13 pages., Article # 6FEA1, via online journal., Professionals in Extension who develop intercultural competence are better prepared to meet the needs of multicultural populations. This article addresses University of California Extension's formation of an intercultural competence professional development initiative. We describe our use of an integrated conceptual framework that includes Hammer's Intercultural Development Inventory (IDI) and Kotter's eight-step organizational change process to institutionalize the initiative. IDI pretest and posttest results indicate that California 4-H professionals are more culturally competent. The impact of the initiative also is reflected in the significant growth (151% increase) in Latino youth participation in 4-H. We provide recommendations for replicating our effort.