The number of high schools offering dual enrollment or concurrent enrollment courses has grown significantly over the past decade. However, gaps in student access and participation persist. This report from the Southern Regional Education Board (SREB) and the Midwestern Higher Education Compact examines how the use of open educational resources, or OER, can make dual enrollment courses more cost-effective and increase college access for more students. The report provides an overview of policies across 50 states and recommendations on OER adoption and usage. It includes case studies from Colorado, Florida, Georgia, Louisiana, Tennessee and Texas.