The Federal Aviation Administration (FAA) and the National Air Traffic Controllers Association, AFL-CIO (NATCA) have reached a tentative deal on a new collective bargaining agreement (CBA).
The CBA will maintain stability and ensure continued collaboration for employees supplying air transportation systems worldwide.
It covers air traffic controllers assigned to the terminal and en route options, traffic management coordinators, and notice to airmen specialists (NOTAMS).
The agreement follows an effective interest-based bargaining process that commenced in January.
FAA chief operating officer Teri Bristol said: "Together, NATCA and the FAA have continued to work successfully on safety and modernisation, labour relations, professional standards, training, and many other important issues.
"These interest-based negotiations have reflected that same commitment to successful collaboration."
Extended in 2012, the existing collective bargaining agreement was signed in 2009.
The CBA is expected to be completed by mid-July and will be sent by NATCA to its members for a ratification vote.
NATCA president Paul Rinaldi said: "This agreement was achieved through a collaborative process, building upon our successful working relationships at all levels of the FAA and NATCA.
"This agreement recognises the vital role that NATCA members play in meeting the FAA’s mission to ensure that the US airspace is the safest and most efficient system in the world."