Final answer:
In some agencies, the senior official and the Chief Information Officer may be co-authorizing officials, and in this situation, the senior official approves the operation of the information system concurrently with the Chief Information Officer.
Step-by-step explanation:
In some agencies, the senior official and the Chief Information Officer may be co-authorizing officials. In this situation, the senior official approves the operation of the information system concurrently with the Chief Information Officer.