Final answer:
Three federally regulated areas of insurance include coverage for the uninsured, coverage for preexisting conditions, and the employer and individual mandates from the Affordable Care Act.
Step-by-step explanation:
Although insurance is primarily regulated on the state level, there are three areas that are overseen federally. These areas include coverage for the uninsured, coverage for individuals with preexisting conditions, and the mandates outlined in the Affordable Care Act (ACA), such as the employer and individual mandates. The employer mandate requires employers to offer health insurance, while the individual mandate requires people to purchase health insurance, with penalties for those who do not conform. Given recent political changes and debates around national healthcare policy, elements of the ACA, such as these federal mandates, have faced potential repeal or significant alterations.