Approval and Promulgation of Implementation Plans; Klamath Falls, Oregon Nonattainment Area; Fine Particulate Matter Emissions Inventory and SIP Strengthening Measures, 78372-78376 [2014-30498]

Agencies

• ENVIRONMENTAL PROTECTION AGENCY

[Federal Register Volume 79, Number 249 (Tuesday, December 30, 2014)]
[Proposed Rules]
[Pages 78372-78376]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2014-30498]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R10-OAR-2013-0005; FRL-9920-97-Region 10]


Approval and Promulgation of Implementation Plans; Klamath Falls, 
Oregon Nonattainment Area; Fine Particulate Matter Emissions Inventory 
and SIP Strengthening Measures

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Oregon Department of Environmental Quality (ODEQ) 
submitted a revision to the State Implementation Plan (SIP), dated 
December 14, 2012, to address Clean Air Act (CAA or the Act) 
requirements for the Klamath Falls, Oregon nonattainment area for the 
2006 24-hour fine particulate matter (PM2.5) national 
ambient air quality standard (NAAQS). The EPA proposes to approve the 
emissions inventory contained in the ODEQ's submittal as meeting the 
requirement to submit a comprehensive, accurate, and current inventory 
of direct PM2.5 and PM2.5 precursor emissions in 
Klamath Falls, Oregon. The EPA also proposes to approve 
PM2.5 control measures contained in the December 2012 
submittal because incorporation of these measures will strengthen the 
Oregon SIP and reduce sources of PM2.5 emissions in the 
Klamath Falls, Oregon nonattainment area (Klamath Falls NAA) that 
contribute to violations of the 2006 PM2.5 NAAQS.

DATES: Comments must be received on or before January 29, 2015.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R10-
OAR-2013-0005, by any of the following methods:
     www.regulations.gov: Follow the on-line instructions for 
submitting comments.
     Email: R10-Public_Comments@epa.gov.
     Mail: Justin A. Spenillo, EPA Region 10, Office of Air, 
Waste and Toxics (AWT-150), 1200 Sixth Avenue, Suite 900, Seattle, WA 
98101.
     Hand Delivery/Courier: EPA Region 10, 1200 Sixth Avenue, 
Suite 900, Seattle, WA 98101. Attention: Justin A. Spenillo, Office of 
Air, Waste and Toxics, AWT-150. Such deliveries are only accepted 
during normal hours of operation, and special arrangements should be 
made for deliveries of boxed information
    Instructions: Direct your comments to Docket ID No. EPA-R10-OAR-
2013-0005. The EPA's policy is that all comments received will be 
included in the public docket without change and may be made available 
online at www.regulations.gov, including any personal information 
provided, unless the comment includes information claimed to be 
Confidential Business Information (CBI) or other information the 
disclosure of which is restricted by statute. Do not submit information 
that you consider to be CBI or otherwise protected through 
www.regulations.gov or email. The www.regulations.gov Web site is an 
``anonymous access'' system, which means the EPA will not know your 
identity or contact information unless you provide it in the body of 
your comment. If you send an email comment directly to the EPA without 
going through www.regulations.gov your email address will be 
automatically captured and included as part of the comment that is 
placed in the public docket and made available on the Internet. If you 
submit an electronic comment, the EPA recommends that you include your 
name and other contact information in the body of your comment and with 
any disk or CD-ROM you submit. If the EPA cannot read your comment due 
to technical difficulties and cannot contact you for clarification, the 
EPA may not be able to consider your comment. Electronic files should 
avoid the use of special characters, any form of encryption, and be 
free of any defects or viruses.
    Docket: All documents in the docket are listed in the 
www.regulations.gov index. Although listed in the index, some 
information is not publicly available, e.g., CBI or other information, 
the disclosure of which is restricted by statute. Certain other 
material, such as copyrighted material, is not placed on the Internet 
and will be publicly available only in hard copy. Publicly available 
docket materials are available either electronically in 
www.regulations.gov or in hard copy during normal business hours at the 
Office of Air, Waste and Toxics, EPA Region 10, 1200 Sixth Avenue, 
Seattle WA, 98101.

