

If you have additional questions, or trouble downloading these marks, please contact Diane Haworth, Marketing Manager, at dhaworth@nsf.org or (+1) 734.214.6202.

How to Download NSF Marks

Select the appropriate graphic format to the right of the mark you wish to download, then click on the link to begin the download process. These files are provided in a form designed for use on printed materials. If you do not know the correct graphic format you need, follow these basic guidelines:


NSF/ANSI Standard 40 Marks


NSF/ANSI Standard 41 Marks


NSF/ANSI Standard 46 Marks


NSF/ANSI Standards 40 & 245 Marks