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U.S. Code Regulations Constitution Journal Apps
  1. Regulations
    All Titles
  2. title 40
    Protection of Environment
  3. chapter I-i35
    CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
  4. part 1039
    PART 1039—CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD COMPRESSION-IGNITION ENGINES
  5. subpart F
    Subpart F—Test Procedures

Subpart F. Subpart F—Test Procedures

  • § 1039.501 - How do I run a valid emission test?
  • § 1039.505 - How do I test engines using steady-state duty cycles, including ramped-modal testing?
  • § 1039.510 - Which duty cycles do I use for transient testing?
  • § 1039.515 - What are the test procedures related to not-to-exceed standards?
  • § 1039.520 - What testing must I perform to establish deterioration factors?
  • § 1039.525 - How do I adjust emission levels to account for infrequently regenerating aftertreatment devices?
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