; and (ii) in the event the Administrator cannot respond within 30 days, that the Administrator informs the air carrier of the expected response time with respect to the application of the air carrier. (B) Rejection In the event that the Administrator rejects an application of an air carrier, the Administrator shall inform the air carrier of the specific criteria that were the cause for rejection. . (b) Effective date The amendments made by this section shall take effect on the date that is 12 months after the date of enactment of this Act. 340. Study on FAA use of mandatory Equal Access to Justice Act waivers (a) In general The Comptroller General shall conduct a study on the use of waivers of rights by the Administrator that may arise under section 504 of title 5, United States Code, or section 2412 of title 28, United States Code, as a condition for the settlement of any proceedings to amend, modify, suspend, or revoke an airman certificate or to impose a civil penalty on a flight engineer, mechanic, pilot, or repairman (or an individual acting in the capacity of such engineer, mechanic, pilot, or repairman). (b) Considerations In conducting the study under subsection (a), the Comptroller General shall consider— (1) the frequency of the use of waivers by the Administrator described in this section; (2) the benefits and consequences of the use of such waivers to both the Administrator and the certificate holder