### 21732 Federal Register / Vol. 81, No. 71 / Wednesday, April 13, 2016 / Rules and Regulations

specified in paragraphs (g)(1) through (g)(4) of this AD.

(1) For airplanes on which the inspection specified in paragraph (g) of this AD is accomplished on or after the effective date of this AD: Submit the report within 30 days after performing the inspection.

(2) For airplanes on which the inspection specified in paragraph (g) of this AD is accomplished before the effective date of this AD: Submit the report within 30 days after the effective date of this AD.
(j) Other FAA AD Provisions

The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the International Branch, send it to ATTN: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057–3356; telephone 425–227–1138; fax 425–227–1149. Information may be emailed to: 9-ANM-116- AMOC-REQUESTS@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. The AMOC approval letter must specifically reference this AD.

(2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, International Branch, ANM– 116, Transport Airplane Directorate, FAA; or the EASA; or Airbus’s EASA DOA. If approved by the DOA, the approval must include the DOA-authorized signature.

(3) Reporting Requirements: A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120–0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES–200.

(4) Required for Compliance (RC): If any service information contains procedures or tests that are identified as RC, those procedures and tests must be done to comply with this AD; any procedures or tests that are not identified as RC are recommended. Those procedures and tests that are not identified as RC may be deviated from using accepted methods in accordance with the operator’s maintenance or inspection program without obtaining approval of an AMOC, provided the procedures and tests identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to procedures or tests identified as RC require approval of an AMOC.

(k) Related Information

Refer to Mandatory Continuing Airworthiness Information (MCAI) EASA Airworthiness Directive 2014–0197, dated September 4, 2014, for related information. This MCAI may be found in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA–2015–8136.
(l) Material Incorporated by Reference

(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise.

(i) Airbus Service Bulletin A330–53–3202, dated May 6, 2014.

(ii) Airbus Service Bulletin A330–53–3212, dated May 6, 2014.

(iii) Airbus Service Bulletin A330–53– 3213, dated May 6, 2014.

(iv) Airbus Service Bulletin A330–53– 3214, dated May 6, 2014.

(v) Airbus Service Bulletin A330–53–3216, dated May 6, 2014.

(vi) Airbus Service Bulletin A330–53– 3217, dated May 6, 2014.

(vii) Airbus Service Bulletin A330–53– 3218, dated May 6, 2014.

(viii) Airbus Service Bulletin A330–53– 3219, dated May 6, 2014.

(3) For service information identified in this AD, contact Airbus SAS, Airworthiness Office—EAL, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 45 80; email airworthiness.A330–A340@airbus.com; Internet http://www.airbus.com.

(4) You may view this service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221.

(5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal-register/cfr/ibrlocations.html.

Issued in Renton, Washington, on March 31, 2016. Victor Wicklund, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service.

[FR Doc. 2016–08366 Filed 4–12–16; 8:45 am]

**BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION** 

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2015–4204; Directorate Identifier 2015–NM–001–AD; Amendment**  **39–18482; AD 2016–08–06]**

**RIN 2120–AA64**

**Airworthiness Directives; Airbus Airplanes** 

**AGENCY :**  Federal Aviation Administration (FAA), Department of Transportation (DOT).

**ACTION :**  Final rule.

**SUMMARY :**  We are adopting a new airworthiness directive (AD) for certain Airbus Model A300 B4–600, B4–600R, and F4–600R series airplanes, and Model A300 C4–605R Variant F airplanes (collectively called Model A300–600 series airplanes), modified by a particular supplemental type certificate (STC). This AD was prompted by a report of chafing found on the overflow sensor harness of the surge tank, and subsequent contact between the electrical wiring and fuel tank structure. This AD requires a one-time inspection for damage of the outer tank overflow sensor harness, and repair if necessary. This AD also requires modification of the sensor harness. We are issuing this AD to prevent chafing of the harness and subsequent contact between the electrical wiring and fuel tank structure, which could result in electrical arcing and a fuel tank explosion.

**DATES :**  This AD becomes effective May 18, 2016.

The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of May 18, 2016.

