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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Jan 21, 2026
All Titles
Title 40
Chapter I
Part 90 - PART 90—CONTROL OF EMISSIONS FROM NONROAD SPARK-IGNITION ENGINES AT OR BELOW 19 KILOWATTS
§ 90.1 - Applicability.
§§ 90.2 through 90.3 - §through 90.3 [Reserved]
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