The CLEAR Skies Act (H.R. 2932) adds a new §45BB to the Internal Revenue Code that provides a per‑gallon tax credit for production and sale of tetra‑ethyl‑lead‑free aviation gasoline (avgas) produced in the United States and certified by the Treasury in consultation with the Department of Transportation. The credit is scheduled on a declining per‑gallon scale from $1.25 in 2026 to $1.05 in 2030 and terminates at the end of 2030; it is folded into the general business credit.
Producers must register under the tax code’s fuel producer rules and obtain a DOT‑prescribed certification to claim the credit.
The bill also requires the Government Accountability Office to study price differentials between leaded and unleaded avgas, drivers of those differentials, whether producer credits are passed through to consumers, and market share projections, with a report due one year after enactment. For stakeholders in general aviation, fuel manufacturing, and airport operations, the measure creates a time‑limited federal subsidy aimed at accelerating the market for unleaded avgas while creating new compliance and certification obligations for producers and fuel sellers.
At a Glance
What It Does
Establishes a per‑gallon producer tax credit for certified, U.S.‑produced aviation gasoline that is free of tetra‑ethyl‑lead; the credit rate is set annually from 2026–2030 and the program sunsets after 2030. The credit is claimable as part of the general business credit once a producer registers under section 4101 and provides DOT‑prescribed certification.
Who It Affects
Domestic refiners and fuel producers who manufacture avgas, fixed base operators (FBOs) and retailers that dispense fuel into aircraft tanks, owners/operators of piston‑engine aircraft, and the Treasury because of the forgone revenue. The Department of Transportation and IRS will have coordination responsibilities for certification and guidance.
Why It Matters
This is a targeted federal subsidy specifically tied to unleaded avgas production that could speed adoption of unleaded alternatives and reduce lead emissions near airports, while creating new tax and regulatory compliance pathways for fuel producers and distributors. The required GAO study signals congressional interest in monitoring price pass‑through and market effects.
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What This Bill Actually Does
H.R. 2932 creates a temporary, per‑gallon tax incentive aimed at increasing U.S. production of unleaded aviation gasoline. The statute defines 'qualified aviation gasoline' by cross‑reference to a Code of Federal Regulations definition, requires the fuel to be free of tetra‑ethyl‑lead, and ties eligibility to meeting aviation fuel standards under federal aviation law.
Producers claim the credit by multiplying gallons of qualifying fuel sold by a fixed dollar amount that declines each year between 2026 and 2030.
The bill limits eligibility to fuel produced in the United States and transferred into aircraft fuel tanks within the U.S., and it restricts qualifying sales to transactions with unrelated purchasers either using the fuel in a trade or business or retail sellers who place fuel into another person’s aircraft tank. To deter misuse, producers must be registered under the tax code’s fuel producer registration regime and must provide certification — in a form the Treasury will develop after consulting the Department of Transportation — that the fuel satisfies the statutory qualifications.Administratively, the Secretary of the Treasury must issue regulations and guidance within 180 days of enactment (after DOT consultation).
The credit is incorporated into the general business credit framework, which affects how taxpayers claim and utilize the credit. The statutory program takes effect for fuel sold or used after December 31, 2025, and ends for sales after December 31, 2030.Separate from the tax incentive, the bill requires the Comptroller General to study the market for unleaded avgas: the GAO must analyze the consumer price gap between leaded and unleaded avgas, the drivers of that gap, whether producer incentives result in lower retail prices, and projections for unleaded market share, then report to Congress within one year.
That study is designed to inform whether the statutory incentive should be altered to increase consumer pass‑through and accelerate market transition.
The Five Things You Need to Know
The credit equals the number of gallons of qualified unleaded avgas a taxpayer produces and sells (subject to certification) multiplied by an annual per‑gallon rate: $1.25 (2026), $1.20 (2027), $1.15 (2028), $1.10 (2029), and $1.05 (2030).
A producer must be registered under section 4101 of the Internal Revenue Code and must provide DOT‑prescribed certification proving the fuel is 'qualified aviation gasoline' to claim the credit.
Qualified aviation gasoline must (per the bill) match the referenced CFR definition, be free of tetra‑ethyl‑lead, comply with aviation fuel standards under 49 U.S.C. §44714, be produced in the United States, and be transferred into an aircraft fuel tank within the United States.
Only sales to unrelated persons qualify: either sales to purchasers who use the fuel in a trade or business or sales to retailers who dispense the fuel into another person’s aircraft tank at retail.
The GAO must complete and deliver a one‑year report on price differentials between leaded and unleaded avgas, drivers of those differences, pass‑through of any credit to consumers, recommendations for maximizing consumer savings, and current and projected market share of unleaded avgas.
Section-by-Section Breakdown
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Short title: CLEAR Skies Act
Provides the Act’s short name — Cutting Lead Exposure and Aviation Relief Skies Act — which signals the twin policy goals: reducing lead exposure and supporting the aviation fuel market transition. This has no operative effect but frames congressional intent that attendees across agencies may reference during implementation.
