ENVIRONMENTAL PROTECTION AGENCY 

40 CFR Part 52 

lEPA-ROS-OAR-2014-0049; FRL-___ _. 

Approval and Promulgation of Air Quality Implementation Plans; South Dakota; 

Prevention of Significant Deterioration; Greenhouse Gas Tailoring Rule Revisions 

AGENCY: Environmental Protection Agency (EPA). 

ACTION: Final rule. 

SUMMARY: EPA is partially approving and partially disapproving revisions to the South 

Dakota State Implementation Plan (SIP) submitted by the South Dakota Department of 

Environment and Natural Resources (DENR) to EPA on June 20, 2011. The SIP revisions 

address the permitting of sources of greenhouse gases (GHGs). Specifically, we are approving 

revisions to the State's Prevention of Significant Deterioration (PSD) program to incorporate the 

provisions of the federal PSD and Title V Greenhouse Gas Tailoring Rule (Tailoring Rule). The 

SIP revisions incorporate by reference the federal Tailoring Rule's emission thresholds for 

determining which new stationary sources and modifications to existing stationary sources 

become subject to South Dakota's PSD permitting requirements for their GHG emissions. EPA 

is finalizing disapproval of a related provision that would rescind the State's Tailoring Rule 

revision in certain circumstances. EPA will take separate action on an amendment to the chapter 

Construction Permits for New Sources or Modifications in the June 20, 2011 submittal, 

regarding permits for minor sources. EPA is finalizing this action under section 110 and part C 

o f the Clean Air Act (the Act or CAA). 

DATES: This final rule is effective [INSERT date 30 days after publication in the Federal 

Register]. 
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ADDRESSES: EPA has established a docket for this action under Docket Identification No. 

EPA-R08-0AR-2014-0049. 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 whose disclosure is restricted by statute. Certain other material, such as 

copyrighted material, will be publicly available only in hard copy. Publicly available docket 

materials are available either electronically in www.regulations.gov or in hard copy at the Air 

Program, Environmental Protection Agency (EPA), Region 8, 1595 Wynkoop St., Denver, 

Colorado 80202-1129. EPA requests that if at all possible, you contact the individual listed in 

the FOR FURTHER INFORMATION CONTACT section to view the hard copy ofthe 

docket. You may view the hard copy ofthe docket Monday through Friday, 8:00a.m. to 4:00 

p.m., excluding Federal holidays. 

FOR FURTHER INFORMATION CONTACT: Jody Ostendorf, Air Program, Mailcode SPAR, Environmental Protection Agency (EPA), Region 8, 1595 Wynkoop St., Denver, Colorado 

80202-1129, (303) 312-7814, ostendorf.jody@epa.gov 

SUPPLEMENTARY INFORMATION: 

Definitions 

For the purpose of this document, the following definitions apply: 

(i) The words or initials Act or CAA mean or refer to the federal Clean Air Act, unless the 

context indicates otherwise. 

(ii) The initials DENR mean or refer to the South Dakota Department of Environment and 

Natural Resources. 
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(iii) The words EPA, we, us or our mean or refer to the United States Environmental Protection 

Agency. 

(iv) The initials GHG mean or refer to Greenhouse Gas. 

(v) The initials PSD mean or refer to Prevention of Significant Deterioration. 

(vi) The initials SIP mean or refer to State Implementation Plan. 

(vii) The words State or SD mean the State of South Dakota, unless the context indicates 

otherwise. 

Table of Contents 

I. Background for Our Final Action 

II. Response to Comments 

III. What Final Action is EPA Taking? 

IV. Statutory and Executive Orders Review 

I. Background for Our Final Action 

The June 20, 20 I 1 submittal incorporates by reference the provisions of the federal PSD 

and Title V Greenhouse Gas Tailoring Rule (Tailoring Rule), that establish 1) that GHG is a 

regulated pollutant under South Dakota's PSD program, and 2) emission thresholds for 

determining which new stationary sources and modification projects become subject to South 

Dakota's PSD permitting requirements for their GHG emissions. The background for today's 

final rule, our rationale for disapproving the submitted rescission clause language, and EPA's 

national actions pertaining to GHGs is discussed in detail in our proposal (see 79 FR 8130, 

February 11 , 2014). The comment period was open for 30 days and we received two adverse 

comment letters. 

