Section 405.10. Air quality models.

 

(1)  All estimates of ambient concentrations required under this chapter shall be based on the applicable air quality models, data bases, and other requirements specified in the Guideline on Air Quality Models (Revised) in Appendix W of 40 CFR part 51 , incorporated by reference in s. NR 484.04 .

(2)  Where an air quality impact model specified in the Guideline on Air Quality Models in Appendix W of 40 CFR part 51 is inappropriate, the model may be modified or another model substituted.

(3)  A substitution or modification of a model shall be subject to the public comment procedures set forth in s. NR 405.15 .

(4)  Written approval of the administrator shall be obtained for any modification or substitution.

History: Cr. Register, January, 1987, No. 373 , eff. 2-1-87; am. (1) and (5), Register, April, 1988, No. 388 , eff. 5-1-88; am. (1) and (5), r. (6), Register, May, 1992, No. 437 , eff. 6-1-92; am. (1) to (3), r. (5), Register, April, 1995, No. 472 , eff. 5-1-95 ; am. (4), Register, December, 1995, No. 480 , eff. 1-1-96.