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  1. LII
  2. Electronic Code of Federal Regulations (e-CFR)
  3. Title 40—Protection of Environment
  4. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  5. SUBCHAPTER U—AIR POLLUTION CONTROLS
  6. PART 1039—CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD COMPRESSION-IGNITION ENGINES
  7. Subpart F—Test Procedures

40 CFR Part 1039 - Subpart F - Test Procedures

  • CFR
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  1. § 1039.501 How do I run a valid emission test?
  2. § 1039.505 How do I test engines using steady-state duty cycles, including ramped-modal testing?
  3. § 1039.510 Which duty cycles do I use for transient testing?
  4. § 1039.515 What are the test procedures related to not-to-exceed standards?
  5. § 1039.520 What testing must I perform to establish deterioration factors?
  6. § 1039.525 How do I adjust emission levels to account for infrequently regenerating aftertreatment devices?

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