communication or an authorized committee of the candidate, the candidate’s opponent or an authorized committee of the candidate’s opponent, or a committee of a political party. (B) The firewall or procedure must be described in a written policy that is distributed, signed, and dated by all relevant employees, consultants, and clients subject to the policy. (C) The policy must be preserved and retained by the person for at least 5 years following any termination or cessation of representation by employees, consultants, and clients who are subject to the policy. (D) The policy must prohibit any employees, consultants, and clients who are subject to the policy from attending meetings, trainings, or other discussions where nonpublic plans, projects, activities, or needs of candidates for election for Federal office or political committees are discussed. (E) The policy must prohibit each owner of an organization, and each executive, manager, and supervisor within an organization, from simultaneously overseeing the work of employees and consultants who are subject to the firewall or procedure. (F) The policy must place restrictions on internal and external communications, including by establishing separate emailing lists, for employees, consultants, and clients who are subject to the firewall or procedure and those who are not subject to the firewall or procedure. (G) The policy must require the person to establish separate files, including electronic file folders— (i) for employees, consultants, and clients who are subject to the firewall or procedure and to prohibit access to such files by employees, consultants, and clients who are not subject to the firewall or procedure