II. Response to Comments 
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We received adverse comments on our proposed action, specifically on our proposed 

disapproval of the rescission clause, from the South Dakota DENR. We received similar 

comments from Otter Tail Power Company. After considering the comments, EPA has 

decided to finalize our action as proposed. The comments and our responses follow. 

Comment: DENR states that EPA's first proposed basis for disapproval was that the rescission 

clause would allow for revision of the SIP without the approval ofthe Administrator. EPA cited 

40 CFR 51 .I 05, which states: 

Revisions of a plan, or portions thereof, will not be considered part of an applicable plan 

until such revisions have been approved by the Administrator in accordance with [part 

51]. 

DENR characterizes EPA as stating that the rescission clause will be a revision of the plan down 

the road that the Administrator has not had a chance to approve. DENR disagrees, stating that 

EPA has the chance to approve the rescission clause now. Otter Tail Power Company makes a 

similar argument, stating that 40 CFR 51.105 will not be violated in the event of a triggering 

action because the Administrator will have already approved the fact that the rules can be 

revised. 

Response: EPA disagrees with this comment. We did not say the rescission clause as submitted 

is not before EPA for approval. Instead, we said that we were considering whether ahy 

future change to the SIP that occurs as a result of the automatic rescission clause would be 

consistent with EPA's interpretation of the effect of the triggering EPA or federal court action. 

In this case, even if EPA were to approve South Dakota's rescission clause now, the SIP would 

be modified without any EPA interpretation of the triggering federal court action. This violates 

40 CFR 51. 105. 
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Comment: DENR states that EPA approval of the rescission clause would not violate any public 

notice requirements. DENR notes that the public had notice and opportunity to comment on both 

the State's rulemaking process and on EPA's SIP approval process; Otter Tail Power Company 

likewise states that there has already been adequate notice and comment. DENR states that the 

public is thus aware that if a court issues an order vacating or otherwise invalidating EPA's PSD 

GHG regulations, the South Dakota provisions will be rescinded. Otter Tail Power Company 

states that any further public notice is unnecessary. 

Response: EPA disagrees with this comment. EPA is not stating that there was insufficient 

notice that the rescission clause says what it says. EPA is stating that in the future there would 

be inadequate notice to the public as to the effects of a court decision. DENR does not dispute 

this, because DENR does not indicate that there is any notification mechanism that would take 

place after the court decision. Likewise, Otter Tail Power Company does not explain how the 

public would be adequately notified. 

Comment: DENR states that EPA's disapproval of the rescission clause would place an undue 

burden on the regulated community. Businesses moving to South Dakota or trying to expand 

would be put on hold until South Dakota could go through the rule process of removing the 

vacated provisions and submitting the revisions to EPA for approval. DENR and Otter Tail 

Power Company note that EPA has taken nearly three years to act on this submittal. Otter Tai I 

Power Company states that this shows it would take a similar amount of time to remove the 

provisions from South Dakota's SIP if the PSD GHG provisions are stayed or vacated. DENR 

states a concern that without the rescission clause, there could be a scenario where South 

Dakota's SIP would have a requirement the State could not enforce because the underlying rule 

or law was no longer valid but a third party or EPA could attempt to enforce. 
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Response: EPA disagrees with this comment. First, a rescission clause that meets the 

requirements we described in our proposal notice can become effective relatively quickly. For 

example, we have approved a rescission clause that takes effect upon EPA's publication of a 

notice in the Federal Register that a court has vacated GHG PSD permitting requirements. 77 FR 

12484 (Mar. 1, 20 12). This triggering event serves both the purpose of public notification and 

EPA interpretation of the court decision. In that notice, EPA stated: 

In the event of a court decision ... that triggers (or likely triggers) application of 

Tennessee's automatic rescission provisions, EPA intends to promptly describe the 

impact of the court decision ... on the enforceability of its GHG permitting 

regulations. 

77 FR 12486. Thus, a rescission clause can meet CAA requirements and still become effective 

relatively quickly after a coutt decision, without need for the full SIP revision process. 

