Contact Us

For more information about NSF services, please choose one of the options below to contact us. Whether you’re a manufacturer interested in product testing, a reporter wishing to speak with a technical expert, a consumer wanting home product information or a regulator seeking to report a violation of the NSF mark, we’re here to help you. To obtain standards, visit the NSF Bookstore. For all other standards questions, email standards@nsf.org.

NSF International World Headquarters

  • NSF International
  • P.O Box 130140
  • 789 N. Dixboro Road
  • Ann Arbor, MI 48105, USA

Toll Free USA

+1800 NSF MARK (800 673 6275)

Receive an Estimate

We are pleased to offer your firm an estimate/quote package which includes an outline of the certification process, as well as an application for services for the most highly respected certification mark in the world.

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NSF International

Manufacturers, retailers, and other business professionals with general questions about NSF or its programs and services, please complete the General Inquiry Form below. If you would like to receive an estimate for services, please use the Receive an Estimate Form.

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Media Affairs

Reporters, producers, and editors looking for background information and interviews on an array of public health and safety topics are invited to complete the following form:

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Consumer Affairs Office

Consumers with questions about water filters, bottled water, faucets, dietary supplements, food safety, residential appliances or other consumer products are invited to view our Q&A section or complete the following form:

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Regulatory Affairs Hotline

Regulatory For more information about NSF's regulatory affairs services, please complete the General Inquiry Form below. If you need to report a violation of the NSF Mark, please use the Online Complaint / Investigation Form.

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