AR 600-8-111 governs Army manning requirements, individual fillers, replacements, and mobilization during war, crisis, and national emergency.
View AR 600-8-111 on armypubs.army.mil
AR 600-8-111 covers wartime requirements development, operation plans, filler and casualty replacement requisitions, and access to the Reserve Components. It requires units to maintain shortage lists and sets limits and procedures for Reserve Component activation, reporting, reassignment, and deferments.
An order to active duty pursuant to 10 USC 12304a will not exceed 30 days without Secretary of Defense approval, and is limited to 120 days, including any training required for the anticipated mission duties and accrued leave. (paragraph 5-1)
An order to active duty pursuant to 10 USC 12304 or 12304b will not exceed 365 days, including any training required for the anticipated mission duties, accrued leave, and, if applicable, post deployment/mobilization respite absence. (paragraph 5-1)
RC Soldiers who as Civilians are designated emergency essential and key employees will not be mobilized they should be placed in the Standby Reserve pursuant to the most current edition of the Secretary of Defense Memorandum on Global Force Management Implementation Guidance, and DoDI 1215.06. (paragraph 5-2)
RC Soldiers who consent to duty under 10 USC 12301(d) or who have been involuntarily mobilized must report to active duty as ordered, unless it is physically impossible or would clearly be a threat to the health, welfare, or safety of others to do so. (paragraph 5-5)
All units are required to maintain a list of shortages to fill their units to required wartime strength. (paragraph 2-10)