Per‑gallon production credit and qualified avgas definition
Adds §45BB to the tax code establishing the mechanics of the credit: taxable‑year credit equals gallons of qualifying fuel sold times an annual per‑gallon rate. The provision anchors technical eligibility to external regulatory standards (a CFR definition and 49 U.S.C. §44714 fuel standards) and requires the fuel to be tetra‑ethyl‑lead‑free, produced in the U.S., and transferred into aircraft tanks domestically. Practically, this means producers must align manufacturing and documentation practices with aviation regulatory specifications to claim the credit.
Producer registration under section 4101 and DOT certification
Conditions the credit on registration under the existing fuel‑producer registration rules (section 4101) and on delivering a certification in a form Treasury prescribes after consulting DOT. That creates an interagency compliance gate: producers must satisfy tax registration and a DOT‑linked technical certification, which will require coordination on documentation, testing, and recordkeeping standards to verify fuel qualifies.
Implementation timeline, sunset, and integration into business credit framework
Treasury must issue implementing regulations and guidance within 180 days of enactment following DOT consultation, which is a relatively short timetable for defining certification processes and audit protocols. The credit is folded into the general business credit (affecting carryforward and utilization rules) and applies only to fuel sold or used after December 31, 2025, with the program terminating for sales after December 31, 2030. Those timing choices create a discrete policy window during which producers and distributors must plan investments and operational changes.
Amendments to fuel producer registration and tax treatment
The bill amends section 4101 to add producers of qualified avgas to the set of registrants and clarifies that qualified avgas is taxed as aviation gasoline for excise tax purposes. These changes force coordination between the excise tax regime and the new credit: producers will be subject to excise‑tax registration and reporting while simultaneously claiming a separate income tax credit, increasing the compliance footprint and requiring reconciled recordkeeping across tax regimes.
GAO study on market and price impacts
Directs the Comptroller General to analyze the retail price gap between leaded and unleaded avgas (including by octane), drivers of that gap, whether producer credits yield consumer savings, and market share projections for unleaded fuel, and to recommend adjustments. The one‑year deadline provides Congress with an evidence base to evaluate the program’s effectiveness and to consider statutory changes based on observed pass‑through or market structure issues.
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Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- Domestic avgas producers and refiners that convert to or scale production of unleaded formulations, because they can claim a direct per‑gallon subsidy that offsets production and conversion costs.
- Fixed base operators (FBOs) and airports that stock unleaded avgas, which may see improved supply security and potentially lower wholesale costs if the subsidy encourages greater domestic production.
- Communities near general aviation airports and public health interests, since reduced use of leaded avgas could lower lead emissions and associated exposure risks, particularly for children who live near small airports.
Who Bears the Cost
- U.S. Treasury (federal taxpayers) will shoulder the revenue cost of the credit, resulting in forgone receipts over the program window and potential budgetary trade‑offs.
- Small or specialized producers that continue producing leaded avgas may face demand loss and competitive pressure to invest in conversion, creating capital costs and stranded‑asset risk for those unable to convert.
- IRS, DOT, and FAA will absorb administrative and enforcement costs to implement the registration, certification, guidance, and auditing regime, requiring staffing and interagency coordination not explicitly funded in the bill.
Key Issues
The Core Tension
The central tension is between using a time‑limited producer subsidy to accelerate removal of leaded avgas from the market — a public‑health and environmental objective — and the risk that the subsidy will primarily enrich producers without guaranteeing lower consumer prices or sufficient infrastructure investment, while imposing significant administrative complexity on agencies and small market participants.
The bill ties tax eligibility to technical fuel definitions and DOT standards but leaves substantial latitude to Treasury and DOT to define the certification process and audit controls. That delegation speeds enactment but pushes key implementation choices — testing protocols, documentary evidence, and resale tracking — into regulatory rulemaking.
Those choices will determine how easy it is for producers to claim credits and for agencies to prevent improper claims. The 180‑day regulatory window and the short statutory life (credits only for 2026–2030 sales) could create a compressed period for producers and retailers to adjust operations, install segregated storage or blending equipment, and negotiate supply contracts.
The statutory incentive assumes a per‑gallon producer subsidy will translate into greater supply and lower retail prices, but the bill contains no explicit pass‑through requirement or clawback mechanism if savings do not reach consumers. Market structure — limited refinery capacity for high‑octane unleaded avgas, specialized distribution chains to small airports, or concentrated supply — could blunt competition and allow producers or distributors to retain a portion of the subsidy.
The GAO study requirement acknowledges this uncertainty, but the study’s findings will arrive after the program begins, limiting ex ante safeguards. Finally, practical questions remain about blended products, imported feedstocks, and how 'produced by the taxpayer in the United States' will be interpreted for blended or toll‑manufactured fuels, which could create disputes and uneven application across producers.
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