FOR FURTHER INFORMATION CONTACT: Justin A. Spenillo at (206) 553-6125, 
spenillo.justin@epa.gov, or the above EPA, Region 10 address.

SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,'' 
``us,'' or ``our'' is used, we mean the EPA.

Table of Contents

I. Background
    A. PM2.5 National Ambient Air Quality Standards
    B. Designation of PM2.5 Nonattainment Areas
    C. Submittal Requirements for PM2.5 Nonattainment 
Areas
II. Analysis of the State's Submittal
    A. Emissions Inventory
    B. Description of the Klamath County PM2.5 Control 
Measures
III. Proposed Action
IV. Statutory and Executive Order Reviews

I. Background

A. PM2.5 National Ambient Air Quality Standards

    Under section 109 of the CAA, the EPA establishes NAAQS for certain 
pervasive air pollutants (referred to as ``criteria pollutants'') and 
conducts periodic reviews of the NAAQS to determine whether they should 
be revised or whether new NAAQS should be established. After a new 
NAAQS is established or an existing NAAQS is revised, all areas across 
the country are evaluated to determine whether they meet the new or 
revised standard, and

[[Page 78373]]

area designations are promulgated based on that evaluation.
    On July 18, 1997, the EPA revised the NAAQS for particulate matter 
to add new standards for fine particles, using PM2.5 
(particles less than or equal to 2.5 micrometers in aerodynamic 
diameter) as the indicator for the pollutant. The EPA established 
primary and secondary \1\ annual and 24-hour standards for 
PM2.5 (62 FR 38652). The annual standard was set at 15.0 
micrograms per cubic meter ([mu]g/m\3\), based on a 3-year average of 
the annual mean PM2.5 concentrations, and the 24-hour 
standard was set at 65 [mu]g/m\3\, based on the 3-year average of the 
98th percentile of 24-hour PM2.5 concentrations. On October 
17, 2006, the EPA revised the level of the 24-hour PM2.5 
NAAQS to 35 [mu]g/m\3\, based on a 3-year average of the 98th 
percentile of 24-hour concentrations (71 FR 61144). On December 14, 
2012, the EPA revised the primary annual PM2.5 NAAQS to 
provide increased protection of public health and welfare from fine 
particle pollution (78 FR 3086, January 15, 2013). In that action, the 
EPA revised the primary annual PM2.5 standard, strengthening 
it from 15.0 micrograms per cubic meter ([mu]g/m\3\) to 12.0 [mu]g/
m\3\, which is attained when the 3-year average of the annual 
arithmetic means does not exceed 12.0 [mu]g/m\3\.
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    \1\ For a given air pollutant, ``primary'' national ambient air 
quality standards are those determined by the EPA as requisite to 
protect the public health, and ``secondary'' standards are those 
determined by the EPA as requisite to protect the public welfare 
from any known or anticipated adverse effects associated with the 
presence of such air pollutant in the ambient air. See CAA section 
109(b).
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B. Designation of PM2.5 Nonattainment Areas

    Effective December 14, 2009, the EPA established the initial air 
quality designations for most areas in the United States for the 2006 
24-hour PM2.5 NAAQS (74 FR 58688, November 13, 2009). The 
Klamath Falls area was designated nonattainment for the 2006 24-hour 
PM2.5 NAAQS. The boundaries for this area are described in 
40 CFR 81.338.

