r "Y Montana Department Of 

~ ENVIRONMENTALQUALITY Brian Schweitzer, Governor 

P.O. Box 200901 • Helena, MT 59620-0901 • (406) 444-2544 • www.deq.mt.gov 

James B. Martin 

Regional Administrator 

USEPA, Region 8 

1595 Wynkoop Street 

Denver, Colorado 80202-1129 

Dear Mr. Martin: 

January 3, 2012 

On March 27, 2008, EPA revised the primary National Ambient Air Quality Standards (NAAQS) for ozone 

(03). In accordance with the applicable requirements of 42 USC §7410(a)(1), within three years after 

promulgation of a new or revised NAAQS, each state shall adopt and submit to EPA a plan which provides 

for implementation, maintenance, and enforcement of such primary NAAQS in each air quality control 

region (or portion thereof) within the state. Montana did not initially certify State Implementation Plan (SIP) 

adequacy of these requirements within the three-year time frame because EPA had initiated a process to 

reconsider the 2008 0 3 standard at a level lower than the 2008 revision. In December 2011 EPA 

subsequently decided to not reissue the 2008 0 3 standard and continue implementation of the 2008 0 3 

standard until the next review period ending in 2013. Following the December 2011 decision, on April 30, 

2012, EPA issued final 0 3 designations for Montana stating that all areas (Counties) in the state are 

attainment or unclassifiable for the 2008 revised 0 3 standard. 

On behalf of Governor Brian Schweitzer and pursuant to EPA's October 14, 2011, Infrastructure SIP 

guidance, I hereby certify that the existing Montana SIP is adequate for this purpose. For your reference, 

this submission includes an attachment providing an adequacy demonstration of Montana's compliance 

with the SIP infrastructure elements set forth at 42 USC §7410(a)(2). Pursuant to EPA's October 14, 2011, 

guidance, the information contained in the attachment was noticed for a 30-day public comment period 

ending on December 31, 2012. No comments were received. 

If you have any questions regarding this action, please contact M. Eric Merchant, the Department's Air 

Quality Policy and Planning Supervisor, by telephone at (406) 444-1457 or by email at 

emerchant@mt.gov. 

Enclosure 

Sincerely, . - , , 

······7 .··7 /. /I - / . . / ;f. ./ 

~: _., l c <... ( // / • {. 

Richard H. Opper 

Director 

c: Brian Schweitzer, Governor, State of Montana 

Carl Daly, Director, Air Program, Office of Partnership and Regulatory Assistance, USEPA Region 8 

Kathy Ayala, USEPA Region 8 

Eafo,..,_t DlvllloD • Permlttla1 A CompiiiiBte Dlvlllo• • Pla••illl, l'rewallo• A Aulatuee Ohololo• • Remed18tlo• Divlalo• 
State of Montana 

11 O(a)(2) SIP Requirements for ozone 

Executive Summary 

A State Implementation Plan (SIP) identifies how the state will attain and maintain the primary and 

secondary National Ambient Air Quality Standards (NAAQS). The SIP contains regulations, sourcespecific requirements, non-regulatory items such as plans and inventories, and in some cases additional 

requirements promulgated by the US Environmental Protection Agency (EPA). The initial SIPs for states 

were approved by EPA on May 31, 1972. A state may revise its SIP with EPA approval as necessary. 

The federally enforceable SIP for Montana is compiled in 40 CFR Part 52 Subpart BB. Pursuant to the 

requirements of the Federal Clean Air Act (CAA), Montana declares that its SIP meets the requirements 

of 42 USC 7410(a)(1)(D)(i). 

Relative to the 2008 ozone NAAQS, Montana has no ozone nonattainment areas (NAA) and no specific 

NAA control plans with respect to ozone. On April30, 2012, EPA issued final designations providing that 

all areas (Counties) in Montana are attainment or unclassifiable for the 2008 revised ozone NAAQS. The 

enclosed SIP table outlines the requirements of section 11 O(a)(2)(A) through (M) of the CAA and 

addresses how Montana will implement, maintain and enforce the 2008 ozone NAAQS. 

State authority for Montana's air quality program is codified in Chapter 2- Clean Air Act of Montana (or 

MT CAA), in Title 75 (Environmental Protection) of the Montana Code Annotated (MCA), which confers 

upon the Board of Environmental Review (BER) and the Department of Environment Quality 

(Department) certain authorities to adopt rules and implement the MT CAA. 

