The mission of the Ninth Naval Construction Regiment is to provide and maintain a trained, ready and immediately available organized reserve force capable of satisfying the mobilization requirements set forth by higher authority.
Upon mobilization, the Ninth NCR's mission involves rapid and effective construction support and ground defense operations to the Navy, Marines Corps, and other forces as directed. Public works functions as directed and continuance of an operational readiness condition that will permit the Ninth NCR and its attached battalions to be organizationally redeployed within a minimal time as may be directed by higher authority.