Secure Equipment Act of 2021 This bill requires the Federal Communications Commission (FCC) to establish rules stating that it will no longer review or approve any authorization application for equipment that is on the list of covered communications equipment or services. (Listed communications equipment or services are those that the FCC determines pose an unacceptable risk to national security or the security and safety of U.S. persons.) The rules may not allow the FCC to retroactively review or revoke an equipment authorization.