DoD, GSA, and NASA are issuing an interim rule amending the Federal Acquisition Regulation (FAR) to implement a section of the Consolidated Appropriations Act, 2023, and its implementing guidance. This interim rule revises the FAR to implement the prohibition of having or using the social networking service TikTok developed or provided by ByteDance Limited. This prohibition applies to the presence or use of any covered application on any information technology owned or managed by the Government. The rule implements section 102 of Division R of the Consolidated Appropriations Act, 2023 (Pub. L. 117-328), the No TikTok on Government Devices Act, and its implementing guidance under Office of Management and Budget Memorandum M-23-13, dated February 27, 2023, No TikTok on Government Devices” Implementation Guidance. This rule is being implemented as a national security measure to protect Government information and information and communication technology systems.