Where do I send my completed Form FDA 3602 (MDUFA Small Business Certification Request, for a Business Headquartered in the United States) and supporting materials?

The current mailing address for FDA’s Medical Device User Fee Small Business
Certification Request is located at the following web address,
https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/HowtoMarketYourDev
ice/PremarketSubmissions/ucm577696.htm.
Be sure to include complete, signed copies of all Federal (U.S.) income tax returns and
certifications from foreign national taxing authorities that relate to your Small Business
Certification Request.