First, check that your membership has not expired by looking up your KTN (Known Traveler Number) here. You can also confirm your airline participates in the TSA PreCheck® program, by clicking here.
If your KTN is still active, confirm with your airline that your KTN, name, and date of birth are accurate.
If you still do not have a TSA PreCheck® indicator on your boarding pass, or if you have questions concerning your TSA PreCheck® status, we're here to assist you. You can reach out to us through X (Twitter @AskTSA), Facebook Messenger (http://www.fb.com/AskTSA), Apple Business Chat or by texting "Travel" to AskTSA (275-872). You can also contact the TSA Contact Center at (866) 289-9673 or fill out an online form. If you received a notice of violation, please contact your case agent.