The authorization decision is the explicit responsibility of which organizational Official? Response:

The Information System Owner (ISO) is responsible for the overall development, procurement, integration, modification, and operation of an information system, but does not typically have the authority to make the final authorization decision.

The Chief Information Officer (CIO) has broad organizational responsibilities for information and IT, but the specific authorization decision for a system's operation and risk acceptance is delegated to the AO.

The Authorization Official (AO) is the senior management official specifically designated with the authority to examine the organizational risk and formally accept or reject the risk of operating an information system, thereby granting or denying an authorization decision (e.g., Authorization To Operate - ATO). This role is critical in the final step of the Risk Management Framework.

The Common Control Provider (CCP) is responsible for the development, implementation, assessment, and monitoring of common controls, not for authorizing a system to operate.