The Federal Communications Commission maintains a list of communications equipment and services determined to pose an unacceptable risk to US national security or to the security and safety of US persons, based on determinations by Congress and federal security agencies. Listings name specific equipment and services, largely from Chinese and Russian manufacturers, and may be limited to particular uses such as public safety or the security of government facilities. Covered equipment cannot obtain the FCC equipment authorization required to be imported, marketed, or sold in the United States, and the Commission can also halt further importation and marketing of previously authorized covered equipment.
