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U.S. DEPARTMENT OF THE TREASURY
Treasury Department Releases Guidance to Boost American Clean
Energy Manufacturing
May 12, 2023

WASHINGTON, D.C. – As part of the Biden-Harris Administration’s Investing in America strategy, the
U.S. Department of the Treasury and Internal Revenue Service (IRS) today released guidance that
provides detailed information about the domestic content bonus

under the Inflation Reduction

Act for clean energy projects and facilities that meet American manufacturing and sourcing
requirements. The guidance was developed in partnership with the Department of Energy and
Department of Transportation.
“The domestic content bonus under the Inflation Reduction Act will boost American
manufacturing, including in iron and steel, so America’s workers and companies continue to
benefit from President Biden’s Investing in America agenda. These tax credits are key to driving
investment and ensuring all Americans share in the growth of the clean energy economy,” said
Secretary of the Treasury Janet L. Yellen. “Thanks to President Biden’s Investing in America agenda
and the Inflation Reduction Act, the United States is benefitting from a boom in clean energy
development and manufacturing, creating good-paying jobs nationwide, strengthening our
national security, and advancing our climate goals.”
“Thanks to President Biden’s Investing in America agenda we are seeing a boom in clean energy
manufacturing with hundreds of new or expanded facilities announced across the nation, said
Secretary of Energy Jennifer M. Granholm. “The domestic content bonus credit is yet another
example of the Biden-Harris Administration’s commitment to strengthening American
manufacturing and enhancing our national security with products stamped ‘Made in the U.S.A.’”
“The Biden-Harris Administration is creating a vibrant clean energy economy,” said Secretary of
Transportation Pete Buttigieg. “The Department of Transportation was pleased to advise Treasury
on the implementation of this domestic content bonus credit to further incentivize renewable
energy projects.”
Under the Production Tax Credit (PTC), facilities that meet domestic content requirements receive
a 10 percent bonus. Under the Investment Tax Credit (ITC), projects that meet the domestic
content requirement receive up to a 10-percentage point bonus. Projects are eligible for the full

value of the bonus only if they meet the domestic content requirement and one of the following
requirements: 1) the project has a maximum net output of less than 1 megawatt of energy; 2)
construction of the project began before January 29, 2023; or 3) the project satisfies the Inflation
Reduction Act’s prevailing wage and apprenticeship requirements.
The domestic content bonus applies to facilities built using the required amounts of domestically
produced steel, iron, and manufactured products. To receive the bonus, all steel and iron
manufacturing processes must take place in the United States. A statutorily required minimum
percentage of the costs of the manufactured products and components of manufactured products
that comprise a facility must come from products and components that were mined, produced, or
manufactured in the United States.
Consistent with the Buy America rules administered by the Federal Transit Administration, a
manufactured product is produced in the United States if the manufacturing processes for the
product take place in the United States and all the components of the product are manufactured in
the United States. Components include any articles, materials, or supplies that are incorporated
into the manufactured product. The guidance also includes key clarifications around the treatment
of labor costs, to ensure the focus of the incentive remains on domestic manufacturing.
To assist taxpayers in determining the applicable steel, iron, or manufactured product standards,
the Treasury Department and the IRS are providing a safe harbor for certain types of clean energy
projects, which was recommended by the Federal Transit Administration and the Department of
Energy. Treasury welcomes input on how manufactured product components are classified,
particularly as technologies, manufacturing processes, and supply chains evolve. While today’s
guidance establishes a safe harbor with specified classifications for certain manufactured
products, Treasury is open to considering alternative approaches to classification, including a taxspecific, technology-neutral, principles-based approach.
Guidance for the domestic content bonus is the next step in the first phase of the Treasury
Department's implementation of the Inflation Reduction Act’s clean energy provisions. Today’s
guidance follows a Notice of Proposed Rulemaking for the clean vehicle credit released in March
and guidance for the bonus for clean energy projects and facilities located in energy communities,
issued in April. The first phase of guidance represents the core elements needed to accelerate the
Inflation Reduction Act’s significant economic and climate benefits and to provide clarity and
certainty to companies and other entities planning investments and projects. The Treasury
Department will continue issuing guidance on the Inflation Reduction Act’s clean energy provisions
on a rolling basis in the coming months.