C. Submittal Requirements for PM2.5 Nonattainment Areas

    In March 2012, the EPA issued guidance to states for implementation 
of the 2006 PM2.5 NAAQS (March 2012 Implementation 
Guidance).\2\ The guidance recommended that states make submissions for 
the 2006 PM2.5 NAAQS consistent with the substantive 
requirements developed for implementation of the 1997 PM2.5 
NAAQS at 40 CFR part 51, subpart Z (Provisions for Implementation of 
PM2.5 National Ambient Air Quality Standards, 40 CFR 
51.1000, et seq.). In December 2012, based on the March 2012 
Implementation Guidance, the ODEQ submitted a SIP revision intended to 
address the nonattainment planning requirements for the Klamath Falls 
NAA.
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    \2\ Memorandum from Stephen D. Page, Implementation Guidance for 
the 2006 24-Hour Fine Particulate (PM2.5) National 
Ambient Air Quality Standards (Mar. 2, 2012).
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    On January 4, 2013, the Court of Appeals for the District of 
Columbia remanded to the EPA the Clean Air Fine Particle Implementation 
Rule (72 FR 20586, Apr. 25, 2007) (hereafter referred to as the 
``PM2.5 implementation rule'') which formed the basis of the 
40 CFR part 51, subpart Z nonattainment planning requirements. Natural 
Resources Defense Council v. EPA, 706 F.3d 428 (D.C. Cir. 2013). The 
Court concluded that the EPA had improperly based the PM2.5 
implementation rule solely upon the requirements of part D, subpart 1 
of the CAA, and had failed to address the requirements of part D, 
subpart 4. As a result of the Court's remand of the PM2.5 
implementation rule, the EPA withdrew its March 2012 Implementation 
Guidance because it was based largely on the remanded rule promulgated 
to implement the 1997 PM2.5 NAAQS.\3\ The EPA is currently 
engaged in rulemaking to address the Court's remand of the 
PM2.5 implementation rule. In the interim, however, the EPA 
continues to take action on SIP submissions from states intended to 
address nonattainment planning requirements for the 2006 
PM2.5 NAAQS, consistent with the CAA.
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    \3\ Memorandum from Stephen D. Page, Withdrawal of 
Implementation Guidance for the 2006 24-Hour Fine Particle 
(PM2.5) National Ambient Air Quality Standards (Jun. 6, 
2013).
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    This action is limited to proposing approval of the emissions 
inventory of direct PM2.5 and PM2.5 precursors 
submitted by the ODEQ for the Klamath Falls NAA as required under 
section 172(c)(3) of the CAA, and the approval of specific control 
measures that are expected to strengthen the SIP. These control 
measures independently meet requirements for control measures in 
attainment plans and the emissions reductions they achieve will 
contribute to attainment of the 2006 PM2.5 NAAQS in the 
Klamath Falls NAA.

II. Analysis of the State's Submittal

A. Emissions Inventory

    The EPA promulgated emissions inventory requirements for the 1997 
PM2.5 NAAQS as part of the PM2.5 implementation 
rule at 40 CFR 51.1008. The decision in NRDC v. EPA remanded the 
PM2.5 implementation rule because it did not incorporate the 
specific particulate matter requirements of subpart 4, part D, title I. 
The emission inventory requirements set forth in the PM2.5 
implementation rule were based on the CAA section 172(c)(3) 
requirements in subpart 1. Subpart 4 contains no specific provision 
governing emissions inventories for PM10 or PM2.5 
nonattainment areas that supersedes the general emissions inventory 
requirement for all nonattainment areas in section 172(c)(3). See 
``State Implementation Plans; General Preamble for the Implementation 
of Title I of the Clean Air Act Amendments of 1990,'' (57 FR 13498, 
13539, April 16, 1992) (hereinafter ``General Preamble''). Accordingly, 
the EPA is evaluating the ODEQ's emissions inventory for the Klamath 
Falls NAA pursuant to the CAA requirements in section 172(c)(3).
    Section 172(c)(3) of the CAA requires a state with an area 
designated as nonattainment to submit to the EPA for approval a 
comprehensive, accurate, and current inventory of actual emissions of 
the pollutant at issue, including emissions of any precursor of that 
pollutant, for the nonattainment area. These inventories provide a 
detailed accounting of all emissions and emissions sources by pollutant 
and precursor pollutant within the nonattainment area. In addition, 
inventories are used to model air quality to demonstrate attainment of 
the 2006 PM2.5 NAAQS as expeditiously as practicable. The 
EPA reviewed, in accordance with the August 2005 EPA guidance, 
``Emissions Inventory Guidance for Implementation of Ozone and 
Particulate Matter NAAQS and Regional Haze Regulations,'' the 
procedures and methodologies used by the ODEQ to develop the emission 
inventory for the 2008 base year emissions inventory for the Klamath 
Falls NAA. In accordance with section 172(c)(3) and consistent with EPA 
guidance, Oregon's attainment plan as described below includes a 
comprehensive, accurate, and current inventory of emissions of all 
direct PM2.5 and PM2.5 precursors in the Klamath 
Falls NAA.
    To develop an emissions inventory that matches the conditions under 
which the design value concentration are measured, the ODEQ emissions 
inventory addresses annual emissions, typical season day emissions, and 
worst case day emissions. Annual emissions, measured in tons per year 
(``tpy''), are the total amount of emissions over the course of a 
calendar year. The typical season day and worst-case day

