This bill, known as the "CLEAR Skies Act," establishes a new tax credit under the Internal Revenue Code to incentivize the domestic production of aviation gasoline free of tetra-ethyl-lead . This credit, effective for fuel sold between 2026 and 2030, aims to promote cleaner aviation fuels by offering a per-gallon incentive that decreases annually, starting at $1.25 in 2026 and reaching $1.05 by 2030. To qualify, the aviation gasoline must be produced in the United States, meet specific aviation fuel standards, and be certified as lead-free. Producers must register with the Secretary to claim this credit, which is designed to encourage the transition away from leaded fuels. Additionally, the bill mandates a study by the Comptroller General to assess the unleaded aviation gas market, including price differentials and the credit's effectiveness in passing cost savings to consumers. A report detailing these findings and recommendations must be submitted to Congress within one year of the bill's enactment.