As reported by Censor.NET citing Ukrainski Novyny, this is stipulated by the Cabinet's ordinance No.1086 dated Oct. 19.
The Open Skies agreement was signed in Washington, D.C. on July 14 by U.S. Under Secretary for Economic Growth, Energy, and the Environment Catherine A. Novelli and Ukrainian Infrastructure Minister Andrii Pyvovarskyi.
Open Skies agreements promote increased travel and trade, enhance productivity, and spur high-quality job opportunities and economic growth, the U.S. Department of State informs.
They serve to eliminate government interference in commercial airline decisions about routes, capacity, and pricing and allow carriers to provide more affordable, convenient, and efficient air service for consumers. The United States has reached Open Skies agreements with more than 115 partners from every region of the world.