Back in June, Apple issued a recall of approximately 460,000 15-inch MacBook Pro laptops sold between September 2015 and February 2017, stating that “the battery may overheat and pose a fire safety risk.” Now, Bloomberg reports that the U.S. Federal Aviation Administration (FAA) has warned airlines to ban those batteries from flights.

Technically, airlines could have started banning the laptops as soon as Apple issued the recall, since 2016 airline safety instructions mandate that all recalled batteries may not fly as cargo or in carry-on baggage. The FAA has essentially alerted them to the recall and reminded them about the existing rules.

The European Union Aviation Safety Agency banned the laptops in early August, which has been implemented so far by TUI Group Airlines, Thomas Cook Airlines, Air Italy, and Air Transat. Domestic airlines in the U.S. are now following suit, so it’s worth finding out if your laptop battery is part of the recall if you have plans to fly soon. Even if you don’t have any current travel plans, it’s a good opportunity to get your recalled battery replaced—which Apple will do for free.

Fast Company outlines exactly how to check your device: Click the Apple icon in the upper left corner of your screen, and tap “About This Mac.” If you see “MacBook Pro (Retina, 15 inch, Mid 2015)” or a similar description, copy the serial number, and paste it into the box under the “Eligibility” section on this page. If your laptop was affected, scroll down and follow the directions to make an appointment for a replacement battery.

Once your battery is replaced, you’re free to fly with your MacBook; just make sure to bring documentation of your battery replacement to the airport, in case officials ask for proof.

[h/t Bloomberg]