How can I opt-in for TSA PreCheck™ as a DoD Civilian?

DoD federal civilian employees must opt-in to TSA PreCheck™ by visiting the milConnect website. After selecting the “My Profile” and the “CIV” menu tab when logged into the website, users will be guided through the opt-in process for TSA PreCheck™. Civilian employees need to opt-in only once. Members of the U.S. Armed Forces do not need to opt-in.