Sec. 2. Marine greenhouse gas fuel standard
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The Clean Air Act is amended by inserting after section 212 ( 42 U.S.C. 7546 ) the following: The term carbon dioxide-equivalent means the number of metric tons of carbon dioxide emissions with the same global warming potential as 1 metric ton of another greenhouse gas, as calculated using Equation A–1 in section 98.2(b) of title 40, Code of Federal Regulations (as in effect on the date of enactment of this section). The term carbon intensity means the quantity of lifecycle greenhouse gas emissions per unit of fuel energy, expressed in grams of carbon dioxide-equivalent per megajoule.
The term carbon intensity baseline means the average carbon intensity of the fuel used by all vessels on covered voyages in calendar year 2027. The term covered voyage means any voyage of a vessel for the purpose of transporting passengers or cargo for commercial purposes— that is between any ports of call under the jurisdiction of the United States; or that is between a port of call under the jurisdiction of the United States and a port of call under the jurisdiction of a foreign country.
The term greenhouse gas means carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride. The term lifecycle greenhouse gas emissions has the meaning given the term in section 211(o)(1). The term port of call means the port where a vessel stops to load or unload cargo or to embark or disembark passengers. The term vessel means a vessel of 400 gross tonnage or more. The Administrator shall, by regulation and except as provided in paragraph (3), require each vessel on a covered voyage to comply with standards for the carbon intensity of the fuel used by the vessel for propulsion and for the operation of any onboard equipment so that the carbon intensity is— in each of calendar years 2030 through 2034, at least 30 percent less than the carbon intensity baseline; in each of calendar years 2034 through 2039, at least 58 percent less than the carbon intensity baseline; in each of calendar years 2040 through 2044, at least 83 percent less than the carbon intensity baseline; in each of calendar years 2045 through 2049, at least 92 percent less than the carbon intensity baseline; and in calendar year 2050 and each calendar year thereafter, 100 percent less than the carbon intensity baseline.
The Administrator shall finalize— the standard required by paragraph (1)(A) by not later than January 1, 2029; and the standards required by each of subparagraphs
(B)through
(E)of paragraph
(1)by not later than 2 years before the respective standard goes into effect. If the Administrator determines that a reduction in carbon intensity required under paragraph
(1)is not technologically or economically feasible by the applicable deadline under that paragraph, the Administrator, in lieu of promulgating the standard otherwise required by that paragraph, shall promulgate a standard that will achieve the maximum reduction in the carbon intensity of the fuel used by vessels on covered voyages that is technologically and economically feasible by the applicable deadline. In determining technological and economic feasibility for purposes of subparagraph (A), the Administrator shall take into account the net reduction of emissions of greenhouse gases and the potential adverse impacts on public health, safety, and the environment, including with respect to air quality, water quality, and the generation and disposal of solid waste. If the Administrator determines that standards mandated by the International Maritime Organization for reduction of the carbon intensity of fuel used by vessels for a calendar year are equal to or more stringent than the standards under paragraph
(1)for that calendar year, the Administrator may adopt the standards of the International Maritime Organization. Any vessel that is on covered voyages for 30 days or fewer during a calendar year shall be exempt from the standards promulgated under this subsection for that calendar year. For purposes of determining compliance with any standard established under this subsection, the Administrator may allow the carbon intensity of the fuels used by vessels under common ownership or control to be averaged. The Administrator may allow vessels to credit overcompliance with any standard established under this subsection towards demonstrating compliance with any future standard under this subsection. The Administrator shall develop a list of acceptable methods for monitoring and reporting compliance with the standards established under subsection (b). The Administrator, to the maximum extent practicable, shall ensure the consistency of the methods included in the list required under subparagraph
(A)with similar reporting schemes developed by the European Union and the International Maritime Organization. For each calendar year, the owner or operator of a vessel shall report to the Administrator— the carbon intensity of the fuel used for each covered voyage of the vessel; the amount of fuel used for each covered voyage of the vessel; and the total greenhouse gas emissions for all covered voyages of the vessel, measured in carbon dioxide-equivalent. Not later than 180 days after the end of each annual reporting period under paragraph (2), the Administrator, in consultation with the Secretary of Transportation and the Commandant of the Coast Guard, shall publish on the website of the Environmental Protection Agency a publicly accessible report that— compiles the data reported under paragraph (2); and includes an explanation intended to facilitate public understanding of— the carbon dioxide-equivalent emissions of vessels on covered voyages; and the carbon intensity of fuels used by those vessels. Not later than 30 days after the date on which the Administrator publishes the publicly accessible report on the website of the Environmental Protection Agency under subparagraph
(A)each year, the Secretary of Transportation shall publish a publicly accessible copy of that report on the website of the Department of Transportation. The standards established under subsection
(b)and the annual reporting requirements under subsection (c)(2) shall be considered an emission standard or limitation for purposes of section 304(a)(1). .
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Sec. 2
Marine greenhouse gas fuel standard
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