Final answer:
The Affordable Care Act mandates individuals to have health insurance and created state marketplaces for insurance plans.
Step-by-step explanation:
The Affordable Care Act (ACA) mandates that every individual have some form of health insurance. This law was passed by the US Congress in 2010 and is commonly known as Obamacare. The ACA requires individuals to buy insurance or face a penalty, and it also created state marketplaces where insurance plans can be purchased.