If you're using a driver's license or ID card to fly within the U.S., those will need to be REAL ID-compliant starting in less than 24 hours.
But in order to get one, you'll have to show other documents, including two forms of proof of address at your principal residence, according to the Department of Homeland Security. "States may impose additional requirements, so check with your state's driver's licensing agency website, before visiting them in person, for additional guidance and assistance," the agency said on its website.
Those without REAL IDs risk being unable to fly, though alternatives such as a passport will still be accepted.
If you recently moved, that can add a wrinkle to the process. Here's what to know before the enforcement deadline takes effect on May 7.
The Transportation Security Administration referred USA TODAY's request for comment to state departments of motor vehicles.
Tennessee, for example, requires two proofs of state residency, such as a utility bill, rental or mortgage contract, or others. "All documents are required to be current, issued within the past four (4) months," the state's Department of Safety and Homeland Security said on its website. "Internal Revenue Service documents must be from the current tax year."
Documents are also subject to verification with the source where they were issued. Applicants who are transferring their license from certain other states also need to request a Motor Vehicle Record.
In New Hampshire, certain proof of residency documents like a month-to-month lease or employment contract must be dated within the previous 60 days, according to the state's Division of Motor Vehicles. Specific rules and guidance can vary depending on where you live, so it's best to check with your local issuing agency ahead of time.
Nathan Diller is a consumer travel reporter for USA TODAY based in Nashville. You can reach him at ndiller@usatoday.com.