View all text of Subjgrp 36 [§ 1065.1123 - § 1065.1127]
§ 1065.1123 - General provisions for determining exhaust opacity.
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.