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MT SIP: Chapter 08 - Prevention of Significant Deterioration, Ambient Air Ceilings

State  Montana
State Agency Department of Environmental Quality
Affected Area Statewide
Regulation Administrative Rules of Montana, Sub-Chapter 08  Prevention of Significant Deterioration of Air Quality
Rule Number 17.8.805
Rule Title Ambient Air Ceilings
State Effective Date 08/23/96
EPA Effective Date 10/12/2001
Notice of Final Rule Date 10/12/2001
Notice of Final Rule Citation 66 FR 42427

Rule Text:


(1) No concentration of a pollutant shall exceed the concentration permitted under either the applicable secondary or primary national ambient air quality standard, whichever concentration is lowest for the pollutant for a period of exposure. (History: 75-2-111, 75-2-203, MCA; IMP, 75-2-202, 75-2-203, 75-2-204, MCA; NEW, 1993 MAR p. 2919, Eff. 12/10/93; TRANS, from DHES, 1996 MAR p. 2285.)

Rule History

State Effective Date EPA Effective Date Notice of Final Rule Date Notice of Final Rule Citation Comments Rule Text