ADDITIONAL BACKGROUND ON TREASURY’S
IMPLEMENTATION OF THE INFLATION REDUCTION AC.
Since the Inflation Reduction act was signed into law in August 2022, Treasury has worked
expeditiously to write the rules that will make real the promise of this legislation. Within days of
the law’s enactment, last August, Treasury issued guidance on the electric vehicle tax credit and
worked closely with DOT and DOE so consumers could easily find a list of eligible vehicles online.
Last fall, Treasury held a series of stakeholder discussions with Secretary Yellen and Deputy
Secretary Adeyemo to solicit input from key groups representing millions of workers, thousands of
companies, and trillions of dollars in investment assets, as well as climate and environmental
justice advocates, community-based organizations, and other key actors that are critical to the
success of the Inflation Reduction Act. Treasury also hosted formal consultations with Tribal
governments and Alaska Native Corporations to hear first-hand from Tribal leaders about
provisions in the law that directly affect Tribal nations.
In addition, Treasury has solicited and reviewed thousands of public comments from trade
associations, carmakers, labor groups, state and municipal leaders, consumers, foreign
governments, utility companies, climate advocacy organizations, think tanks, and more.
In November, Treasury published initial guidance on the prevailing wage and apprenticeship
standards. In December, Treasury and the IRS issued guidance on the new Sustainable Aviation
Fuel (SAF) credit and FAQs

on energy efficient home improvement projects and residential

clean energy property credits. For more information on Treasury’s implementation work around
the Inflation Reduction Act, see below.
August 16, 2022: Treasury Releases Initial Information on Electric Vehicle Tax Credit Under Newly
Enacted Inflation Reduction Act
October 5, 2022: Treasury Seeks Public Input on Implementing the Inflation Reduction Act’s Clean
Energy Tax Incentives
FACT SHEET: Treasury, IRS Open Public Comment on Implementing the Inflation Reduction Act’s
Clean Energy Tax Incentives
October 26, 2022: READOUT: Stakeholder Roundtable on Clean Power Generation and the Inflation
Reduction Act
October 27, 2022: READOUT: Stakeholder Roundtable on Climate Impact, Equity, and the Inflation
Reduction Act

FACT SHEET: Four ways the Inflation Reduction Act’s Tax Incentives Will Support Building an
Equitable Clean Energy Economy
October 31, 2022: READOUT: Stakeholder Roundtable on Investor Perspectives on Climate Change,
Clean Energy, and the Inflation Reduction Act
November 3, 2022: Treasury Seeks Public Input on Additional Clean Energy Tax Provisions of the
Inflation Reduction Act
November 4, 2022: READOUT: Stakeholder Roundtable on Clean Vehicles and the Inflation
Reduction Act
November 29, 2022: Treasury Announces Guidance on Inflation Reduction Act’s Strong Labor
Protections
December 12, 2022: Treasury and IRS set out procedures for manufacturers, sellers of clean
vehicles
December 19, 2022: Treasury, IRS issue guidance on new Sustainable Aviation Fuel Credit
December 22, 2022: IRS releases frequently asked questions about energy efficient home
improvements and residential clean energy property credits
January 17, 2023: Remarks by Deputy Secretary of the Treasury Wally Adeyemo at White House
event “Lowering Costs: Inflation Reduction Act Briefing”
January 29, 2023: Statement from Deputy Secretary of the Treasury Wally Adeyemo on
Implementation of Strong Inflation Reduction Act Worker Protections
February 3, 2023: Treasury Updates Vehicle Classification Standard for Clean Vehicle Tax Credits
Under Inflation Reduction Act
February 13, 2023: Treasury, Energy Release Guidance on Inflation Reduction Act Programs to
Incentivize Investments in Underserved Communities, Hard-Hit Coal Communities
March 22, 2023: Remarks by Assistant Secretary for Tax Policy Lily Batchelder on Implementation of
the Inflation Reduction Act’s Clean Energy Provisions
March 31, 2023: Treasury Releases Proposed Guidance on New Clean Vehicle Credit to Lower Costs
for Consumers, Build U.S. Industrial Base, Strengthen Supply Chains
April 4, 2023: Treasury Releases Guidance to Drive Investment to Coal Communities
April 14, 2023: READOUT: Treasury Convenes Roundtable Discussion on Inflation Reduction Act
Incentives for Underserved Communities

April 27, 2023: READOUT: Treasury Department Convenes Roundtable Discussion on Inflation
Reduction Act Incentives for Underserved Communities