Certification Not later than 15 days prior to the initial obligation of funds appropriated by this Act and made available for assistance for Ukraine under the headings Economic Support Fund , Assistance for Europe, Eurasia and Central Asia , International Narcotics Control and Law Enforcement , Nonproliferation, Anti-terrorism, Demining and Related Programs , and Foreign Military Financing Program , the Secretary of State and the USAID Administrator shall jointly certify and report to the appropriate congressional committees that mechanisms for monitoring and oversight of funds are in place and functioning to ensure accountability of such funds to prevent waste, fraud, abuse, diversion, and corruption, including mechanisms such as use of third party monitors, enhanced end-use monitoring, external and independent audits and evaluations, randomized spot checks, and regular reporting on outcomes achieved and progress made toward stated program objectives, consistent with the strategy required by section 504 of this title: Provided , That section 7015(e) of Public Law 118–47 shall apply to the certification requirement of this subsection. (c) Cost Matching Funds appropriated by this Act and prior Acts for fiscal year 2024 under the headings Economic Support Fund and Assistance for Europe, Eurasia and Central Asia that are made available for contributions to the Government of Ukraine may not exceed 50 percent of the total amount provided for such assistance by all donors: Provided , That the President may waive the limitation in this subsection if the President determines and reports to the appropriate congressional committees that to do so is in the national security interest of the United States, including a detailed justification for such determination and an explanation as to why other donors to the Government of Ukraine are unable to meet or exceed such level: Provided further , That following such determination, the President shall submit a report to the Speaker and Minority Leader of the House of