The RESCUE Act of 2023 authorizes $1.88 billion to help Ukraine and Central and Eastern European countries reduce their dependence on Russian energy and rebuild energy infrastructure damaged by Russia's invasion. The legislation directs the State Department and USAID to provide immediate assistance to Ukraine for acquiring energy resources and equipment, reconstructing energy infrastructure according to international standards, and modernizing the energy sector, with at least $1.1 billion dedicated to Ukraine and $500 million for other European countries. The bill also supports integrating Ukraine and Moldova into the European power grid, assisting with grid modernization and energy efficiency across the region, addressing environmental hazards in Ukraine, and ensuring nuclear safety at Ukrainian power plants. All assistance over $500,000 requires congressional notification at least 14 days before funds are obligated, and the bill establishes strict oversight requirements including regular reporting by inspectors general to ensure proper use of funds and compliance with international standards of governance and transparency.