As part of NIH's ongoing implementation of VisitNIH, part of the Visitor Access Management Initiative, NIH is providing updates about VisitNIH.  

Montgomery County, MD

• NIH recently implemented the updated visitor requirements at the remaining Montogomery County, Maryland, leased facilities.
• As of October 13, 2025, any non-U.S. person who does not complete the VisitNIH pre-registration or were not approved will not be able to access the NIH facilities in Montgomery County. All non-U.S. person visitors coming to these facilities are required to have an escort.

Phoenix, AZ

• Beginning January 5, 2026, NIDDK Phoenix staff are expected to begin pre-registering any non-U.S. person visitors with planned visits in February 2026 and beyond.
• As of February 9, 2026, non-U.S. person visitors who do not complete the VisitNIH pre-registration and do not receive approval will not be able to access the NIH facilities in Phoenix, AZ. Non-U.S. person visitors coming to these facilities are required to have an escort, with the exception of patients and up to two caregivers.
• Note: Patients and caregivers visiting the NIDDK Guadalupe Clinic will not be required to pre-register at this time.

Visit Request Submission Deadlines

• When completing the VisitNIH pre-registration process, HHS policy requires that non-U.S. person visitors submit the pre-registration form more than 10-full business days in advance of the event start date. Weekends, holidays and partial days do not count as a full business day.
• Currently, less than 55% of visit request submissions are submitted on time or are considered complete for HHS to vet.  
• NIH still strongly recommends that non-U.S. person visitors complete the pre-registration process 30 days in advance to allow for the gathering of information and addressing of any potential errors in submissions. 

For more information about VisitNIH, please visit the VisitNIH Intranet site. ​