Source: http://uscode.house.gov/view.xhtml?req=(title:42%20section:16131%20edition:prelim)
Timestamp: 2019-04-21 00:14:10+00:00

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(ii) returned to the supplier for remanufacturing to a more stringent set of engine emissions standards or for scrappage.
(ii) meets such timely and appropriate requirements as the Administrator may establish for vehicle use and for notice to and approval by the Federal department or agency or entity described in subparagraph (A) with respect to which the owner has entered into a contract, license, or lease as described in clause (i).
The term "emerging technology" means a technology that is not currently, or has not been previously, certified or verified by the Administrator or the California Air Resources Board but for which an approvable application and test plan has been submitted for verification to the Administrator or the California Air Resources Board.
The term "fleet" means one or more diesel vehicles or mobile or stationary diesel engines.
The term "heavy-duty truck" has the meaning given the term "heavy duty vehicle" in section 7521 of this title.
The term "medium-duty truck" has such meaning as shall be determined by the Administrator, by regulation.
The term "State" means the several States, the District of Columbia, the Commonwealth of Puerto Rico, Guam, the United States Virgin Islands, American Samoa, and the Commonwealth of the Northern Mariana Islands.
(B) the California Air Resources Board.
2011-Par. (3)(C). Pub. L. 111–364, §2(a)(1), added subpar. (C).
Par. (4). Pub. L. 111–364, §2(a)(2), inserted "currently, or has not been previously," after "that is not".
Par. (8). Pub. L. 111–364, §2(a)(6), added par. (8). Former par. (8) redesignated (9).
Par. (9). Pub. L. 111–364, §2(a)(5), struck out ", advanced truckstop electrification system," after "retrofit technology" in introductory provisions.
Pub. L. 111–364, §2(a)(4), redesignated par. (8) as (9). Former par. (9) struck out.
Pub. L. 111–364, §2(a)(3), struck out par. (9) which defined "State" to include the District of Columbia.
2008-Par. (9). Pub. L. 110–255 added par. (9).
"(a) General Rule.-Except as provided in subsection (b), the amendments made by section 2 [amending this section and sections 16132 to 16134 and 16137 of this title] shall take effect on October 1, 2011.
"(b) Exception.-The amendments made by subsections (a)(4) and (6) and (c)(4) of section 2 [amending this section and section 16133 of this title] shall take effect on the date of enactment of this Act [Jan. 4, 2011]."

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