Data Assurance

Certain financial data presented in this report was audited for disclosure in the Booz Allen FY23 Annual Report on Form 10-K. Our FY23 greenhouse gas (GHG) emissions data have been third-party verified by Apex Companies LLC with reasonable assurance regarding Scope 1 and Scope 2 GHG emissions and limited assurance regarding Scope 3 GHG emissions in accordance with the International Organization for Standardization (ISO) 14064-3, the World Resources Institute (WRI)/ World Business Council for Sustainable Development (WBCSD) Greenhouse Gas (GHG) Protocol Corporate Accounting and Reporting Standard (Scope 1 and Scope 2), and the WRI/WBCSD Greenhouse Gas Protocol Corporate Value Chain (Scope 3) Accounting and Reporting Standard (Scope 3) GHG reporting protocols. Where applicable, data measurement tools, methods, and calculations are included in footnotes and/or other visual guides.