Plain English Meaning

This isn't really one term. It's two FAA facility names that got run together. The ARTCC is the regional center that handles your flight while you're cruising between airports. The ATCSCC is the single national headquarters that manages traffic flow across the whole country, especially during weather or congestion.

Full Definition

ARTCSCC is not a standard FAA acronym. In the Instrument Procedures Handbook, Figure 5-5 illustrates the relationship between two distinct facilities: the Air Route Traffic Control Center (ARTCC), which is a regional facility that controls aircraft flying under instrument flight rules in the en route phase within a defined airspace, and the Air Traffic Control System Command Center (ATCSCC), which is the national-level facility that manages the overall flow of across the entire . The string 'ARTCSCC' likely results from these two adjacent labels in the figure being captured together during text extraction.