Driver’s licenses from New York, Louisiana, Minnesota, New Hampshire, and the American Samoa will no longer be enough to get on a domestic commercial flight.

If You’re From One of These Four States, You’ll Likely Need a Passport for a Domestic Flight

Starting in 2016, travelers from four U.S. states will not be able to use their driver’s licenses as ID to board domestic flights—a pretty major development considering an estimated 62 percent of Americans don’t have passports.

The standard licenses from New York, Louisiana, Minnesota, New Hampshire, and American Samoa are considered “noncompliant” with the security standards outlined in the Real ID Act, which was enacted back in 2005 but is being implemented in stages. Why are these specific licenses deemed sub-par? In these five places, getting a license doesn't require proof of citizenship or residency.

The new rules will go into effect sometime in 2016 (the exact date has not been announced), and there will be a three-month forgiveness period, during which people with these licenses will be warned that their IDs are no longer valid for flights.

Update: New Yorkers have at least another year before their licenses will no longer be valid.

Here’s the breakdown: if you're from one of these states, “acceptable” IDs include passports and passport cards, as well as permanent resident cards, U.S. military ID, and DHS trusted traveler cards such a Global Entry and NEXUS.

The TSA will also accept Enhanced Driver’s Licenses, the kind that are currently used to replace passports for travel to and from Canada, Mexico, and the Caribbean. Of the noncompliant states, only New York and Minnesota issue enhanced licenses.