Officially known as the Affordable Care Act (ACA), its main goal is to expand access to affordable health insurance, improve the quality of health care, and reduce health care costs. The law prohibits discrimination based on preexisting conditions, expands Medicaid in some states, and creates the Health Insurance Marketplace, where people can compare and purchase plans. It also offers income-based subsidies to reduce the cost of premiums. Obamacare seeks to guarantee essential coverage for all and promote a more accessible and equitable health care system.