The icons show if the GTA is 'Compliant' (Green), or 'Non-Compliant' (Red). 'Currently Working' (Grey) means that the GTA is compliant and working elsewhere within Keystone i.e. King's Talent Bank. You can prompt an individual GTA to complete their Right to Work check, by clicking on their profile and clicking on the 'Request Documents' button. King's Teachers then send the GTA an email reminder.