36 CFR §1280.26

1. (a)On NARA property or in NARA facilities, you may not:
   1. (1)Solicit for personal, charitable, or commercial causes;
   2. (2)Sell any products;
   3. (3)Display or distribute commercial advertising; or
   4. (4)Collect private debts.
2. (b)The following activities are exceptions to the prohibitions in subsection (a):
   1. (1)Participating in national or local drives for welfare, health, or other funds that the Office of Personnel Management authorizes or that NARA approves (e.g., the Combined Federal Campaign);
   2. (2)Employees collecting non-monetary items such as food, clothing, or toys, as approved by the Archivist or his/her designee;
   3. (3)Authorized employee organizations, including employee affinity groups, soliciting for membership dues or other organizational support, as approved by the Archivist or his/her designee; and
   4. (4)Authorized charitable support organizations, like the National Archives Foundation or a Presidential library foundation (e.g., the museum store at the National Archives Building), conducting revenue-producing activities.