In September 2015, the Western Interstate Commission for Higher Education (WICHE) was awarded a First in the World (FITW) grant from the United States Department of Education. Interstate Passport® is the only nationwide network of regionally accredited, nonprofit, public and private two- and four-year institutions dedicated to the block transfer of lower-division general education credits. This study of ten Interstate Passport Network (Network) member institutions across two states finds that students who transferred among Network institutions were enrolled more continuously, earned more credits, and had slightly higher grade point averages (GPAs) than similar students who transferred into Network institutions from non-member institutions. The findings for enrollment and credit accumulation suggest that the Interstate Passport program may facilitate students' post-transfer pathways in their Network member receiving institutions. The modest GPA impact could mean that, compared to similar policies and practices, the Passport Learning Outcomes are better at preparing students for academic success after transfer. [This report was prepared by Rutgers' Education and Employment Research Center (EERC), housed within the School of Management and Labor Relations (SMLR).]