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e-CFR data is current as of December 2, 2020

Title 40Chapter ISubchapter CPart 90Subpart H → §90.710


Title 40: Protection of Environment
PART 90—CONTROL OF EMISSIONS FROM NONROAD SPARK-IGNITION ENGINES AT OR BELOW 19 KILOWATTS
Subpart H—Manufacturer Production Line Testing Program


§90.710   Compliance with criteria for production line testing.

(a) A failed engine is one whose final deteriorated test results pursuant to §90.709(c), for HC + NOX (NMHC + NOX) or CO exceeds the applicable Family Emission Limit (FEL) or standard if no FEL.

(b) An engine family shall be determined to be in noncompliance, if at any time throughout the model year, the CumSum statistic, Ci, for HC + NOX (NMHC + NOX) or CO, is greater than the action limit, H, for that pollutant, for two consecutive tests.

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