[[Page 78374]]

emissions are measured in pounds (lbs) per day and are calculated for 
the PM season, which is the four-month period between November and 
February when ambient PM concentrations from anthropogenic sources are 
generally the highest. Typical season day emissions are the average 
emissions over the four-month PM season, and worst case day emissions 
are the amount emitted on winter days with a diurnal temperature range 
representative of PM2.5 exceedances. Most source categories 
are modeled using the typical season day emissions. Worst-case day 
emissions are better suited for select sources, such as residential 
wood combustion and motor vehicles, with emissions highly dependent on 
temperature. At colder temperatures there is a behavioral increase in 
home heating using woodstoves, and vehicle emissions associated with 
start-up emissions are higher on colder days.
    The year 2008 was selected by ODEQ as the base year for the 
emissions inventory because it was the most recent year that Oregon 
completed the NEI data submittal prior to the designation of the 
Klamath Falls NAA in 2009. The selection of 2008 as the baseline year 
for the emissions inventory is consistent with the emissions inventory 
requirement in section 172(c)(3) because it provides an inventory of 
emissions for one of the years relied upon for the nonattainment 
designation. The ODEQ's 2008 base year emissions inventory includes 
emissions of direct PM2.5 and PM2.5 precursors 
that cover the general source categories of stationary point sources, 
stationary nonpoint sources (area sources), non-road mobile sources, 
and on-road mobile sources. The main sources of emissions in the 
Klamath Falls NAA are residential wood combustion, mobile and non-road 
sources, and point sources. The pollutants that comprise the 2008 base 
year inventory include direct PM2.5 and the precursors to 
the formation of PM2.5 which are nitrogen oxide 
(NOX), volatile organic compounds (VOCs), ammonia 
(NH3), and sulfur dioxide (SO2).
    The point source inventory provides facility-specific data for 
point source emissions from Klamath Falls' permitted stationary 
sources. Permitted point sources include industrial sources, non-
industrial sources, gas stations, crematories, and portable sources. 
The emissions inventory includes actual point source emissions for both 
the annual and the seasonal inventory. For purposes of the worst-case 
day emission inventory, the emissions for permitted point sources are 
reported at 80% of the permitted operating capacity because such 
specific daily actual emissions are not available for permitted point 
sources in the same manner as annual and typical season emissions. The 
EPA agrees that 80% of permitted emissions is a conservative estimate 
for worst-case day actual emissions and, given that permitted point 
sources were not found to be significantly contributing to the 
monitored violations. This will be further discussed in a future notice 
when the EPA acts on the ODEQ's control strategy for the Klamath Falls 
NAA.
    The complete inventory, located in the docket for this rulemaking, 
also includes a description of minor non-permitted point sources. Area 
sources for the Klamath Falls NAA are divided into six groups: Waste 
disposal, treatment and recovery; small stationary fossil fuel 
combustion; residential wood combustion; fugitive dust; evaporative/
off-gassing emissions sources; and miscellaneous area sources. The on-
road mobile source emissions inventory includes all sources of mobile 
exhaust, brake, and tire emissions generated by passenger vehicles, 
trucks, miscellaneous vehicles, and re-entrained road dust. Non-road 
mobile sources inventoried include aircraft, gasoline and diesel-
powered vehicles and equipment, recreational marine vessels, and 
trains.
    The ODEQ compiled the emissions inventory relying on information 
from a variety of sources. Permitted point source emissions data were 
taken from the ODEQ Tracking Reporting and Administration of Air 
Contaminant Sources (TRAACS) database which is submitted to the EPA 
National Emissions Inventory System. Many area source emissions were 
taken from the 2008 EPA National Emissions Inventory (NEI) v.1.5. The 
ODEQ Area Mobile Emissions Estimates (AMEE) database was also a source 
of emissions data for mobile emissions. Additional emissions 
information was taken from a 2007/2008 residential wood combustion 
survey and from use of the EPA Motor Vehicle Emission Simulator 
(MOVES). All remaining emissions were modeled or inventoried 
specifically for this attainment plan. The full emissions inventory 
submitted by the ODEQ and a detailed description of the methodology 
used to compile the inventory is presented in Attachment 3.3l of the 
SIP submittal included in the docket for this action.
    Table 1 summarizes the annual emissions for Klamath Falls in 2008 
and Table 2 summarizes the worst-case day emissions for Klamath Falls 
in 2008. Typical season day emissions information can be found in 
Attachment 3.3l of the SIP submittal included in the docket for this 
action.

