Final answer:
Commanders, Commanding Officers (COs), and Officers in Charge (OIC) must obtain a one-on-one SAPR brief and the commander's toolkit within 30 days of assuming command.
Step-by-step explanation:
According to the information provided, Commanders, Commanding Officers (COs), and Officers in Charge (OIC) must obtain a one-on-one Sexual Assault Prevention and Response (SAPR) brief and the commander's toolkit within 30 days of assuming command. This is to ensure that they are informed and prepared to address issues related to sexual assault within their command.