C.F.R. » Title 40 » CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY › SUBCHAPTER C—AIR PROGRAMS › PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS › Subpart JJ—North Dakota

40 C.F.R. § 52.1831

Visibility protection

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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]