; and (ii) receives compensation in any way related to the sale of air transportation. (2) Large ticket agent The term large ticket agent means a ticket agent with annual revenues of $100,000,000 or more. 536. FAA data transparency Section 45303 of title 49, United States Code, is amended by adding at the end the following: (g) Data transparency (1) Air traffic services initial data report (A) Initial report Not later than 6 months after the date of enactment of the FAA Reauthorization Act of 2018 , the Administrator and the Chief Operating Officer of the Air Traffic Organization shall, based upon the most recently available full fiscal year data, complete the following calculations for each segment of air traffic services users: (i) The total costs allocable to the use of air traffic services for that segment during such fiscal year. (ii) The total revenues received from that segment during such fiscal year. (B) Validation of model (i) Review and determination Not later than 3 months after completion of the initial report required under subparagraph (A), the Inspector General of the Department of Transportation shall review and determine the validity of the model used by the Administrator and the Chief Operating Officer to complete the calculations required under subparagraph (A). (ii) Validation process In the event that the Inspector General determines that the model used by the Administrator and the Chief Operating Officer to complete the calculations required by subparagraph (A) is not valid— (I) the Inspector General shall provide the Administrator and Chief Operating Officer recommendations on how to revise the model; (II) the Administrator and the Chief Operating Officer shall complete the calculations required by subparagraph (A) utilizing the revised model and resubmit the revised initial report required under subparagraph (A) to the Inspector General