The regulatory authority to implement programs appropriate for controlling emissions of regulated air 

pollutants is contained in the Administrative Rules of Montana (ARM), specifically Chapter 8 of Title 17 for 

Air Quality. 

Those requirements of 42 USC §7410(a)(2) that are in the approved SIP or recently submitted SIP 

revisions relate to enforceable emission limits and schedules for compliance; monitoring, source testing 

and emissions reporting; recordkeeping and reporting requirements; and permit fees. Some 

requirements, such as intergovernmental consultation, air quality modeling, and compliance with Part D of 

Title I of the CAA, are fulfilled during the development and submission to EPA as a SIP revision of 

attainment plans. 

G:\ARMB\AMAP\SIPsubmissions\03\MT_IIO_ 03 _SIP_ Cert_Table_Final_Draft.doc 
State of Montana 

110(a)(2) SIP Requirements for ozone 

§110(a)(2) CAA Requirement Montana's Requirements 

Montana has determined that no reductions in ozone emissions are required for mainte

ozone NAAQS. Enforceable control measures exist to protect the ozone NAAQS throu

Montana implements a stationary source permit program which requires subject source

emissions will not cause or contribute to a violation of any NAAQS (ARM 17.8.749). Su

further required to utilize best available control technology (BACT) when installing emis

Except for specific control measures adopted in BER orders, the emission limits and ot

control regulations are contained in the following subchapters of Title 17, Chapter 8, AR

General Provisions; Subchapter 3 - Emission Standards; Subchapter 4 - Stack Heights 

Techniques; Subchapter 6- Open Burning; Subchapter 7- Permit, Construction and O

Contaminant Sources; Subchapter 8 - Prevention of Significant Deterioration of Air Qua

Include enforceable Permit Requirements for Major Stationary Sources or Major Modifications Locating with

emission limitations and Areas; Subchapter 10 - Preconstruction Permit Requirements for Major Stationary Sou

other control measures, Modifications Locating within Attainment or Unclassified Areas; Subchapter 16- Emiss

means, or techniques Requirements for Oil and Gas Well Facilities Operating Prior to Issuance of a Montana 

(including economic Subchapter 17 - Registration of Air Contaminant Sources. 

§110(a)(2) incentives such as fees, 

(A) marketable permits, Montana does not exempt from legal enforcement actions excess emissions that occur 

and auctions or shutdown, maintenance, or malfunction. Emissions in excess of permit or regulatory lim

emissions rights), as violations, subject to affirmative defenses with the burden of proof on the respondent. S

well as schedules and 

timetable for State Rule(s) Federal Action• Actio

compliance. ARM 17.8.101 et seq. approved 60 

ARM 17.8.301 et seq. approved 44 ARM 17.8.401 et seq. approved 60 

ARM 17.8.401 et seq. approved 61 ARM 17.8.601 et seq. approved 60 

ARM 17.8.701 et seq. approved 60 ARM 17.8.801 et seq. approved 60 ARM 17.8.901 et seq. approved 60 

ARM 17.8.1001 et seq. approved 60 

ARM 17.8.1601 et seq. Proposed approval 77 ARM et seq. Proposed approval 77 

DRAFT Montana ozone NAAQS IIO(a)(2) Infrastructure SIP Certification 
On an annual basis, the Department evaluates trends in industrial and economic develo

and population growth, and conducts other scientific, social, and geographic observatio

the state which may be adversely affected by the impact of criteria pollutants. Based o

Department identifies potential air pollution "hotspots." The Department, with participat

local county air pollution control program staff and other interested persons, develops d

monitor type, location, and schedules for monitoring air quality in these hotspots. The 

Provide for decision-making process, the annual monitoring network plan, is made available by the 

public review and comment prior to submission to EPA. Further, in accordance with 40 

establishment and beginning in July 2008, and every 5 years thereafter, Montana develops a periodic netw

operation of appropriate ensure the effective implementation of an adequate ambient air quality surveillance sys

devices, methods, network assessment is made available by the Department for public review and comme

systems, and submission to EPA. 

