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Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 1065.1123: General provisions for determining exhaust opacity.

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER U—AIR POLLUTION CONTROLS
  4. PART 1065—ENGINE-TESTING PROCEDURES
  5. Subpart L—Methods for Unregulated and Special Pollutants and Additional Procedures

The provisions of § 1065.1125 describe system specifications for measuring percent opacity of exhaust for all types of engines. The provisions of § 1065.1127 describe how to use such a system to determine percent opacity of engine exhaust for applications other than locomotives. See 40 CFR 1033.525 for measurement procedures for locomotives.

Collected 2026-08-27T02:26:04Z. Source file · JSON

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