The Centers for Medicare and Medicaid Services (CMS) is part of the U.S. Department of Health and Human Services and is responsible for Healthcare.gov, the portal where consumers can find information and sign up for insurance plans under the Affordable Care Act. CMS turned to Amazon Web Services to launch three new features for the website, including an identity management system, a feature for comparing insurance plans, and a tool to determine eligibility for specific plans based on a consumer’s income and other variables. By using AWS, CMS has been able to deliver a stable and highly scalable set of features capable of handling hundreds of thousands of simultaneous users during peak insurance signup periods.