Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
All TitlesTitle 40Chapter IPart 86Subpart F - Subpart F—Emission Regulations for 1978 and Later New Motorcycles; Test Procedures
View all text of Subpart F [§ 86.501-78 - § 86.599]
§ 86.503-78 - Abbreviations.

(a) The abbreviations in § 86.403-78 apply to this subpart.

(b) [Reserved]

authority: 42 U.S.C. 7401-7671q.
cite as: 40 CFR 86.503-78
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