Dual enrollment programs offer high school students the chance to enroll in college courses and earn transferable college credit while they are still pursuing a high school diploma. Research shows that dual enrollment participants are more likely to enroll and persist in college, earn higher GPAs during college, and accumulate more college credit. Maryland's College and Career Act of 2013 recognized the potential of these opportunities and called for the expansion of dual enrollment in the state. According to a December 2016 report to the Maryland General Assembly, however, only 2% of Baltimore City public 12th grade students participated in dual enrollment opportunities in 2015, as compared with a state average of 11%. In this executive summary, the author begins to answer those questions about access and opportunity. The report, "Dual Enrollment in Maryland and Baltimore City: An Examination of Program Components and Design" traces the variations in dual enrollment implementation across four Maryland school districts. By examining funding arrangements, eligibility requirements, student support services, and communication strategies, the author examines the factors involved in producing such unequal enrollment patterns. [To read the full report, see ED576183.]