§110(a)(2) procedures necessary 

(8) to monitor, compile, Pursuant to its Quality Assurance Project Plans, the Department makes arrangements 

and analyze data on maintain federal reference monitors and establishes federally-approved protocols for sa

ambient air quality, and handling, and analysis. Ambient air monitoring data is subject to strict quality assuranc

upon request, make processes. Air monitoring data is submitted to EPA's national "AIRS" database. such data available to 

the Administrator. There are no communities in Montana that are currently required to have ambient ozon

However, the Department operates six non-required ozone monitoring sites, in addition 

NCore site, in an effort to determine ozone background concentrations and potential im

during the annual monitoring review process, the need for ambient ozone monitoring is 

The provisions in state law for the collection and analysis of ambient air quality data are 

CAA, 75-2-101 et seq., MCA, and specifically, 75-2-112, MCA, Powers and Responsib

Include a program to Congress directed States to develop and implement measures to prevent significant de

provide for enforcement air quality pursuant to 42 USC §§7470, et seq. and 7501, et seq. Pursuant to ARM 17.

the of measures in § subject to the provisions of Title 17, Chapter 8, subchapters 8, 9, and 10, ARM, regulat

110(a)(2)(A), and new or modified stationary sources consistent with PSD and New Source Review (NSR

regulation of the be subject to enforcement. The Department has the authority to issue a notice of violat

modification and 

§110(a)(2) construction of any regarding the source violation, and an order to take corrective action. On March 29, 20

(C) stationary source within EPA's promulgation of the NSR Reform provisions, Montana submitted to EPA a demo

the areas covered by program equivalency (equivalency demonstration) as approved under the rules cited in 

the plan as necessary To date, EPA has not responded to Montana's equivalency demonstration. 

to assure that NAAQS 

are achieved, including 

a permit program as 

DRAFT Montana ozone NAAQS II O(a)(2) Infrastructure SIP Certification 
§110(a)(2) 

(D) 

required in parts C and 

D. 

(i) Contain adequate 

provisions prohibiting 

any source or other 

type of emissions 

activity from emitting any air pollutant in 

amounts which will: 

(I) Contribute 

significantly to 

nonattainment in, or 

interfere with maintenance by, any 

other State with 

State Rule(s) I Federal Action* I Actio

ARM 17.8.130 I I 71 

ARM 17.8.801 et seq. I approved I 60 

ARM 17.8.901 et seq. _ I approved I 60 

ARM 17.8.1001 et seq. I approved I 60 

*EPA subsequently approved revisions to many of these rules promulgated in later Federal Regis

for those revisions upon which EPA failed to act and which are currently being addressed as part 

8 SIP backlog initiative. 

The provisions in state law for the enforcement of emission limitations and other contro

techniques are contained in the MT CAA, 75-2-101 et seq., MCA, and specifically, 75-2

of the Board and 75-2-112, MCA, Powers and Responsibilities of Department. 

On August 20, 2008, the Department provided EPA a report regarding status and imple

of its NSR/PSD program in light of EPA rulemaking. The Department stated the followin

"On June 3, 2008, EPA promulgated the final Prevention of Significant Deterioration 

(PSD) and Title V Greenhouse Gas (GHG) Tailoring Rule ("Tailoring Rule," Docket

EPA-HQ-OAR-2009-0517). In the preamble for the Tailoring Rule EPA requested 

feedback regarding each state's ability to implement the provisions of the Tailoring 

Montana's existing rules and regulations provide the framework for implementation 

PSD and Title V programs consistent with the Tailoring Rule provisions". 

Montana is not a state for which EPA "narrowed" its previous approval of SIP PSD prog

GHG-emitting sources. 75 FR 82536. 

The Montana SIP contains adequate provisions prohibiting any source or type of emiss

the State from emitting any air pollutant in any amounts that will contribute significantly 

or interfere with the maintenance by any other State with respect to the ozone NAAQS. 

regulations are included in ARM Chapter 17.8, subchapters 7, 8, 9, 10, 16, and 17. 

Sources in Montana are subject to permit requirements pursuant to NSR and Montana 

(MAQP) requirements. Montana law requires that any proposal constructing a new sou

potential to emit 25 tons per year or greater or modifying a facility that has the potential 

greater than 5 tons per year of ozone Precursor emissions (nitrogen oxides and volatile 

would be subject to the requirements of the MAQP rules in ARM 17.8.740, et seq. The 

prohibited from legally operating without first applying for and obtaining a major NSR pe

provisions of ARM 17.8.801, et seq. 

