Final answer:
Indoctrination training for residents in unaccompanied housing must be conducted within 45 days of occupancy.
Step-by-step explanation:
The indoctrination training for residents in unaccompanied housing must be conducted within 45 days of occupancy for all Sailors. This training is the responsibility of the Installation Commanding Officers (COs) who must ensure that all residents receive the necessary orientation and instruction.