Here's what might happen if you don't have your REAL ID when you travel. A flyer produced by Massachusetts Department of Transportation to encourage travelers to apply for REAL IDs.

As of May 7, a Real ID-compliant license is needed to fly within the U.S. But you can use other options like a passport or enhanced driver's license.

I don't have a REAL ID–compliant driver's license and don't plan to get one. I figure if the federal government wants to implement internal passports in the U.S., which after 20 years of ...

As of May 7, a Real ID-compliant license is needed to fly within the U.S. But you can use other options like a passport or enhanced driver's license.

It’s the first holiday with Real ID in effect — but so far, many travelers said they really didn’t have any problems.

Since May 7 has already passed, depending on when you're reading this, that paragraph might be worrying. Here's what might happen if you don't have your REAL ID when you travel.