                                  Table 1--2008 Klamath Falls, Annual Emissions
                                                      [tpy]
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          Source sector                PM2.5            SOX             NOX             NH3             VOC
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Point...........................           143.4            47.8           329.3            70.4           997.2
Area............................           403.0            49.1           114.3           161.9           972.9
Onroad..........................            92.2             6.4         1,431.6            11.4           694.2
Nonroad.........................            16.1             6.6           360.9  ..............           246.0
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    Total.......................           654.7           109.9         2,236.1           243.7         2,910.4
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                                   Table 2--2008 Klamath Falls, Worst-Case Day
                                                    [lbs/day]
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          Source sector                PM2.5            SOX             NOX             NH3             VOC
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Point...........................           1,517             357           3,247           1,453          10,301
Area............................           2,851             546           1,391             772           6,483
Onroad..........................             917              36           7,990              62           4,734

[[Page 78375]]

 
Nonroad.........................             135             108           2,855  ..............             876
rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
    Total.......................           5,420           1,046          15,483           2,287          22,754
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    The EPA reviewed the results, procedures and methodologies for the 
2008 base year emissions inventory in accordance with the EPA's current 
guidance, ``Emissions Inventory Guidance for Implementation of Ozone 
and Particulate Matter NAAQS and Regional Haze Regulations'' (August 
2005). The ODEQ used standard procedures to develop the emissions 
inventory and appropriately used seasonal and worst-case day emissions 
inventories to represent episodic meteorological conditions when 
PM2.5 levels are of the greatest concern. For this reason, 
the EPA is proposing approval of Klamath Falls' 2008 base year 
emissions inventory as meeting the requirements of section 172(c)(3) of 
the CAA.