Second, South Dakota provides no evidence that any businesses would have to be put on 

hold. Most sources that are subject to PSD GHG requirements are subject to PSD permitting 

anyway due to their emissions of other pollutants. Furthermore, both states and EPA have issued 

many PSD permits that address GHG requirements, without any apparent impact on the 

economy. 

Comment: DENR notes that during the state rulemaking process, EPA commented on South 

Dakota's rescission clause and d id not object to it, only asking that South Dakota remove the 

word "reconsider" from the provision. DENR states that this estops EPA from objecting to the 

provision now. 

Response: EPA disagrees with this comment. First, section 110(1) mandates that EPA cannot 

approve a SIP revision that interferes with any requirement of the CAA. Regardless of 
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comments made during the state rulemaking, this requirement applies. As explained in our 

proposal notice and response to comments, EPA has determined in this action that the rescission 

clause does not comply with requirements in the CAA and in our regulations. 

Second, nothing in the CAA requires EPA to participate in a state rulemaking process or 

to reach a final determination during that process on whether a state rule meets the requirements 

of the CAA. In addition, nothing in EPA's comment stated that the revised language would be 

approvable, that the comment was EPA's final determination, or that the submittal would not be 

subject to further EPA review. And even if the comment had made such a statement, it would 

not give rise to estoppel, as regardless of any such statement CAA section 11 0(1) does not permit 

EPA to approve a SIP revision that interferes with requirements ofthe CAA. See, e.g. Utah 

Power & Light Co. v. United States, 243 U.S. 389 (1917) ("[T]he United States is neither bound 

nor estopped by acts of its officers or agents in entering into an arrangement or agreement to do 

or cause to be done what the law does not sanction or permit."). 

Comment: DENR states that South Dakota is in litigation with EPA regarding EPA's Tailoring 

Rule. EPA's disapproval of the rescission clause is tantamount to requiring the State to waive or 

compromise its claims in that litigation by taking a contrary position in its State rules, and is no 

less than coercion. 

Response: EPA strongly disagrees with this comment. It appears to EPA that our disapproval of 

the rescission clause has no legal consequences for the State, nor has DENR identified any. 

First, there are no legal consequences under the CAA. A rescission clause is not a required 

element of the plan, and disapproval of it does not obligate the State in any way to make a new 
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SIP submittal and does not create any potential for sanctions. 1 The State's PSD program remains 

fully approved. 

Second, there are no consequences that are relevant to the litigation. EPA is not requiring 

DENR to change anything in state law. Nor is EPA requiring the State somehow to affirm 

EPA's legal position in the cited litigation. The State is not required to make any response of 

any type to EPA's disapproval. There is nothing in EPA's disapproval of the State's rescission 

clause that can be characterized as coercion. 

III. What Final Action is EPA Taking? 

EPA is approving in part, and disapproving in part, the June 20,2011 submittal that 

addresses the permitting of sources of GHGs for incorporation into the South Dakota SIP. 

Specifically, EPA is approving revisions to Chapter 74:36:09 that incorporate the Tailoring Rule 

into the State's definitions and requirements for PSD. EPA is disapproving the provision that 

would rescind the State's Tailoring Rule revision in certain circumstances. EPA will take 

separate action on an amendment in the June 20, 2011 submittal to Chapter 74:36:20, 

Construction Permits for New Sources or Modifications, regarding permits for minor sources. 

EPA is approving changes to Definitions, Section 74:36:01 :08(2), which revises the 

major source definition so that it applies to any air pollutant "subject to regulation as required by 

EPA," and Section 74:36:0 I: 15(6), which adds the six GHGs designated by EPA as regulated air 

pollutants to the definition of regulated air pollutant. EPA is not taking action on the addition of 

"(73) "Subject to regulation" as defined in 40 CFR Section 70.2 (July 1, 2009), as revised in 

1 Even if this disapproval did create potential for sanctions-which it does not- that would not constitute coercion. 

See e.g., Virginia v. Browner, 80 F.3d 869 (4th Cir. 1996). 
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publication 75 Fed. Reg. 31607 (June 3, 20 l 0), in accordance with EPA requirements," because 

it applies to the title V permitting program which is not part of the SIP. 

