Changes to the health care system under the Affordable Care Act (ACA) are having wide-ranging impacts on health coverage and provision of care to men and women across the United States. Guttmacher studies the ACA’s impact on reproductive health coverage and access, with a particular focus on the federal contraceptive coverage guarantee, which has eliminated cost barriers that could impede women’s ability to obtain the method that is best for them. The Institute also focuses on identifying vulnerable populations, such as many immigrants, who are not fully benefiting from the ACA.