**ADDRESSES :**  For service information identified in this final rule, contact Simmonds Precision Products, Inc., A UTC Aerospace Company, 100 Panton Road, Vergennes, VT 05491; phone 802– 877–2911; fax 802–877–4444; Internet http://www.utcaerospacesystems.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221. It is also available on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2015–
4204.


### 21733 Federal Register / Vol. 81, No. 71 / Wednesday, April 13, 2016 / Rules and Regulations

Examining the AD Docket

You may examine the AD docket on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2015– 4204; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (telephone 800–647– 5527) is Docket Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590.

**FOR FURTHER INFORMATION CONTACT :**  Marc Ronell, Aerospace Engineer, Boston Aircraft Certification Office, ANE–150, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781– 238–7776; fax: 781–238–7170; email: marc.ronell@faa.gov.

**SUPPLEMENTARY INFORMATION :** 

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain Airbus Model A300 B4– 600, B4–600R, and F4–600R series airplanes, and Model A300 C4–605R Variant F airplanes (collectively called Model A300–600 series airplanes), modified by a particular STC. The NPRM published in the Federal Register on October 23, 2015 (80 FR 64371) (‘‘the NPRM’’).

The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued EASA Airworthiness Directive 2013–0193, dated August 23, 2013 (referred to after this as the Mandatory Continuing Airworthiness Information, or ‘‘the MCAI’’), to correct an unsafe condition for all Airbus Model A300 series airplanes and all Model A300–600 series airplanes.

The MCAI corresponds to FAA AD 2015–03–03, Amendment 39–18099 (80 FR 11101, March 2, 2015) (‘‘AD 2015– 03–03’’), which applies to Airbus Model A300 series airplanes and Model A300– 600 series airplanes, all serial numbers, except for airplanes modified by STC ST00092BO (http://rgl.faa.gov/ Regulatory

_ and

_ Guidance

_Library/ rgstc.nsf/0/D41C5AE8E46B49018625749 00069E004?OpenDocument&Highlight= st00092bo ).

In AD 2015–03–03, we explained that airplanes that have had the in-tank fuel quantity system modified by STC ST00092BO cannot accomplish the actions required by AD 2015–03–03 by using Airbus Service Bulletin A300–28– 6109, Revision 01, dated December 20,
2013.

We also stated that we were considering separate rulemaking to require the procedures and compliance time specified in UTC Aerospace Systems Service Bulletin 300723–28–03 (V–1577), dated October 10, 2014, for airplanes modified by STC ST00092BO. We have determined that further rulemaking is indeed necessary, and this AD follows from that determination.

You may examine the MCAI in the AD docket on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2015–
4204.

Comments

We gave the public the opportunity to participate in developing this AD. We have considered the comments received. The following presents the comments received on the NPRM and the FAA’s response to each comment. Request To Extend Proposed Compliance Time

FedEx asked that we extend the compliance time required by paragraph (g) of the proposed AD from 12 to 30 months. FedEx stated that AD 2015–03– 03 required accomplishing the inspection and rerouting within 30 months. FedEx added that, in both AD 2015–03–03 and the NPRM, improper harness routing is the root cause of the issue, and stated that airplanes having STC ST00092BO have equal susceptibility to harness chafing damage as those identified in AD 2015–03–03. FedEx suggested that a 30-month compliance time would still provide an acceptable level of safety. FedEx added that it is expecting to wait four to six months for one of the required materials, and the availability of its installation tool has not been confirmed. FedEx also stated that a longer compliance time would allow it to minimize the operational impact and accomplish the potentially lengthy service information at C-checks.