IV. Statutory and Executive Orders Review 

Under the Clean Air Act, the Administrator is required to approve a SIP submission that 

complies with the provisions of the Act and applicable federal regulations. 42 U.S.C. 741 O(k); 

40 CFR 52.02(a). Thus, in reviewing SIP submissions, EPA's role is to approve state choices, 

provided that they meet the criteria of the Clean Air Act. Accordingly, this proposed action 

merely approves state Jaw that meets federal requirements and disapproves state law that does 

not meet federal requirements; when finalized, this action would not impose additional 

requirements beyond those imposed by state law. For that reason, this 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 (Public Law 

104-4); 

• does not have Federalism implications as specified in Executive Order 13132 (64 FR 

43255, August 10, 1999); 
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• 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 Clean Air Act; and 

• does not provide 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 rule does not have tribal implications as specified by Executive Order 

13175 (65 FR 67249, November 9, 2000), because the SIP is not approved to apply in Indian 

country located in the state, and EPA notes that it will not impose substantial direct costs on 

tribal governments or preempt tribal law. 

The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the Small Business 

Regulatory Enforcement fairness Act of 1996, generally provides that before a rule may take 

effect, the agency promulgating the rule must submit a rule report, which includes a copy of the 

rule, to each House of the Congress and to the Comptroller General ofthe United States. EPA 

will submit a report containing this action and other required information to the U.S. Senate, the 

U.S. House of Representatives, and the Comptroller General of the United States prior to 

publication of the rule in the Federal Register. A major rule cannot take effect until 60 days after 

it is published in the Federal Register. This action is not a "maj or rule" as defined by 5 U.S.C. 
II 

804(2). 

Under section 307(b)(l) of the Clean Air Act, petitions for judicial review of this action 

must be filed in the United States Court of Appeals for the appropriate circuit by [FEDERAL 

REGISTER OFFICE: insert date 60 days from date of publication of this document in the 

Federal Register]. Filing a petition for reconsideration by the Administrator of this final rule 

does not affect the finality of this action for the purposes of judicial review nor does it extend the 

time within which a petition for judicial review may be filed, and shall not postpone the 

effectiveness of such rule or action. This action may not be challenged later in proceedings to 

enforce its requirements. (See CAA section 307(b)(2).) 

List of Subjects in 40 CFR Part' 52 

Environmental protection, Air pollution control, Carbon monoxide, Intergovernmental 

relations, Lead, Nitrogen dioxide, Ozone, Particulate matter, Reporting and recordkeeping 

requirements, Sulfur oxides, and Volatile organic compounds. 

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

~ I "Z-'1 I' ., 

Dated: Shaun L. McGrath 

Regional Administrator 

Region 8 
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40 CFR part 52 is amended to read as follows: 

PART 52 -APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS 

I. The authority citation for Part 52 continues to read as follows: 

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

Subpart QQ - South Dakota 

2. Section 52.2170 is amended as follows: 

a. In paragraph (c)(1) by adding table entries for 74:36:01 :08 and 74:36:01:15. 

b. In paragraph (c)(l) by revising the table entry for 74:36:09:02. 

The amendments read as follows: 

§ 52.2170 Identification of plan. 

* * * * * 

(c) * * * 

( 1) * * * 

State citation Title/subject State EPA approval Explanations · 

effective date and 

date citation 1 I 

* * * * * * * 

74:36:01 Definitions 

* * * * * * * 

74:36:01:08 Major source defined 4/20/2011 [Insert Federal 

Register date of 

publication], 

[Insert Federal 

Register page 

number where 

the document 

begins.] 

* * * * * * * 

74:36:01:15 Regulated air pollutant 4/20/2011 [Insert Federal 

defmed Register date of 

publication], 
13 

[Insert Federal 

Register page 

number where 

the document 

begins.] 

* * * * * * * 

74:36:09 Prevention of Significant Deterioration 

* * * * * * * 

74:36:09:02 Prevention of significant 4/20/2011 [Insert Federal 

deterioration Register date of 

publication], 

[Insert Federal 

Register page 

number where 

the document 

beg ins.] 

* * * * * * * I .. ln order to determme the EPA effective date for a specific provtston listed m th1s table, consult 

the Federal Register notice cited in this column for the particular provision. 

* * * * *