Competency-based education (CBE) is widely viewed as an innovative alternative to traditional higher education, yet most programs serve only a narrow slice of the postsecondary population. Few are intended for adults who need to boost basic skills in order to succeed in college coursework. However, if designed with the needs of a broader range of learners in mind, CBE could be an important piece of the national movement to increase educational access, equity, and credential attainment. This paper is part of a series that recommends specific features likely to help more underprepared students in competency-based education (CBE) settings master college-ready skills, persist in their postsecondary studies, and ultimately earn credentials. Success depends heavily on providing individualized support services to address both academic and non-academic difficulties. This report recommends a comprehensive set of proven supports that can make the difference in a CBE model of remedial education. This paper concludes the series by profiling four of the most well-researched approaches to student support in developmental education: (1) personalized coaching; (2) college success classes; (3) monetary incentives; and (4) comprehensive support systems, a strategy that features several interrelated elements. Contains endnotes.