We do not agree with the commenter’s request to extend the compliance time, because the request is not supported by any analysis or supporting data. This compliance time is shorter to account for the time already elapsed for airplanes having STC ST00092BO. In developing an appropriate compliance time for the actions specified in this AD, we considered the safety implications and normal maintenance schedules for the timely accomplishment of the specified actions. We have determined that the proposed 12-month compliance time will ensure an acceptable level of safety and allow the actions to be done during scheduled maintenance intervals for most affected operators. However, affected operators may request an alternative method of compliance (AMOC) to request an extension of the compliance time under the provisions of paragraph (i) of this AD by submitting data and analysis substantiating that the change would provide an acceptable level of safety. We have not changed this AD in this regard. Request To Increase Work Hour Estimate

FedEx stated that, although the referenced service information specifies 14 work-hours per airplane for accomplishing both actions, the number of work-hours could be closer to 24, especially if a harness is replaced.

We infer that the commenter is requesting that the work–hour estimate specified in the ‘‘Costs of Compliance’’ section be increased. We partially agree with the request. We provided our best estimate for the work hours based on the information received from the airplane manufacturer and specified in the referenced service information. However, we do not know the number of work-hours it would take to replace a harness, and as stated in the ‘‘Costs of Compliance’’ section, we have received no definitive data that would enable usto provide cost estimates for the oncondition actions. We have not changed this final rule in this regard.

Conclusion

We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this AD as proposed except for minor editorial changes. We have determined that these minor changes:

• Are consistent with the intent that was proposed in the NPRM for correcting the unsafe condition; and

• Do not add any additional burden upon the public than was already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

UTC Aerospace Systems has issued Service Bulletin 300723–28–03 (V– 1577), Revision 01, dated July 20, 2015. The service information describes procedures for an inspection for damage of the outer tank of the overflow sensor harness, repair, and modification of the sensor harness. This service information is reasonably available because the interested parties have access to it through their normal course of business


### 21734 Federal Register / Vol. 81, No. 71 / Wednesday, April 13, 2016 / Rules and Regulations

or by the means identified in the

**ADDRESSES** section. Costs of Compliance

We estimate that this AD affects 65 airplanes of U.S. registry.

We also estimate that it takes about 3 work-hours per product to comply with the inspection required by this AD. The average labor rate is $85 per work-hour. Based on these figures, we estimate the cost of this inspection required by this AD on U.S. operators to be $16,575, or $255 per product.

We estimate that it takes about 11 work-hours per product to comply with the modification requirements of this AD. The average labor rate is $85 per work-hour. Required parts cost about $100 per product. Based on these figures, we estimate the cost of this modification on U.S. operators to be $67,275, or $1,035 per product.

We have received no definitive data that would enable us to provide cost estimates for the on-condition actions specified in this AD. Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. ‘‘Subtitle VII: Aviation Programs,’’ describes in more detail the scope of the Agency’s authority.

We are issuing this rulemaking under the authority described in ‘‘Subtitle VII, Part A, Subpart III, Section 44701: General requirements.’’ Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings

We determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government.

For the reasons discussed above, I certify that this AD:

1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; 2. Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979);

3. Will not affect intrastate aviation in Alaska; and

4. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption of the Amendment

Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

**PART 39—AIRWORTHINESS DIRECTIVES** 

■ 1. The authority citation for part 39 continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701.

**§ 39.13 [Amended]**

■ 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD):

2016–08–06 Airbus: Amendment 39–18482; Docket No. FAA–2015–4204; Directorate Identifier 2015–NM–001–AD.

(a) Effective Date

This AD becomes effective May 18, 2016.

(b) Affected ADs

None.
(c) Applicability

This AD applies to the Airbus airplanes specified in paragraphs (c)(1), (c)(2), (c)(3), and (c)(4) of this AD; certificated in any category; modified by Simmonds Precision Products, Inc., Supplemental Type Certificate (STC) ST00092BO (http://rgl.faa.gov/ Regulatory

_ and

_ Guidance

_Library/rgstc.nsf/ 0/D41C5AE8E46B4901862574900069E004 ?OpenDocument&Highlight=st00092bo ).

(1) Model A300 B4–601, B4–603, B4–620, and B4–622 airplanes.

(2) Model A300 B4–605R and B4–622R airplanes.

(3) Model A300 F4–605R and F4–622R airplanes.

(4) Model A300 C4–605R Variant F airplanes.
(d) Subject

Air Transport Association (ATA) of America Code 28, Fuel.

