Which of the following is NOT a requirement for transitioning to the Sustainment Phase?

The Sustainment Phase is a critical transition that ensures a unit is prepared to maintain operational readiness after deployment. Within this context, various requirements must be fulfilled to ensure that the unit can effectively sustain its operational capabilities.

The need for deployment certification is vital for confirming that a unit's systems and personnel are fully prepared for the operational demands they will face. Thus, achieving this certification is a fundamental requirement when transitioning to the Sustainment Phase.

Maintenance of Basic Phase exit criteria is necessary because it ensures that the foundational capabilities developed in the Basic Phase are retained, providing a stable platform from which units can operate during the Sustainment Phase.

Moreover, the completion of a Material Inspection by the Type Commander (TYCOM) is crucial for assessing the readiness and capability of the unit's material resources, ensuring they meet the required standards for operational effectiveness during ongoing sustainment.

In contrast, while a certification exercise may be beneficial for assessing unit readiness and capability, it is not specifically mandated as a requirement for transitioning into the Sustainment Phase. Therefore, identifying it as not a requisite helps to clarify the specific elements necessary for this transition.