This document summarizes Cambodia's perspective on program/performance budgeting for an OECD budget meeting. It outlines Cambodia's 4 stage approach to budget reform, focusing on budget credibility, financial accountability, budget-policy linkages, and performance accountability. It describes progress implementing program budgeting in 25 ministries by 2016 and all ministries by 2018. Key challenges include defining clear policy objectives and program structures, developing quality indicators, and transitioning budget execution procedures to accommodate program budgeting. Next steps involve building capacity, seeking advice on moving to performance-based budgeting, and revising financial system laws.