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42 U.S.C. § 7585 — Standards for heavy-duty clean-fuel vehicles (GVWR above 8,500 up to 26,000 lbs.)
Federal law — U.S. Code and appendices · legal_authorities
**(a) Model years after 1997; combined NOx and NMHC standard** For classes or categories of heavy-duty vehicles or engines manufactured for the model year 1998 or thereafter and having a GVWR greater than 8,500 lbs. and up to 26,000 lbs. GVWR, the standards under this part for clean-fuel vehicles shall require that combined emissions of oxides of nitrogen (NOx) and nonmethane hydrocarbons (NMHC) shall not exceed 3.15 grams per brake horsepower hour (equivalent to 50 percent of the combined emission standards applicable under [section 7521 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title42-section7521&num=0&edition=prelim) for such air pollutants in the case of a conventional model year 1994 heavy-duty diesel-fueled vehicle or engine). No standard shall be promulgated as provided in this section for any heavy-duty vehicle of more than 26,000 lbs. GVWR.
**(b) Revised standards that are less stringent**
(1) The Administrator may promulgate a revised less stringent standard for the vehicles or engines referred to in subsection (a) if the Administrator determines that the 50 percent reduction required under subsection (a) is not technologically feasible for clean diesel-fueled vehicles and engines, taking into account durability, costs, lead time, safety, and other relevant factors. To provide adequate lead time the Administrator shall make a determination with regard to the technological feasibility of such 50 percent reduction before December 31, 1993.
(2) Any person may at any time petition the Administrator to make a determination under paragraph (1). The Administrator shall act on such a petition within 6 months after the petition is filed.
(3) Any revised less stringent standards promulgated as provided in this subsection shall requ
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Source file: Laws/federal/codes/united-states-code/title-42/section-7585-standards-for-heavy-duty-clean-fuel-vehicles-gvwr-above-8-500-up-to-26-0--9b8e4e633b.md
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Source location: Title 42, Chapter 85, § 7585; chapter-085-air-pollution-prevention-and-control.md
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**(a) Model years after 1997; combined NOx and NMHC standard** For classes or categories of heavy-duty vehicles or engines manufactured for the model year 1998 or thereafter and having a GVWR greater than 8,500 lbs. and up to 26,000 lbs. GVWR, the standards under this part for clean-fuel vehicles shall require that combined emissions of oxides of nitrogen (NOx) and nonmethane hydrocarbons (NMHC) shall not exceed 3.15 grams per brake horsepower hour (equivalent to 50 percent of the combined emission standards applicable under [section 7521 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title42-section7521&num=0&edition=prelim) for such air pollutants in the case of a conventional model year 1994 heavy-duty diesel-fueled vehicle or engine). No standard shall be promulgated as provided in this section for any heavy-duty vehicle of more than 26,000 lbs. GVWR.
**(b) Revised standards that are less stringent**
(1) The Administrator may promulgate a revised less stringent standard for the vehicles or engines referred to in subsection (a) if the Administrator determines that the 50 percent reduction required under subsection (a) is not technologically feasible for clean diesel-fueled vehicles and engines, taking into account durability, costs, lead time, safety, and other relevant factors. To provide adequate lead time the Administrator shall make a determination with regard to the technological feasibility of such 50 percent reduction before December 31, 1993.
(2) Any person may at any time petition the Administrator to make a determination under paragraph (1). The Administrator shall act on such a petition within 6 months after the petition is filed.
(3) Any revised less stringent standards promulgated as provided in this subsection shall require at least a 30 percent reduction in lieu of the 50 percent reduction referred to in paragraph (1).
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Federal law — U.S. Code and appendices · legal_authorities
**(a) Authority of Administrator to prescribe by regulation** Except as otherwise provided in subsection (b)—
(1) The Administrator shall by regulation prescribe (and from time to time revise) in accordance with the provisions of this section, standards applicable to the emission of any air pollutant from any class or classes of new motor vehicles or new motor vehicle engines, which in his judgment cause, or contribute to, air pollution which may reasonably be anticipated to endanger public health or welfare. Such standards shall be applicable to such vehicles and engines for their useful life (as determined under subsection (d), relating to useful life of vehicles for purposes of certification), whether such vehicles and engines are designed as complete systems or incorporate devices to prevent or control such pollution.
