TSA lines are growing amid a shutdown, but travelers say TSA PreCheck Touchless ID helps them skip waits.

If you already have TSA PreCheck, there’s another option that can make the ID check itself quicker with select airlines: TSA PreCheck Touchless ID.

There are currently five services that grant quicker passage through U.S. airport security. Here are the pros and cons of each.

TSA PreCheck is a trusted traveler program that allows approved passengers to use expedited security lanes at participating U.S. airports. Travelers in PreCheck lanes typically do not need to remove shoes, belts, light jackets, laptops or compliant liquids during screening.

And a lack of funding has prompted staffing shortages and long lines at airports, as TSA agents struggle to keep up. This has lead to frustrating experiences for travelers, who say that they’ve been forced to spend hours in line during this partial shutdown,

TSA PreCheck Touchless ID takes seconds to set up and can save you from long lines. But you need to enroll before you get to the airport.

TSA’s new Touchless ID lane uses facial recognition to speed you through security. Here’s how it works, where it’s available, and what to know before you fly.