(e) Reason

This AD was prompted by a report of chafing found on the overflow sensor harness of the surge tank, and subsequent contact between the electrical wiring and fuel tank structure. We are issuing this AD to prevent chafing of the harness and subsequent contact between the electrical wiring and fuel tank structure, which could result in electrical arcing and a fuel tank explosion.
(f) Compliance

Comply with this AD within the compliance times specified, unless already done.
(g) One-Time Inspection and Repair

Within 12 months after the effective date of this AD: Do the actions required by paragraphs (g)(1), (g)(2), and (g)(3) of this AD, in accordance with the Accomplishment Instructions of UTC Aerospace Systems Service Bulletin 300723–28–03 (V–1577), Revision 01, dated July 20, 2015.

(1) Perform a one-time general visual inspection for damage of the outer tank sensor harness, and if any damage is found on the expando sleeving, before further flight, do a detailed inspection of the underlying wires for exposed conductor wires. If any exposed conductor wire is found, before further flight, replace the outer wing harness assembly.

(2) Install new brackets and re-route the surge tank overflow sensor harness.

(3) Modify the harness protection.

(h) Credit for Previous Actions

This paragraph provides credit for actions required by paragraph (g) of this AD, if those actions were performed before the effective date of this AD using UTC Aerospace Systems Service Bulletin 300723–28–03 (V– 1577), dated October 10, 2014. This service information is not incorporated by reference in this AD.
(i) Alternative Methods of Compliance (AMOCs)

(1) The Manager, Boston Aircraft Certification Office (ACO), ANE–150, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to the attention of the person identified in paragraph (j)(1) of this AD.

(2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office.
(j) Related Information

(1) For more information about this AD, contact Marc Ronell, Aerospace Engineer, Boston Aircraft Certification Office, ANE– 150, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781–238–7776; fax: 781– 238–7170; email: marc.ronell@faa.gov.

(2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (k)(3) and (k)(4) of this AD.
(k) Material Incorporated by Reference

(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.


### 21735 Federal Register / Vol. 81, No. 71 / Wednesday, April 13, 2016 / Rules and Regulations

(2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise.

(i) UTC Aerospace Systems Service Bulletin 300723–28–03 (V–1577), Revision 01, dated July 20, 2015.

(ii) Reserved. (3) For service information identified in this AD, contact Simmonds Precision Products, Inc., A UTC Aerospace Company, 100 Panton Road, Vergennes, VT 05491; phone 802–877–2911; fax 802–877–4444; Internet http://www.utcaero spacesystems.com.

(4) You may view this service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221.

(5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives. gov/federal-register/cfr/ibr-locations.html.

Issued in Renton, Washington, on March 30, 2016. Victor Wicklund, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2016–08352 Filed 4–12–16; 8:45 am]

**BILLING CODE 4910–13–P**

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**14 CFR Part 71**

**[Docket No. FAA–2015–3771; Airspace Docket No. 15–ANM–28]** 

**Establishment of Class E Airspace, South Bend, WA** 

**AGENCY :**  Federal Aviation Administration (FAA), DOT.

**ACTION :**  Final rule, correction.

**SUMMARY :**  This action corrects administrative errors in a final rule published in the Federal Register of March 8, 2016, that establishes Class E airspace at Willapa Harbor Heliport, South Bend, WA, by amending the assigned paragraph for rule incorporation within FAA Order 7400.9Z, by correcting format errors in the text header of the airspace legal description, and by correcting inconsistent airport name information in the airspace legal description. These changes do not affect the boundaries or operating requirements of the airspace.

**DATES :**  Effective 0901 UTC, May 26, 2016. The Director of the Federal Register approves this incorporation by reference action under Title 1, Code of Federal Regulations, part 51, subject to the annual revision of FAA Order 7400.9 and publication of conforming amendments.

**FOR FURTHER INFORMATION CONTACT :**  Tom Clark, Federal Aviation Administration, Operations Support Group, Western Service Center, 1601 Lind Avenue SW., Renton, WA 98057; Telephone: (425)
203–4511.

