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17.8.905    ADDITIONAL CONDITIONS OF MONTANA AIR QUALITY PERMIT

(1) The department shall not issue a Montana air quality permit required under ARM 17.8.904, unless the requirements of subchapter 7 and the following additional conditions are met:

(a) The permit for the new source or modification contains an emission limitation which constitutes the lowest achievable emissions rate for such source.

(b) The applicant certifies that all existing major sources owned or operated by the applicant (or any entity controlling, controlled by, or under common control with the applicant) in the state of Montana are in compliance with all applicable emission limitations and standards under the FCAA or are in compliance with an expeditious schedule of compliance which is federally enforceable or contained in a court decree.

(c) The new source obtains from existing sources emission reductions (offsets) , expressed in tons per year, which provide both a positive net air quality benefit in the affected area in accordance with ARM 17.8.906(7) through (9) , and a ratio of required emission offsets to the proposed source's emissions of 1:1 or greater. The emissions reductions (offsets) required under this subsection must be:

(i) obtained from existing sources in the same nonattainment area as the proposed source, except as specified in ARM 17.8.906(6) (whether or not they are under the same ownership) ;

(ii) subject to the provisions of ARM 17.8.906;

(iii) sufficient to assure that there will be reasonable progress toward attainment of the applicable national ambient air quality standard;

(iv) for the same pollutant (e.g., carbon monoxide increases may only be offset against carbon monoxide reductions) ;

(v) permanent, quantifiable, and federally enforceable; and

(vi) reductions in actual emissions.

(d) The Montana air quality permit contains a condition requiring the source to submit documentation, prior to commencement of operation that the offsets required in the permit have occurred.

(e) The applicant submits an analysis of alternative sites, sizes, production processes and environmental control techniques for such proposed source that demonstrates that benefits of the proposed source significantly outweigh the environmental and social costs imposed as a result of its location, construction or modification.

(2) Any growth allowances which were included in an applicable state implementation plan prior to November 15, 1990 for the purpose of allowing for construction or operation of a new major stationary source or major modification shall not be valid for use in any area that received or receives a notice from the administrator that the applicable state implementation plan containing such allowances is substantially inadequate.

(3) The requirements of (1) (a) and (c) , shall only apply to those pollutants for which the major stationary source or major modification is major and for which the area has been declared nonattainment.

(4) The issuance of a Montana air quality permit shall not relieve any owner or operator of the responsibility to comply fully with applicable provisions of the Montana State Implementation Plan and any other requirements contained in or pursuant to local, state or federal law.

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; AMD, 2002 MAR p. 3567, Eff. 12/27/02; AMD, 2003 MAR p. 645, Eff. 4/11/03.

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