The TSA instituted requirement that face masks be worn on transportation in the United States on February 1. It was supposed to expire on May 11.

The face mask requirement has now been extended through September 13 according to a press release from the TSA.

According to TSA.gov, “the face mask requirement is for individuals across all transportation networks throughout the United States, including at airports, onboard commercial aircraft, on over-the-road buses, and on commuter bus and rail systems.”

For those who don’t follow and wear a face mask, the penalty can be pretty steep. The fines start at $250 and go to $1,500 for repeat offenders.

There are still exemptions for travelers under the age of two years old as well as for people with certain disabilities.

While going through security at the airport, the TSA will ask you to lower your face mask to confirm your identity. If you show up without a mask, you’ll be asked to get one. If you refuse to get/ wear a face mask, you will not be allowed to enter the secure area of the airport. So if you refuse, you won’t be flying anywhere…

Find out more about the TSA’s extension of the face transportation requirement here.