DRAFT Montana ozone NAAQS llO(a)(2) Infrastructure SIP Certification 
respect to any such In addition to controls that may be required under the MAQP program and NSR, source

national primary or required to comply with control, emission limitations, and monitoring requirements unde

secondary ambient Maximum Achievable Control Technology (MACT) and New Source Performance Stan

air quality standard. may minimize any ozone precursor emissions. These rules, current operating practice

(II) Interfere with equipment prevent sources in Montana from emitting ozone precursor emissions in am

measures required contribute significantly to non-attainment in or interfere with the maintenance by any ot

to be included in the to the ozone NAAQS. It would appear unlikely ozone would contribute significantly to n

applicable states. With regard to the 11 O(a)(2)(D)(i)(ll) visibility requirement, ozone is generally in

implementation plan impacts on visibility impairment, and significant impacts from ozone emissions are mos

for any other State state boarders. Due to the limited amount of ozone in Montana, the Department has co

under part C to from Montana: 

prevent significant 

deterioration of air 1) Does not significantly contribute to nonattainment in or interfere with maintenance fo

quality or to protect regards to the ozone NAAQS; 

visibility. 2) Does not interfere with the measures required to implement prevention of significant 

(ii) Insure compliance the protection of visibility in any other State; and 

with the applicable 3) Does not preclude the State from insuring compliance with CAA section §126 and §

requirements CAA 

sections § 126 and 115 Consistent with 40 CFR 166(q)(2)(iv), Montana's PSD program requires the Departmen

(interstate and affected states, tribes, and federal land managers of its intent to approve or disapprove 

international pollution application. ARM 17.8.826. 

abatement). 

Provide: (i) necessary Whenever Montana revises its SIP, the submittal includes copies of the appropriate rul

assurances that the document that the state has adopted the emission limitations and other measures nece

state (or, except where and maintenance of any NAAQS, including the 2008 ozone NAAQS. No organizations 

the administrator Department will participate in implementing or enforcing this SIP. 

deems inappropriate, 

the general purpose No state or federal provisions prohibit the implementation of any provision of the Monta

local government or devotes adequate resources to SIP development and maintenance sufficient to ensure 

governments, or a maintenance of the NAAQS for ozone. Montana receives, from EPA, grant monies inte

§110(a)(2) regional agency programs to protect NAAQS. Montana allocates a portion of the EPA grant money to f

(E)(i) designated by the state attainment and maintenance of the NAAQS. Montana imposes and collects fees from 

or general purpose Montana allocates all of the permit fee revenue to activities associated with permitting 

local governments for regulated sources of air pollutants, including criteria pollutant emissions. Montana also 

such purpose) will have 

adequate personnel, general funds to conduct state air quality program activities. Montana allocates all stat

funding, and authority non-permit air program activities, including SIP programs for attainment and maintenan

under state (and, as The Air Resources Management Bureau has 49.14 fulltime equivalent positions with an 

appropriate, local) law 

to carry out such budget of $5,695,973 dollars for state fiscal year 2014. The program funding is broken 

DRAFT Montana ozone NAAQS 110(a)(2) Infrastructure SIP Certification 
implementation plan $163,406 from state general funds, $1,562,606 from federal grants, and $3,969,961 fro

(and is not prohibited Montana does not anticipate the need for additional resources to implement the plan fo

by any provision of beyond those which have been utilized for the preparation of the plan and plan revision

federal or state law and other current programmatic demands. Montana anticipates funding amounts will re

from carrying out such over the next five years. 

implementation plan or portion thereof). The provisions in state law which provide for adequate resources are contained in the M

seq., MCA. More specifically, those provisions are contained in 75-2-102, 75-2-111, an

(ii) requirements that 

§110(a)(2) 

the state comply with Montana is a state that does not have a board or body that approves permits or enforce

the requirements the federal Clean Air Act. Laws related to conflict of interest in Montana state governm

(E)(ii) respecting state 2-101, et seq., MCA. 

boards, and 

(iii) Necessary 

assurances that, where 

the state has relied on 

a local or regional 

government, agency, or There are five county air pollution control programs authorized to carry out certain portio

§11 O(a)(2) instrumentality for the within their respective county boundary. See § 75-2-102 and 75-2-301, MCA. The Dep

(E)(iii) implementation of any retain oversight authority in the event the local authority fails to act. § 75-2-111 and 75-

plan provision, the state 

has responsibility for 

ensuring adequate 

implementation of such plan provision. 

