Separation Standards

ATC rule #1: Don’t hit nuthin’. But to achieve that, there are rules and standards. Here’s a quick rundown on those so you can better understand what the controller needs.

maclawler

Wednesday, April 02, 2025 at 05:00 AM ET

Verified

Edited By: Omar Filipovic

Simulated screen showing different flights for transport and passengers with the world as a background

Key Takeaways:

Air Traffic Control's primary mission is to ensure aircraft separation from other traffic, terrain, and obstacles 24/7, operating under strict FAA guidelines like Order 7110.65.
ATC utilizes a diverse network of radar systems, including primary (non-cooperative), secondary (transponder-based), and modern ADS-B/WAM technologies, to identify and track aircraft through methods like discrete beacon codes.
Radar separation standards vary based on controller type and proximity to radar sites (e.g., 3-5 miles lateral, 1000 feet vertical), with the FAA proposing a "Radar Modernization Proposal" to upgrade aging systems and enhance safety and efficiency.

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Keeping you safe is a big deal for us—the biggest. Air Traffic Control exists to separate aircraft from each other, from terrain, and from obstacles. We work from dawn to dawn, 24/7, 365 days a year, watching the skies and making decisions that protect you in our National Airspace System (NAS).

We have tools and rules to accomplish this? That control is based on many factors, including radar procedures, non-radar procedures, rules and regulations, plus a strong infrastructure that supports each of these techniques.