Date Event
02/07/2023AAT 144 Retest Orders Due
02/08/2023AAT 144 Retest Samples Ship​​
03/01/2023AAT 144 Retest Results Due​​​
03/02/2023AAT 145 Enrollment Deadline​ for additions that require additional AAT samples (Initial Organization​ or Analyst Applications)
03/08/2023AAT 145 Samples Ship ~03/02/23; Contact us if your samples have not been received
03/15/2023AAT 144 Retest Results Post (available online no later than this date)
04/03/2023AAT 145 Final Enrollment Deadline​ for Analyst additions requiring no additional​ AAT samples.​​​​
04/11/2023AAT 145 Results Due​​​
04/25/2023AAT 145 Results Post (available online no later than this date)
05/05/20232023 AAR Annual Invoices Due
05/09/2023AAT 145 Retest Orders Due
05/10/2023AAT 145 Retest Samples Ship
05/31/2023AAT 145 Retest Results Due​​​
06/08/2023AAT 145 Retest Results Post (available online no later than this date)

2023 AAT Deadlines