Illinois is among the first states in the nation to pass retirement savings legislation in the form of Secure Choice. With the implementation of Secure Choice, workers in Illinois at qualifying businesses without access to an employment-based retirement plan will be automatically enrolled in a retirement savings program. An estimated 1.3 million Illinoisans who currently do not have access to workplace retirement plans will be potentially impacted by Secure Choice. As Illinois moves toward Secure Choice implementation, however, there are a number of key questions that should be answered to help ensure that the program is addressing barriers to participation, especially among low-income workers, women, immigrants, and workers of color. This research is aimed at better understanding these barriers.