**SUPPLEMENTARY INFORMATION :**  History

The FAA published a final rule in the Federal Register establishing Class E airspace extending upward from 700 feet above the surface at Willapa Harbor Heliport, South Bend, WA (81 FR 12001 March 8, 2016) Docket No. FAA–2015– 3771. Subsequent to publication the FAA identified errors in the assigned paragraph for incorporation, text header format, and airport name information. This action corrects the errors.

Correction to Final Rule

Accordingly, pursuant to the authority delegated to me, in the Federal Register of March 8, 2016 (81 FR 12001) FR Doc. 2016–05059, Establishment of Class E airspace, South Bend, WA, is corrected as follows:

**§ 71.1 [Amended]**

On page 12002, column 1, line 17, remove ‘‘Paragraph 5000 Class D Airspace’’, and add in its place ‘‘Paragraph 6005. Class E airspace Areas Extending Upward from 700 feet or more Above the Surface of the Earth.’’

On page 12002, column 1, line 19 and 20, remove ‘‘ANM WA E5 Willapa Harbor Heliport, South Bend, WA [New]’’ and add in its place ‘‘ANM WA E5 South Bend, WA [New].’’

On page 12002, column 1, lines 27, 28, 34 and 35, after the word ‘Harbor’ add the word ‘Heliport’.

Issued in Seattle, Washington, on April 5,
2016. Tracey Johnson, Manager, Operations Support Group, Western Service Center.
[FR Doc. 2016–08395 Filed 4–12–16; 8:45 am]

**BILLING CODE 4910–13–P**

**ENVIRONMENTAL PROTECTION AGENCY** 

**40 CFR Part 52**

**[EPA–R09–OAR–2015–0165; FRL–9944–68– Region 9]** 

**Promulgation of Air Quality Implementation Plans; Arizona;**  **Regional Haze Federal Implementation Plan; Reconsideration** 

**AGENCY :**  Environmental Protection Agency (EPA). **ACTION :**  Final rule.

**SUMMARY :**  The Environmental Protection Agency (EPA) is revising portions of the Arizona Regional Haze Federal Implementation Plan (FIP) applicable to the Coronado Generating Station (Coronado) and the Cholla Power Plant (Cholla). In response to a petition for reconsideration from the Salt River Project Agricultural Improvement and Power District (SRP), the owner and operator of Coronado, we are replacing a plant-wide compliance method with a unit-specific compliance method for determining compliance with the best available retrofit technology (BART) emission limits for nitrogen oxides (NO X ) from Units 1 and 2 at Coronado. While the plant-wide limit for NO X emissions from Units 1 and 2 was established as 0.065 lb/MMBtu, we are now setting a unit-specific limit of 0.065 lb/MMBtu for Unit 1 and 0.080 lb/ MMBtu for Unit 2. In addition, we are revising the work practice standard in the FIP for Coronado. Finally, we are removing the affirmative defense for malfunctions, which applied to both Coronado and Cholla.

**DATES :**  Effective date: This rule will be effective May 13, 2016.

**ADDRESSES :**  The EPA has established a docket for this action under Docket ID No. EPA–R09–OAR–2015–0165. All documents in the docket are listed on the http://www.regulations.gov Web site. Although listed in the index, some information is not publicly available,
e.g., confidential business information (CBI) or other information whose disclosure 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 form. Publicly available docket materials are available electronically through http:// www.regulations.gov.

**FOR FURTHER INFORMATION CONTACT :**  Vijay Limaye, U.S. EPA, Region 9, Planning Office, Air Division, Air–2, 75 Hawthorne Street, San Francisco, CA 94105; telephone number: (415) 972– 3086; email address: limaye.vijay@
epa.gov.

**SUPPLEMENTARY INFORMATION :**  Throughout this document, ‘‘we,’’ ‘‘us,’’ and ‘‘our’’ refer to the EPA.

Table of Contents

I. Definitions II. Background III. Proposed Action IV. Public Comments and EPA Responses V. Final Action VI. Environmental Justice Considerations VII. Statutory and Executive Order Reviews