TransferBOOST (Bachelor's Opportunity Options that are Straightforward and Transparent) is a multi-year state-level initiative developed to provide students with affordable, quality, well-supported two- to four-year pathways. For every 100 students who enroll in community colleges, 31 students transfer to a four-year institution. Of those, only 15 complete a bachelor's degree within six years. Too many students are derailed from their higher education goals by unexpected, unaffordable, and untenable--yet solvable--challenges along their transfer journey. A key element of TransferBOOST was the student-centered, data-informed, and equity-driven partnership between community colleges and four-year institutions. The first brief in the series showcases key policy and practice takeaways from the initiative. [For "BOOSTing Transfer Pathways through Strategic Finance and Affordability," see ED628751. For "BOOSTing Student Success through Equitable and Affordable Transfer Pathways: Lessons Learned for Higher Education Policymakers and Practitioners from the TransferBOOST Initiative," see ED628654.]