More than a decade after its enactment, tens of millions of people nationwide rely on coverage options created through the Affordable Care Act of 2010 (ACA). The law has survived multiple court challeges at the U.S. Supreme Court and repeated attempts by Republicans in Congress to repeal it. Subsequent legislation has scaled back some aspects of the law and expanded others, including by the COVID-19 relief bill, the American Response Plan Act of 2021. This page highlights relevant analysis about the ACA and proposed and enacted changes to it..

For information about ACA Marketplace Open Enrollment, including fact sheets and 300+ FAQs, visit our collection of resources on Understanding Health Insurance.

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Visualizing Health Policy: Health Coverage Under the Affordable Care Act (ACA)

Related ResourcesStudy Highlights Role of Geography and Plan Shopping Under Medicare Premium Support SystemMedicare Part D: A First Look at Part D Plan Offerings in 2013The Medicare Prescription Drug Benefit – An Updated Fact SheetOnline Consumer Guide to Medicare The latest Visualizing Health Policy infographic is a flowchart illustrating the mechanisms…

Medicaid Eligibility, Enrollment Simplification, and Coordination under the Affordable Care Act: A Summary of CMS’s March 23, 2012 Final Rule

This brief provides a summary of the Centers for Medicare and Medicaid Services’ (CMS) March 23, 2012 final rule to implement the ACA provisions relating to Medicaid eligibility, enrollment simplification and coordination. The rule, which is effective Jan. 1, 2014, lays out procedures for states to implement the Medicaid expansion…

Quick Take: An Update on the ACA & HIV: Medicaid Health Homes

We recently wrote about the different ways in which the Affordable Care Act (ACA) changes pathways to health insurance coverage for people with HIV, and chronicled these specifics, as well as several outstanding questions, in a policy brief.  As we noted, among the many provisions of the ACA designed to…

Pulling it Together: How the ACA Can Help The Homeless

Estimates are that there are approximately 630,000 people who are homeless on any given night in the U.S. — about two-thirds in shelters and one-third on the street or without real shelter. Several million people are estimated to experience homelessness over the course of a year. About two-thirds are individuals and the…

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