The John S. McCain Fiscal Year 2019 National Defense Authorization Act (NDAA) (H.R. 5515) (the 2019 NDAA) was signed into law on August 13, 2018. Although the 2019 NDAA, section 889 (Prohibition on Certain Telecommunications and Video Surveillance Services or Equipment) set forth a number of prohibitions, this alert is focused specifically on section 889 (a)(1)(A), which prohibits federal agencies from procuring, obtaining, extending, or renewing a contract to procure or obtain equipment, systems, or services that use covered telecommunications equipment or services as substantial or essential components of any system, or as critical technology as part of any system. The 2019 NDAA defined covered telecommunications equipment or services to include those produced by Huawei Technologies Company, ZTE Corporation, or any affiliates or subsidiaries of these companies. The 2019 NDAA further included - for purposes of public safety, security of government facilities, physical security surveillance of critical infrastructure, and other national security purposes – video surveillance and telecommunications equipment produced by Hytera Communications Corporation, Hangzhou Hikvision Digital Technology Company, or Dahua Technology Company (or any subsidiary or affiliate of such entities) as covered telecommunications equipment or services. Finally, the 2019 NDAA's definition of covered telecommunications equipment or services broadly prohibits the U.S. Government's acquisition of any products or services from corporations owned or controlled by the PRC. The 2019 NDAA required the prohibition to take effect exactly one year after enactment.