This bill would allow health insurance companies to sell individual health insurance across state lines by picking one "primary state" where they're regulated, while being largely exempt from the insurance rules of other "secondary states" where they sell policies. Think of it like a company choosing to follow California's rules everywhere, even when selling to people in New York.

Here's how it would work in practice: An insurance company would pick one state as its home base and follow that state's insurance laws. When it sells policies in other states, those other states couldn't enforce most of their own insurance rules on that company—they could only require things like taxes, registration, and fraud prevention. This is meant to make insurance cheaper and easier to sell across state lines, similar to how risk-retention groups currently operate. However, the bill requires insurance companies to give customers a clear warning that their policy may not have all the protections and benefits required by the state where they live.

The bill includes some important protections: Insurance companies can't change rates based on a customer's health status when renewing a policy, they must follow fraud and unfair claims practices laws, and they need independent medical reviewers to handle disputes about denied claims. States can still take action if an insurance company is in financial trouble or breaking fraud laws. The government would study the effects for five years to see if this actually makes insurance more affordable and available, especially for people with pre-existing conditions.