A CLEAR Plus membership is typically good for one year from the date of enrollment. CLEAR is a biometric identity platform that allows travelers to skip the standard document check at airport security by using their eyes or fingerprints to verify their identity. The membership is subscription-based, meaning it will automatically renew annually unless you cancel it. For those who travel frequently within the United States, CLEAR can be combined with TSA PreCheck to provide the fastest possible path through security. It is important to note that while the "Plus" membership is for airports, CLEAR also offers a free "Basic" version for entry into certain sports stadiums and concert venues, which does not expire in the same way but has limited utility. Many premium credit cards, such as the American Express Platinum, offer a statement credit that covers the full annual cost of CLEAR Plus, effectively making it "good" for as long as you hold the card. If you are a member of Delta SkyMiles or United MileagePlus, you can also often get a discounted rate, though the one-year term remains the standard duration for the service agreement.