§1031.40. Turboprop engines.
40 C.F.R. § 1031.40
The following standards apply to turboprop engines with rated output at or above 1,000 kW:
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:
[Reserved]
Notes, amendments, and revision history
Authority
Authority: 42 U.S.C. 7401-7671q.
Source
Source: 87 FR 72351, Nov. 23, 2022, unless otherwise noted.