AR 1-19 governs the Secretary of the Army delegations of authority program for executive agent and non-executive agent delegations.
View AR 1-19 on armypubs.army.mil
It defines Department of Defense Executive Agent designations and establishes roles for the Secretary of the Army, administrative officials, and delegees. It requires written delegations, program reviews, points of contact, records, and coordination for assigned responsibilities.
DoD defines EA as the DoD Component head, or official required in statute, to whom the SECDEF or DEPSECDEF has assigned specific responsibilities, functions, and authorities to provide defined levels of support for operational missions, or administrative or other designated activities, that involve 2 or more DoD Components. (paragraph 2-1)
Only the SECDEF or DEPSECDEF may assign a DoD EA designation and associated responsibilities and authorities generally through memorandums or DoDDs however they can be established through other sources. (paragraph 2-2)
No member or organization of the Army will volunteer the SECARMY as a DoD EA for any program or mission. (paragraph 2-2)
Establish and disseminate policy, procedures, and standards for SECARMY DoAs, including those incorporated into DA administrative publications. (paragraph 1-7)
Notify and/or obtain approval from the SECARMY, as appropriate, on any actions that will have significant White House, congressional, DoD, or public interest or would represent a significant change in Army precedent or policy. (paragraph 1-8)