40 C.F.R. § 52.1831
Visibility protection.
Cite as 40 C.F.R. § 52.1831 (2026)
A revision to the SIP was submitted by the Governor on April 18, 1989, for visibility general plan requirements and long-term strategies. [54 FR 41098, Oct. 5, 1989]
40 C.F.R. § 52.1831
Cite as 40 C.F.R. § 52.1831 (2026)