Final answer:
The NSC PROGRAM intervention event types include routine celebrations, scheduled maintenance, unscheduled inspections, and annual holidays.
Step-by-step explanation:
- Routine Celebrations: These are planned events recognizing achievements or milestones within the program.
- Scheduled Maintenance: These events are pre-planned to ensure the proper functioning of the program and its components.
- Unscheduled Inspections: These events occur randomly to inspect program components without any prior scheduling.
- Annual Holidays: These are the specified days each year when the program is not operational.