C.F.R.
»
Title 40
» CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY › SUBCHAPTER C—AIR PROGRAMS › PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS › Subpart U—Maine
40 C.F.R. § 52.1033
Visibility protection
(a)-(c) [Reserved]
[52 FR 45138, Nov. 24, 1987, as amended at 58 FR 15431, Mar. 23, 1993; 82 FR 3129, Jan. 10, 2017]