College completion, earning a degree or certificate, is considered to be a key college success outcome, supported by every educational policymaker. Yet, institutions and policymakers in the U.S. know surprisingly little about the rates of completion for students who follow all but the most traditional of postsecondary pathways. This is because traditional graduation rate calculations are institution based and only count students who finish at the same institution where they started. Building on findings from previous reports in the National Student Clearinghouse Research Center's "Signature Report" series, this new report measures this key college success outcome - rates of first completion - encompassing postsecondary credentials of all levels and types at any institution in any state, whether it is the first, second, third, or more, attended. It draws on the Clearinghouse database's near-census national coverage of enrollments and awarded degrees to explore the six-year outcomes of a cohort of first-time-in-college degree-seeking students who started in fall 2006 (N=1,878,484). Specifically, the report examines: (1) Six-year college outcomes, including the first instance of degree or certificate completion (first completion), persistence, and stop-out; (2) Six-year college outcomes for students who started at four-year public institutions, at two-year public institutions, at four-year private nonprofit institutions, and at four-year private for-profit institutions; and (3) Patterns of completion across state lines, broken out by students' enrollment intensity, students' age at first entry, and enrollment intensity within each age group.