Grade 9 Recertification
Grade 9 referees may recertify and register online for 2015. You will complete your referee Risk Management and USSF Registration and pay your fees online with either Visa or Mastercard. Passing the online recertification test with a score of 80% or higher will complete the process. If you were registered in 2012 or 2013, but not 2014 you may recertify for 2015; however, you may not referee prior to Jan 1, 2015. Grade 9 referees who are at least 13 years of age should consider upgrade through a Grade 8 clinic rather than recertification.
https://ntxreferees.gameofficials.net/public/class/classSearch.cfm?classTypeID=202

Grade 8 Recertification
Grade 8 referees may recertify and register online for 2015. The link to GameOfficials requires you to log-into GameOfficials.net You will complete your referee Risk Management and USSF Registration while paying your fees online with either Visa or Mastercard. Passing the online recertification test with a score of 85% or higher will complete the process. If you were registered in 2012 or 2013, but not 2014 you may still recertify for 2015; however, you may not referee prior to Jan 1, 2015. 
https://ntxreferees.gameofficials.net/public/class/classSearch.cfm?classTypeID=112

Grade 7 Re-certification Exam and Registration
Re-certification exam for Grade 7 referees who are not taking the physical fitness test or requesting assessments. Score required is 90%. Fee is $55 and includes only the registration and insurance and administrative fees.
https://ntxreferees.gameofficials.net/public/class/classSearch.cfm?classTypeID=421

Grade 7 Online Upgrade (2016 Registration)
Currently registered Grade 8 referees may complete this course to upgrade to Grade 7 beginning July 23, 2015 for the 2016 registration year. Upon upgrade to Grade 7, referees with at least one year in grade are eligible for the Distinguished Grade 7 Course. The only fee paid for this course is the annual recertification fee, insurance and administrative fee.
https://ntxreferees.gameofficials.net/public/class/classSearch.cfm?classTypeID=941