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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 40 - Protection of Environment |
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Chapter I - Environmental Protection Agency |
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SubChapter C - Air Programs |
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Part 91 - Control of Emissions from Marine Spark-Ignition Engines |
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Subpart B - Emission Standards and Certification Provisions |
§ 91.109 - Requirement of certification - closed crankcase.
Latest version.
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§ 91.109 Requirement of certification - closed crankcase.
(a) An engine's crankcase must be closed.
(b) For purposes of this section, crankcase means the housing for the crankshaft and other related internal parts.