Welcome to CTAT Online! If you have been at our site before you may notice a new look and the menus look a little different. Please "look around" and familiarize yourself. If you are having any trouble opening a segment, go to the top left hand corner to the little "padlock" by the URL https://www.ctatonline.org and make sure that popups, notifications and FLASH are allowed. Please email me at firstname.lastname@example.org if you have any issues!