AR 140-10 governs assignments, attachments, details, removals, and transfers of U.S. Army Reserve Soldiers.
View AR 140-10 on armypubs.army.mil
It covers the Ready Reserve, Individual Ready Reserve, Standby Reserve, Retired Reserve, inter-service transfers, boards, and removal from active status. It includes requirements for conditional releases, Retired Reserve transfers, personnel actions, and internal control evaluations.
A manpower pool consisting of individuals who have had some training or who have served previously in the AC or in the SELRES and may have some period of their MSO remaining. (paragraph 2-4)
The SELRES and IRR liable for AD as prescribed by law (see 10 USC 10142, 10 USC 12301, and 10 USC 12302) (see JP 405). (paragraph 2-4)
The authority to grant a conditional release or final clearance to enlist or be appointed in the ARNG is based on the Soldier's status in the USAR. (paragraph 5-1)
Assignment to the Retired Reserve is authorized, except Soldiers subject to involuntary separation. (paragraph 6-1)
The purpose of this evaluation is to assist commanders and human resource specialists in evaluating the key internal controls listed. (paragraph 6-2)