B. Description of the Klamath County PM2.5 Control Measures

    On December 12, 2012, the ODEQ submitted to the EPA for approval 
revisions to a number of rules related to the Klamath Falls NAA. These 
revisions consist of updates to identify the Klamath Falls NAA and to 
adopt local and state measures to ensure permanent and enforceable 
control strategies intended to bring the area back into attainment 
through control of PM2.5 and its precursors. Specifically, 
the ODEQ revised rules in Oregon Administrative Rules (OAR) Chapter 
340, Divisions 200, 204, 225, 240, 262, and 264. These revisions, and 
the EPA's proposed actions on them, are described below.
Division 204: Designation of Air Quality Areas
    The ODEQ revised OAR Chapter 340, Division 204 to include a 
description of the Klamath Falls PM2.5 NAA boundary. The EPA 
proposes to approve and incorporate by reference (IBR) this revision 
into the SIP because the area description is essential for delineating 
the nonattainment area, and we believe the area description is 
consistent with the EPA description in the designation for the area.
Division 225: Air Quality Analysis Requirements
    The ODEQ revised OAR 340-225-0090, in conjunction with promulgating 
OAR 340-240-0550, as encouragement for direct PM10 and 
PM2.5 emissions reductions from residential wood-fired 
devices as a means to offset, in an equal or greater amount, emissions 
increases from new major sources or major modifications to major 
sources located in the Klamath Falls NAA, provided such sources do not 
cause or contribute to a violation of the NAAQS. The revisions to OAR 
340-225-0090 exempt a source which proposes to use qualifying woodstove 
offsets from the need to conduct an air dispersion modeling analysis to 
demonstrate a net air quality benefit as would otherwise be required. 
Woodstove emissions are the primary source of PM2.5 
emissions contributing to NAAQS violations in the NAA and reductions in 
woodstove emissions would presumptively result in a net air quality 
benefit when used to offset new emissions from a stationary source 
located within the NAA. A source proposing to use other sources of 
emission offsets, or woodstove offsets that don't meet the requirements 
of OAR 340-240-0550, would still need to conduct a dispersion modeling 
analysis to demonstrate a net air quality benefit. The revisions are 
designed to maintain and promote continued air quality improvement 
while allowing for economic growth that does not negatively affect the 
airshed.
    In a letter dated September 15, 2014, Oregon withdrew the submitted 
SIP revision for OAR 340-225-0090(2)(a)(C). Accordingly, the EPA is not 
acting on the revisions to OAR 340-225-0090(2)(a)(C) which establish 
inter-pollutant offset ratios. Oregon may submit a revision in the 
future establishing inter-pollutant offset ratios supported by an 
appropriate demonstration, or alternatively revise these ratios in 
accordance with the July 21, 2011, EPA memorandum that addresses the 
Federal inter-pollutant offset policy (76 FR 80747). The EPA proposes 
to approve and IBR the revisions to OAR 340-225-0090, except for OAR 
340-225-0090(2)(a)(C), and the revision to 340-225-0090(2)(a)(B) based 
on the PM2.5 inter-pollutant offset ratio, as it provides 
equivalent protection of the NAAQS and encourages improved air quality 
by reducing direct PM emissions from wood fired devices in the Klamath 
Falls NAA.
Division 240: Rules for Areas With Unique Air Quality Needs
    Revisions to OAR 340-240-0110, 340-240-0030, 340-240-0500, 340-240-
0510, 340-240-0520, 340-240-0530, 340-240-0540, 340-240-0550, 340-240-
0560, describe and allow for the implementation of multiple control 
measures associated with emissions of PM2.5 in the Klamath 
Falls NAA. The ODEQ updated the rule definitions to include necessary 
cross-references to applicable rules and to add new definitions needed 
for implementation of the control measures. Control measures include 
opacity standards, fugitive emissions control, operation and 
maintenance plan requirements, industrial source compliance schedules, 
and residential wood fuel-fired device offset requirements for new 
sources, and PM2.5 and PM10 offsets.
    The 20% opacity standard and fugitive emissions control rules limit 
emissions being emitted into the Klamath Falls NAA from stationary 
sources including industrial facilities. The operation and maintenance 
plan requirements and the industrial source compliance schedule (a 
schedule to develop and implement a plan for compliance with the 
opacity standards, fugitive emissions requirements, and operations and 
maintenance plans listed in OAR 340-240-0510 through -0540), support 
reduced particulate matter emissions through enhanced management of 
source operation. The offsets rules in OAR 340-240-0550, in 
coordination with the rule revisions in OAR Chapter 340, Division 225, 
allow for offsets to be obtained within the Klamath Falls NAA from 
residential wood combustion at a ratio of one ton of PM2.5 
emissions to one ton of woodstove emissions reductions while ensuring 
that the increased emissions from new or modified sources will not 
cause or contribute to a violation of the NAAQS. The EPA proposes to 
approve these rules as they are permanent and enforceable SIP 
strengthening measures that contribute to progress toward attainment of 
the 2006 PM2.5 24-hr NAAQS in this area.

[[Page 78376]]