(2) Any regulation prescribed under paragraph (1) of this subsection (and any revision thereof) shall take effect after such period as the Administrator finds necessary to permit the development and application of the requisite technology, giving appropriate consideration to the cost of compliance within such period.
(3)
(A) *In general.—*
(i) Unless the standard is changed as provided in subparagraph (B), regulations under paragraph (1) of this subsection applicable to emissions of hydrocarbons, carbon monoxide, oxides of nitrogen, and particulate matter from classes or categories of heavy-duty vehicles or engines manufactured during or after model year 1983 shall contain standards which reflect the greatest degree of emission reduction achievable through the application of technology which the Administrator determines will be available for the model year to which such standards apply, giving appropriate consideration to cost, energy, and s
Source: Supplied U.S. Code snapshot — release unconfirmed · 42 U.S.C. § 7521
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Federal law — U.S. Code and appendices · legal_authorities
Where the numerical clean-fuel vehicle standards applicable under this part to vehicles of not more than 8,500 lbs. GVWR are the same as numerical emission standards applicable in California under the Low-Emission Vehicle and Clean Fuels Regulations of the California Air Resources Board (“CARB”), such standards shall be administered and enforced by the Administrator—
(1) in the same manner and with the same flexibility as the State of California administers and enforces corresponding standards applicable under the Low-Emission Vehicle and Clean Fuels Regulations of the California Air Resources Board (“CARB”); and
(2) subject to the same requirements, and utilizing the same interpretations and policy judgments, as are applicable in the case of such CARB standards, including, but not limited to, requirements regarding certification, production-line testing, and in-use compliance,
unless the Administrator determines (in promulgating the rules establishing the clean fuel vehicle program under this section) that any such administration and enforcement would not meet the criteria for a waiver under [section 7543 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title42-section7543&num=0&edition=prelim). Nothing in this section shall apply in the case of standards under [section 7585 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title42-section7585&num=0&edition=prelim) for heavy-duty vehicles.
Source: Supplied U.S. Code snapshot — release unconfirmed · 42 U.S.C. § 7584
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Federal law — U.S. Code and appendices · legal_authorities
Page 7377
TITLE 42—THE PUBLIC HEALTH AND WELFARE
§ 7585
to in subsection (a), (b), (c), or (d) of this sec-
tion and such set of standards is, in the aggre-
gate, at least as protective of public health
and welfare as the otherwise applicable stand-
ards set forth in section 7582 of this title and
subsection (a), (b), (c), or (d) of this section,
such set of California standards shall apply to
clean-fuel vehicles in such category in lieu of
the standards otherwise applicable under sec-
tion 7582 of this title and subsection (a), (b),
(c), or (d) of this section, as the case may be.
(2) Multiple sets of CARB standards
If the State of California promulgates regu-
lations establishing and implementing several
different sets of standards applicable in Cali-
fornia pursuant to a waiver approved under
section 7543 of this title to any category of ve-
hicles referred to in subsection (a), (b), (c), or
(d) of this section and each of such sets of
California standards is, in the aggregate, at
least as protective of public health and welfare
as the otherwise applicable standards set forth
in section 7582 of this title and subsection (a),
(b), (c), or (d) of this section, such standards
shall be treated as ‘‘qualifying California
standards’’ for purposes of this paragraph.
Where more than one set of qualifying stand-
ards are established and administered by the
State of California, the least stringent set of
qualifying California standards shall apply to
the clean-fuel vehicles concerned in lieu of the
standards otherwise applicable to such vehi-
cles under section 7582 of this title and this
section.
(f) Less stringent CARB standards
If the Low-Emission Vehicle and Clean Fuels
Regulations of the California Air Resources
Board applicable to any category
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