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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 14
Chapter I
Part 34
Subpart H - Subpart H—Test Procedures and Compliance Demonstration for Non-Volatile Particulate Matter Emissions
§ 34.71 - Non-volatile particulate matter (nvPM) test procedures.
§ 34.73 - Demonstration of compliance for nvPM emissions.
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