Code of Federal Regulations · Section
§ 202.11 — Effective Date
40 C.F.R. § 202.11
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The provisions of Subpart B shall become effective October 15, 1975, except that the provisions of § 202.20(b) and § 202.21(b) of Subpart B shall apply to motor vehicles manufactured during or after the 1986 model year.
Authorizing Statute
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Motor carrier noise emission standards42 U.S.C. § 4917