This primer aims to provide clear lessons and recommendations to help service delivery organizations and program managers establish, implement, and strengthen contracting arrangements. The primer draws on Marie Stopes International’s experience of delivering government-contracted services in Bangladesh, India, and South Africa. The lessons and recommendations in this primer are limited to MSI programs that involve formal contracts. This primer serves as a companion to Filling the Gap: Lessons for Policymakers and Donors on Contracting Out Family Planning and Reproductive Health Services.