Transport Layer Security (TLS) 1.0 was removed from FPDS-NG production on February 20, 2016. In accordance with the National Institute of Standards & Technology (NIST) Policy on Hash Functions, we also upgraded the FPDS-NG system to support SHA-2 SSL certificates. All systems will need to install a copy of the new certificate(s) in their server's trusted certificate store to allow communication.  Questions regarding the upgrade should be directed to the Federal Service Desk at www.fsd.gov, or (866) 606-8220.