PUBLIC LAW 101-549—NOV. 15, 1990 104 STAT. 2529 ment of Transportation in carrying out the Administrator's duties under this part.". SEC. 230. TECHNICAL AMENDMENTS. The Clean Air Act is amended as follows: (1) In section 202(b)(3), strike out subparagraph (B). (2) Strike out section 202(b)(4) (42 U.S.C. 7521(b)(4)). (3) Strike out section 202(b)(5) (42 U.S.C. 7521(b)(5)). (4) In section 202(b)(6) (42 U.S.C. 7521(b)(6))— (A) strike out "(A)" after "(6)", (B) strike out subparagraph (B), and (C) redesignate paragraph (6) as paragraph (3) and redesignate clauses (i) through (iii) as subparagraphs (A) through (C). (5) Strike out section 202(b)(7) (42 U.S.C. 7521(b)(7)). (6) Strike out section 203(c) (42 U.S.C. 7522(c)). (7) Strike out "announce in the Federal Register and" in section 206(e) (42 U.S.C. 7525(e)). (8) In section 206(f) (42 U.S.C. 7525(f))— (A) strike out "(1)" after "(f)", (B) strike out paragraph (2), and (C) insert "and all light-duty trucks manufactured during or after model year 1995" immediately after "1984", (9) In section 207(g) strike out "(but not designed for emission 42 USC 7541. control under the terms of the last three sentences of section 207(a)(l)" and insert "(but not designed for emission control under the terms of the last sentence of section 207(a)(3))". (10) Strike out section 212. PART B—OTHER PROVISIONS 42 USC 7546. SEC. 231. ETHANOL SUBSTITUTE FOR DIESEL. Within one year after the enactment of the Clean Air Act Amend- Government ments of 1990, the Administrator shall contract with a laboratory contracts, which has done research on alcohol esters of rapeseed oil to evaluate the feasibility, engine performance, emissions, and production capability associated with an alternative to diesel fuel composed of ethanol and high erucic rapeseed oil. The Administrator shall Reports, submit a report on the results of this research to Congress within 3 years of the issuance of such contract. SEC. 232. ADOPTION BY OTHER STATES OF CALIFORNIA STANDARDS. Section 177 of the Clean Air Act (42 U.S.C. 7507) is amended by adding the following at the end thereof: "Nothing in this section or in title II of this Act shall be construed as authorizing any such State to prohibit or limit, directly or indirectly, the manufacture or sale of a new motor vehicle or motor vehicle engine that is certified in California as meeting California standards, or to take any action of any kind to create, or have the effect of creating, a motor vehicle or motor vehicle engine different than a motor vehicle or engine certified in California under California standards (a 'third vehicle') or otherwise create such a 'third vehicle'." SEC. 233. STATES AUTHORITY TO REGULATE. 42 USC 7571 (a) STUDY.— The Administrator of the Environmental Protection Aircraft. Agency and the Secretary of Transportation, in consultation with
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