AR 1-20 governs Department of the Army responsibilities, policies, and procedures for legislative affairs and congressional activities.
View AR 1-20 on armypubs.army.mil
The publication covers contacts with Congress, legislative proposals, investigations, congressional hearings, communications, document releases, and notifications. It requires coordination, clearance, timely responses, and restrictions on certain contacts and disclosures.
Army officials will not, however, engage in any political activity as defined in 5 Code of Federal Regulations 733734 to include associating the U.S. Army with particular partisan causes or candidates. (paragraph 2-1)
Notify OCLL and ASA (FM&C) of all efforts by members of Congress or congressional staff to directly schedule a meeting, engagement, or event on an Army installation or with Army officials, and coordinate with OCLL and ASA (FM&C) through the execution of those meetings, engagements, or events. (paragraph 2-2)
Army officials will not ask members of Congress or congressional staff to support funding requests not included in the Presidents budget request or to enact legislation that has not been approved by HQDA, the Department of Defense (DoD), and the Administration. (paragraph 2-4)
Army officials will obtain clearance through OCLL of any statement to be provided to Congress in a letter, report, testimony, or other communication that offers a position or view on proposed or pending legislation. (paragraph 2-4)
Army activities contacted directly by a congressional committee to appear or provide information for an investigative hearing will forward requests to the OCLL LI&N Division. (paragraph 3-1)