This funding opportunity seeks to build on OJJDP’s history and leadership in mentoring by providing the mentoring field and practitioners with comprehensive resources and training materials on the OJJDP National Mentoring Resource Center website; convening an expert Research Board that reviews the evidence base for specific program models, populations, and outcomes; and providing training and technical assistance for OJJDP grantees to support youth mentoring programs in implementing safe, quality, and effective practices.