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Test Procedures
Law
CFR 40
Protection of Environment
Environmental Protection Agency
Air Pollution Controls
Control of Emissions from New and In-Use Nonroad Compression-Ignition Engines
Test Procedures
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Section
1039.501
How do I run a valid emission test?
Section
1039.505
How do I test engines using steady-state duty cycles, including ramped-modal testing?
Section
1039.510
Which duty cycles do I use for transient testing?
Section
1039.515
What are the test procedures related to not-to-exceed standards?
Section
1039.520
What testing must I perform to establish deterioration factors?
Section
1039.525
How do I adjust emission levels to account for infrequently regenerating aftertreatment devices?