This fact sheet uses data from the 2017-18 Civil Rights Data Collection (CRDC) to explore information about dual enrollment and Advanced Placement (AP) exam participation for students enrolled in grades nine to 12. This fact sheet is a complement to an August 2021 fact sheet [ED616295] that covered AP and IB course-taking using the same CRDC data. The CRDC is a biennial survey administered by the U.S. Department of Education's Office for Civil Rights. Credits earned through dual enrollment courses and/or AP exams may reduce students' postsecondary course load or shorten their time to earn a degree. Dual enrollment/dual credit programs provide opportunities for high school students to take college-level courses and earn concurrent credit toward a high school diploma and a college degree. Only schools that serve students in grades nine through 12 offer dual enrollment courses, and not all such schools do offer them. However, a majority of students in grades nine through 12 (75%) attend a school that offers dual-enrollment options.