(c)
The State of North Dakota has clarified the language contained in the North Dakota Administrative Code on the use of the EPA “Guideline on Air Quality Models” as supplemented by the “North Dakota Guideline for Air Quality Modeling Analysis”.In a letter to Douglas M. Skie, EPA, dated February 14, 1992, Dana K. Mount, Director of the Division of Environmental Engineering, stated:
Code of Federal Regulations
[39 FR 7283, Feb. 25, 1974, as amended at 51 FR 40677, Nov. 7, 1986; 57 FR 28620, June 26, 1992; 61 FR 16062, Apr. 11, 1996]