GroundRules
40 CFR 1031.40: Turboprop engines.
Where this section sits in the code
- Title 40—Protection of Environment
- CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
- SUBCHAPTER U—AIR POLLUTION CONTROLS
- PART 1031—CONTROL OF AIR POLLUTION FROM AIRCRAFT ENGINES
- Subpart B—Emission Standards and Measurement Procedures
The following standards apply to turboprop engines with rated output at or above 1,000 kW:
(a) Smoke. Engines of a type or model for which the date of manufacture of the individual engine is on or after January 1, 1984, may not have a characteristic level for smoke number exceeding the following value:
SN = 187·rO− 0.168
(b) [Reserved]
Collected 2026-08-27T02:26:04Z. Source file · JSON