What is the time objective for an IMMEDIATE message?

The time objective for an IMMEDIATE message is indeed 30 minutes. This designation indicates that the message is of a priority that requires timely action and response, but it is not as critical as an urgent message, which typically has an even more stringent time requirement. The 30-minute time objective allows for swift processing and dissemination while recognizing operational realities that may delay immediate action. Understanding this timeframe is essential for effective communication and operational readiness within military contexts.