About NSF Certification
Third-party certification provides information to stakeholders that allows them to determine compliance to regulatory and purchase specifications, to apply risk management principles and to determine general suitability of products, systems and processes.
Certification Process
The NSF certification process is specific to the product, process or service being certified and the type of certification, but generally follows seven steps:
- Application and information submission
- Product evaluation
- Product testing in lab
- Manufacturing facility inspection, production confirmation and product sampling
- Test results review and acceptance
- Contract signed and products listed
- Annual plant inspection and retesting
Certification Policies
All certification programs are governed by certification policies that are referenced in the contract. The policies provide an overview of the rights and responsibilities of both the certifier and the manufacturer. The policies provide clear rules on the use of the NSF mark on products, labels and advertising, and prohibit misrepresentations.
Complaints and Requests for Investigations
It may be unclear whether a specific product or installation is indeed certified. We encourage regulators to contact the NSF Regulatory Hotline (+1 800.673.6275, ext. 5105) or visit our Contact Us page (and select the Customer Service option) to check the status of a product. Alternatively, regulators can file a complaint/request for investigation. We will conduct a thorough investigation of the manufacturer's claim, and report back to the regulator.
The Regulator’s Role in Certification
Regulatory bodies have worked with and built confidence in NSF. Regulators can strengthen regulatory programs by recognizing accredited certifications, or other certifications, such as “NSF or equivalent”, ensuring that other certifications are deemed equivalent to those of NSF.