MCO 3504.2A governs Marine Corps operations event and incident reporting through the OPREP-3 reporting structure.
View MCO 3504.2A on armypubs.army.mil
It covers report categories, reportable events and incidents, contact information, message formats, and sample reports. It requires synchronous and asynchronous reporting for OPREP-3 SIR events, including a voice report and an asynchronous message.
Provide a voice report to the MCOC within 30 minutes of any event or incident, or within 30 minutes of becoming aware of any event or incident, reportable under this directive. (paragraph 2)
The initial synchronous (voice) report does not alleviate the requirement to submit an asynchronous (message) report. Both reports are required. (paragraph 2)
The time standard for WHITE PINNACLE exercises is 20 minutes. (paragraph 3)