From the link...
"A legible copy of your Control Tower Operator (CTO) license (Please include a copy of both the front & back of the license). If applicable provide a copy of your SF-50, Notification of Personnel Action, indicating your initial appointment to the FAA or DoD as an Air Traffic Control Specialist prior to your 31st birthdate. SUPPORTING REQUIRED DOCUMENTS MUST BE RECEIVED WITHIN 14 DAYS OF APPLICATION WITH AAC-AAT-09-CTO. Documentation can be faxed to (405) 954-5766 or (405) 954-6393."
How does one go about getting a CTO license prior to applying foir this job?