Require, as may be Montana requires stationary sources subject to state regulation to annually submit all in

prescribed by the to complete a source emissions inventory. Affected permits require emissions monitori

Administrator: (i) the sources of air pollution. Further, on an annual basis, the Department compiles a statew

installation, inventory of all regulated sources for the evaluation of compliance with applicable stand

maintenance, and EPA database. replacement of 

§11 O(a)(2) equipment, and the 

(F) implementation of other State Rule(s) Federal Action Actio

necessary steps by ARM 17.8.105 Approved 66 

owners or operators of 

stationary sources to ARM 17.8.106 Approved* 66 

monitor emissions from ARM 17.8.505 Not submitted Stat

such sources, *EPA subsequently approved revisions to many of these rules promulgated in later Federal Regis

(ii) periodic reports on for those revisions upon which EPA failed to act and which are currently being addressed as part 

the nature and amounts 8 SIP backlog initiative. 

DRAFT Montana ozone NAAQS 110(a)(2) Infrastructure SIP Certification 
of emissions and 

emissions-related data 

from such sources, and 

(iii) correlation of such 

reports by the state 

agency with any emission limitations or 

standards established 

pursuant to this Act, 

which reports shall be 

available at reasonable 

times for public 

inspection; 

Provide for authority 

comparable to that in 

§110(a)(2) section 303 and On January 3, 2006, EPA approved Montana's Emergency Episode Avoidance Plan (E

(G) adequate contingency 

plans to implement 

such authority. 

Provide for revision of 

such plan: (i) from time 

to time as may be 

necessary to take 

account of revisions of Montana's SIP is a compilation of regulations, plans, and submittals that act to improve 

such national primary quality in accordance with national standards. The MT CAA confers upon the BER the 

or secondary ambient amend, and repeal rules for administering, implementing, and enforcing rules promulga

air quality standard or 

the availability of emissions of air pollutants, including rules necessary to establish measures to attain an

improved or more NAAQS. The Governor submits for inclusion into the SIP rules determined to be neces

§110(a)(2) expeditious methods of maintain the NAAQS. (H) attaining such standard, State law contains provisions for adoption of rules and regulations in the MT CAA, 75-2

and (ii) except as 

provided in paragraph More specifically, those provisions are contained in 75-2-102, MCA, Intent- Policy and 

(3)(C), whenever the MCA, Powers of the Board and 75-2-112, MCA, Powers and Responsibilities of Depart

Administrator finds on Montana's statutory or regulatory authority prohibits the State from revising the SIP in t

the basis of information to the NAAQS. 

available to the 

Administrator that the 

plan is substantially 

inadeQuate to attain the 

DRAFT Montana ozone NAAQS II O(a)(2) Infrastructure SIP Certification 
§110(a)(2) 

(I) 

§110(a)(2) 

(J) 

national ambient air 

quality standard which 

it implements, or to 

otherwise comply with 

any additional 

requirements 

established under this 

Act. 

In the case of a plan or 

plan revision for an 

area designated as a 

NM, meet the 

applicable requirements 

of part D (relating to 

NM); 

Meet the applicable 

requirements of § 121 

(relating to 

consultation), section 

127 (relating to public 

notification), and Part C 

(relating to prevention 

of significant deterioration of air 

quality and visibility 

protection); 

All control plans for NMs in Montana are prepared in accordance with the applicable re

USC 7501-7505. NM plans required under part Dare required on a different schedule 

11 O(a)(2) infrastructure elements and will be reviewed and acted upon through a separa

currently approved NM SIP provisions listed in 40 CFR 52, Subpart BB also meet Sub

Montana satisfies EPA's requirements for intergovernmental relations, see 59 FR 2988

changed or revoked consultation processes since that time. Montana holds public mee

on all SIP revisions in accordance with 40 CFR 51, Appendix V and Montana's open m

203, MCA. 

On January 3, 2006, EPA approved Montana's EEAP in 71 FR 19. Montana's EEAP p

pollutants, including ozone. The EEAP contains provisions for disseminating informatio

exceedance of the NMOS to appropriate news media, health officials, law enforcemen

Department notice includes recommendations for actions citizens may take to reduce th

activities and reduce their exposure. Montana also complies with 40 CFR §51.930 duri

events. 

