If you received a Certificate of Attendance and need to re-take the GHSGT to receive your high school diploma, you will need to pre-register 3 weeks prior to the scheduled test date. Please complete the pre-registration form and turn it into Jackson High School's front office. Please address the form to Melissa Griffin. The form can be found by clicking on Guidance under the Social tab on the main page. Click on the forms link and select GHSGT& GHSWT Pre-Registration Form.