Division 264: Rules for Open Burning
    The revisions to OAR Chapter 340, Division 264 enhance the open 
burning rule in Oregon and the Klamath Falls NAA. Specifically, the 
revised rule includes language aligning open burning with ideal 
dispersion conditions; provides a description and map of the Klamath 
Basin Open Burning Control Area; and provides rules specific to the 
Klamath Falls NAA prohibiting open burning from industrial, commercial, 
construction and demolition operations. The rule revisions will reduce 
emissions through the prohibition of open burning within the Klamath 
Falls NAA. The EPA proposes to approve and IBR these rule revisions 
because they are permanent and enforceable measures that support 
attainment and maintenance of the NAAQS by reducing the amount of 
particulate matter in the area.
Klamath County Clean Air Ordinances
    In its December 12, 2012 submittal, the ODEQ included as control 
measures the 2007 and 2012 Klamath County Clean Air Ordinances. These 
two ordinances establish permanent and enforceable control measures on 
sources that account for the majority of PM2.5 emissions in 
the Klamath Falls NAA. The 2007 Klamath County Clean Air Ordinance is 
more specifically identified as Chapter 406, Ordinance No. 63.05, 
enacted August 7, 2007 (2007 Ordinance). The 2012 Klamath County Clean 
Air Ordinance is more specifically identified as Chapter 406, Ordinance 
No. 63.06, enacted December 31, 2012 (2012 Ordinance).
    The 2007 and 2012 Ordinances were enacted to control emissions from 
home heating devices for the purpose of meeting the 2006 
PM2.5 24-hr NAAQS. The 2007 ordinance provides for lower 
thresholds for yellow and red air quality advisory days which require 
the curtailment of wood burning and therefore reduce emissions of 
PM2.5 and PM2.5 precursors. With these lower 
thresholds, wood burning restrictions would be in place on days that 
most likely contribute to a 24-hour NAAQS violation. This provision, in 
conjunction with increased enforcement at the County level, is expected 
to be a core part of the area's attainment plan. The 2007 ordinance has 
provisions identical to the state wide Heat Smart Program that require 
removal of uncertified stoves upon sale of a home, and also provisions 
that reduce the number of available residential open burning days and 
prohibit the use of burn barrels. The 2012 ordinance required new and 
retrofit fireplaces to meet lower emissions standards.
    The EPA proposes to approve and IBR the 2007 and 2012 Klamath Falls 
Clean Air Ordinances because they support attainment and maintenance of 
the NAAQS in the Klamath Falls NAA.

III. Proposed Action

    The EPA proposes to approve the PM2.5 and 
PM2.5 precursor emissions inventory for the Klamath Falls 
NAA, submitted by ODEQ on December 12, 2012, as meeting the emissions 
inventory requirements of section 172(c)(3) of the CAA for 2006 
PM2.5 24-hr NAAQS nonattainment area planning. The EPA also 
proposes to approve and incorporate into the SIP the specific control 
measures submitted by the ODEQ on December 12, 2012, to the extent set 
forth in this notice. These control measures are described in this 
action and are included in the docket for this proposed action. If 
approved, these specific control measures would become part of the 
Oregon SIP. The EPA is not taking action on certain aspects of the 
revisions submitted by the ODEQ. The EPA expects to take action on the 
remaining SIP revisions and any additional revisions that may be 
submitted by the ODEQ in the future.

IV. Statutory and Executive Order Reviews

    Under the CAA, the Administrator is required to approve a SIP 
submission that complies with the provisions of the CAA and applicable 
federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in 
reviewing SIP submissions, the EPA's role is to approve state choices, 
provided that they meet the criteria of the CAA. Accordingly, this 
action merely proposes to approve state law as meeting federal 
requirements and does not impose additional requirements beyond those 
imposed by State law. For that reason, this proposed action:
     Is not a ``significant regulatory action'' subject to 
review by the Office of Management and Budget under Executive Order 
12866 (58 FR 51735, October 4, 1993);
     Does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     Is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     Does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     Does not have federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     Is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     Is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     Is not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the CAA; and
     Does not provide the EPA with the discretionary authority 
to address, as appropriate, disproportionate human health or 
environmental effects, using practicable and legally permissible 
methods, under Executive Order 12898 (59 FR 7629, February 16, 1994).

In addition, this SIP is not approved to apply on any Indian 
reservation land or in any other area where EPA or an Indian tribe has 
demonstrated that a tribe has jurisdiction. In those areas of Indian 
country, the rule does not have tribal implications as specified by 
Executive Order 13175 (65 FR 67249, November 9, 2000), nor will it 
impose substantial direct costs on tribal governments or preempt tribal 
law.

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Nitrogen dioxide, 
Incorporation by reference, Particulate matter, Reporting and 
recordkeeping requirements, Sulfur oxides, Volatile organic compounds.

    Authority: 42 U.S.C. 7401 et seq.

    Dated: December 3, 2014.
Dennis J. McLerran,
Regional Administrator, Region 10.
[FR Doc. 2014-30498 Filed 12-29-14; 8:45 am]
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