What document prescribes air traffic procedures used by en route and terminal controllers?

The document that prescribes air traffic procedures utilized by en route and terminal controllers is 7110.65. This publication, known as the "Air Traffic Control" order, provides comprehensive guidance on vectors, altitudes, separation, and other operational procedures that controllers must follow to ensure safe and efficient air traffic management. It serves as a foundational reference for air traffic control operations across various scenarios, detailing the standard practices that controllers need to adhere to during their duties.

FAA Order 8900.1 focuses on flight standards, including the oversight of certification and operational requirements for various aviation entities, while AC 150/5370 pertains to airport design and construction criteria. Order 1750.2 centers around aviation safety and risk management processes rather than specific air traffic control procedures. Therefore, while each of these documents plays an important role in aviation operations and safety, 7110.65 is specifically targeted at the procedural framework for air traffic controllers.