Congress directed States to develop and implement measures to prevent significant de

quality pursuant to 42 USC §7471. Montana adopted permitting requirements for majo

to modify or construct; PSD rules in Subchapter 8 and nonattainment NSR rules in Sub

17, Chapter 8, ARM. Montana continues to implement and enforce these rules. Monta

Federal Land Managers as needed and/or required. 

State Rule(s) I Federal Action I Actio

ARM 17.8.801 et seq. I Approved* I 60 

ARM 17.8.1001 et seq. I Approved* I 60 

*EPA subsequently approved revisions to many of these rules promulgated in later Federal Regis

for those revisions upon which EPA failed to act and which are currently being addressed as part 

8 SIP backlog initiative. 

DRAFT Montana ozone NAAQS IIO(a)(2) Infrastructure SIP Certification 
EPA Region VIII has developed a Regional Haze Federal Implementation Plan (RH FIP

RH FIP will provide further visibility protection and improvements to federal Class I area

Provide for: Montana requires an applicant proposing to construct or modify a source of criteria poll

(i) the performance of the facility can be expected to operate in compliance with applicable law and that it will 

such air quality contribute to a violation of any NAAQS. Sources subject to the provisions of Title 17, C

modeling as the subchapters 7, 8, 9, and 10, ARM (regulating construction of new or modified stationary 

Administrator may with PSD and NSR requirements) shall demonstrate the facility can be expected to ope

prescribe for the 

purpose of predicting 

with applicable law and that it will not cause or contribute to a violation of any NAAQS. 

the effect on ambient State Rule(s) Federal Action* Actio

air quality of any ARM 17.8.701 et seq. approved 60 

§110(a)(2) emissions of any air ARM 17.8.801 et seq. approved 60 

(K) pollutant for which the 

Administrator has ARM 17.8.901 et se_q. approved 60 

established a national ARM 17.8.1001 et seq. approved 60 

ambient air quality *EPA subsequently approved revisions to many of these rules promulgated in later Federal Reg

standard, and for those revisions upon which EPA failed to act and which are currently being addressed as par

(ii) the submission, 8 SIP backlog initiative. 

upon request, of data 

related to such air Absent any privacy restrictions regarding the release of confidential business informatio

quality modeling to the data and analysis regarding the results of source predictive modeling for purposes of N

Administrator; public information available for anyone, including EPA, to review upon request. 

Require the owner or 

operator of each major 

stationary source to 

pay to the permitting Montana has an approved Title V permitting program. Montana requires an applicant p

authority, as a or modify an air pollution source to pay an application fee. See ARM 17.8.504. Pursua

condition of any permit Montana assesses an annual air quality operation fee against the owner or operator of 

required under this MAQP, or an operating permit, or which is registered with the Department as an oil and 

§110(a)(2) Act, a fee sufficient to ARM 17.8.1701, et seq. 

(L) cover- (i) the reasonable State Rule(s) Federal Action Actio

costs of reviewing and ARM 17.8.504 Not submitted Sta

acting upon any application for such a ARM 17.8.505 Not submitted Sta

permit, and ARM 17.8.1701, et seq. Proposed approval 77 

(ii) if the owner or 

operator receives a 

permit for such source, 

DRAFT Montana ozone NAAQS II O(a)(2) Infrastructure SIP Certification 
the reasonable costs of 

implementing and 

enforcing the terms and 

conditions of any such 

permit (not including 

any court costs or other 

costs associated with 

any enforcement action), until such fee 

requirement is 

superseded with 

respect to such sources 

by the Administrator's 

approval of a fee 

program under title V; 

As a matter of practice, the Department consults with the local agencies when necessa

control plan for a NAA. The Department also meets with county air pollution control pro

discusses monitoring issues, including ozone, prior to making decisions regarding mon

type, locations, and monitoring schedules. 

Provide for 

Section 75-2-112(2)0) of the MT CAA requires the Department to " ... advise, consult, co

with other agencies of the state, local governments, industries, other states, interstate a

§110(a)(2) 

consultation and agencies, the United States, and any interested persons or groups; ... " 

(M) participation by local political subdivisions Parties affected by Department actions, including local political subdivisions, may petitio

affected by the plan. hearing and address of their grievances, see ARM 17.8.140, 17.8.141 and 17.8.142. 

State Rule(s) Federal Action Actio

ARM 17.8.140 Approved 66 ARM 17.8.141 Approved 66 

ARM 17.8.142 Approved 66 

DRAFT Montana ozone NAAQS llO(a)(2) Infrastructure SIP Certification