AR 601-10 governs the recall, active duty service, and assignment of selected retired Soldiers during mobilization and peacetime operations.
View AR 601-10 on armypubs.army.mil
It covers recall authority and eligibility, medical fitness, exemptions, orders, pay and allowances, demobilization, and mobilization assignments. It requires qualifying retired Soldiers to meet grade, skill, medical, and security requirements and establishes procedures for voluntary and involuntary recall.
Under 10 USC 12301(a), retired Soldiers may be ordered to AD involuntarily in time of war or national emergency declared by Congress, or when otherwise authorized by law. (paragraph 6)
Regular Army retirees, and members of the Retired Reserve who have retired as stated in paragraph 16a(2), completed at least 20 years of active Service may volunteer to be called to AD under 10 USC 688. (paragraph 6)
Retirees will not be extended on AD in order to take leave. (paragraph 2)
Each month HRC will compare the non-volunteer retiree population to the personnel requirements provided by DCS, G1 and select the most recently retired Soldiers to fill vacant positions. (paragraph 2)
On REFRAD, other than for training, retired pay will be recomputed and processed under the DOD FMR, Volume 7B. (paragraph 1-4)