§1065.1123. General provisions for determining exhaust opacity.
40 C.F.R. § 1065.1123
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.
Notes, amendments, and revision history
Source
Source: Sections 1065.1123 through 1065.1127 appear at 88 FR 4693, Jan. 24, 2023, unless otherwise noted.
Source
Source: 79 FR 23820, Apr. 28, 2014, unless otherwise noted.
Authority
Authority: 42 U.S.C. 7401-7671q.
Source
Source: 70 FR 40516, July 13, 2005, unless otherwise noted.