40 CFR § 52.1033
Visibility protection
June 9, 2020
(a)-(c) [Reserved]
[52 FR 45138, Nov. 24, 1987, as amended at 58 FR 15431, Mar. 23, 1993; 82 FR 3129, Jan. 10, 2017]
(a)-(c) [Reserved]
[52 FR 45138, Nov. 24, 1987, as amended at 58 FR 15431, Mar. 23, 1993; 82 FR 3129, Jan. 10, 2017]