Knowing that the majority of dual enrollment courses are taught on high school campuses by high school instructors, it is critical that mechanisms are in place to ensure the quality of the curriculum and the many components surrounding the curriculum--including textbooks, learning outcomes, course syllabuses, assignments, grading practices, periodic assessments and final exams, etc. It is also essential that colleges ensure high school instructors have a clear grounding in the curriculum and these course components, and have the knowledge and skills necessary to deliver postsecondary-level content. This report explores some of the reasons for the increase in delivery of dual enrollment courses at high schools, and the importance of ensuring course and instructor quality. The report then examines four distinct state approaches to ensuring dual enrollment course and instructor quality, noting the potential benefits and tradeoffs of each. The document includes an appendix detailing the National Alliance of Concurrent Enrollment Partnerships (NACEP) Concurrent Enrollment Partnership Standards.