Nuclear Suppliers Group Information Sharing System (NISS)

Access to NISS is restricted to NSG Delegates and must be protected from unauthorized use or distribution. By logging into NISS, you acknowledge that information will be held in confidence according to the NSG's established procedures.

NOTE: A new version of NISS is now available at The previous version of the system, located at, will remain operational and updated through at least November 6, 2020. All registered users will receive instructions via e-mail on logging into the new system. For assistance, contact

NISS Users with Username & Password Click below

Click the link below to access NISS Account Services