### 59468 Federal Register / Vol. 79, No. 191 / Thursday, October 2, 2014 / Proposed Rules

Relevant Service Information

We reviewed CFM Service Bulletin (SB) No. CFM56–7B S/B 73–0203, dated June 9, 2014, and CFM SB No. CFM56– 7B S/B 73–0204, dated June 9, 2014. The SBs describe procedures for the introduction of new FADEC software for the EECs.

FAA’s Determination

We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of the same type design. Proposed AD Requirements

This proposed AD would require modification of the engine by removing FADEC software, version 7BV4 or earlier, installed in the EECs on CFM56– 7B engines. Costs of Compliance

We estimate that this proposed AD would affect about 2,921 engines installed on airplanes of U.S. registry. We also estimate that it would take about 1 hour per product to comply with this proposed AD. The average labor rate is $85 per hour. Based on these figures, we estimate the cost of the proposed AD on U.S. operators to be $248,285. 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 proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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 this proposed regulation:

(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 to the extent that it justifies making a regulatory distinction, 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. The Proposed Amendment

Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 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. Amend § 39.13 by adding the following new airworthiness directive (AD):

CFM International S.A.: Docket No. FAA– 2014–0521; Directorate Identifier 2014– NE–11–AD.
(a) Comments Due Date

We must receive comments by December 1,
2014.
(b) Affected ADs

None. (c) Applicability

This AD applies to all CFM International (CFM) S.A. CFM56–7B series turbofan engines.
(d) Unsafe Condition

This AD was prompted by a dual engine thrust instability event that resulted in the overspeed and in-flight shutdown (IFSD) of one engine. We are issuing this AD to prevent a thrust instability event, which could lead to overspeed and IFSD of one or more engines, loss of thrust control, damage to the engine, and damage to the airplane.
(e) Compliance

(1) Comply with this AD within the compliance times specified, unless already done. (2) Within 6 months after the effective date of this AD, modify the engine by removing full authority digital engine control (FADEC) software, version 7BV4 or earlier, installed in the electronic engine controls.
(f) Alternative Methods of Compliance (AMOCs)

The Manager, Engine Certification Office, FAA, may approve AMOCs to this AD. Use the procedures found in 14 CFR 39.19 to make your request.
(g) Related Information

(1) For more information about this AD, contact Barbara Caufield, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7751; fax: 781–238– 7199; email: barbara.caufield@faa.gov.

(2) CFM Service Bulletin (SB) No. CFM56– 7B S/B 73–0203, dated June 9, 2014, and CFM No. SB CFM56–7B S/B 73–0204, dated June 9, 2014, which are not incorporated by reference in this proposed AD, can be obtained from CFM using the contact information in paragraph (g)(3) of this proposed AD.

(3) For service information identified in this proposed AD, contact CFM International Inc., Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; phone: 877–432–3272; fax: 877–432–3329; email: geae.aoc@ge.com.

(4) You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125.

Issued in Burlington, Massachusetts, on September 25, 2014. Ann C. Mollica, Acting Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service.
[FR Doc. 2014–23563 Filed 10–1–14; 8:45 am]

**BILLING CODE 4910–13–P**

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2014–0656; Directorate Identifier 2013–NM–224–AD]** 

**RIN 2120–AA64**

**Airworthiness Directives; Airbus Airplanes** 

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

**ACTION :**  Proposed rule; rescission.

**SUMMARY :**  We propose to rescind Airworthiness Directive (AD) 2010–08– 08, which applies to certain Airbus Model A330–243, –341, –342, and –343 airplanes. AD 2010–08–08 requires deactivating the water scavenge


### 59469 Federal Register / Vol. 79, No. 191 / Thursday, October 2, 2014 / Proposed Rules

automatic operation and revising the Limitations section of the airplane flight manual (AFM). We also propose to rescind AD 2011–06–04, which applies to certain Model A330–243F airplanes. AD 2011–06–04 requires revising the Limitations section of the AFM. We issued ADs 2010–08–08 and 2011–06– 04 to prevent fuel flow restriction, caused by ice, resulting in a possible engine surge or stall condition, and the engine being unable to provide the commanded thrust. Since we issued ADs 2010–08–08 and 2011–06–04, we have determined that the water scavenge system (WSS) operation does not induce any risk of fuel feed system (including the engine) blockage by ice on the pipework or pump inlets. We have also determined that the risk of fuel flow restriction by ice at the fuel oil heat exchanger (FOHE) interface on airplanes equipped with Trent 700engines is now addressed by a redesigned FOHE, which incorporates enhanced anti-icing and de-icing performance.

**DATES :**  We must receive comments on this proposed AD by November 17,
2014.

**ADDRESSES :**  You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:

• Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.

• Fax: 202–493–2251.

• Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590.

• Hand Delivery: Deliver to the Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.

For service information identified in this proposed 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. 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. 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–2014– 0656; 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 proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone (800) 647–5527) is in the **ADDRESSES** section. Comments will be available in the AD docket shortly after receipt.

**FOR FURTHER INFORMATION CONTACT :**  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.

**SUPPLEMENTARY INFORMATION :** 
Comments Invited

We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the

**ADDRESSES** section. Include ‘‘Docket No. FAA–2014–0656; Directorate Identifier 2013–NM–224–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those
comments.

We will post all comments we receive, without change, to http:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD.

Discussion

On April 1, 2010, we issued AD 2010– 08–08, Amendment 39–16263 (75 FR 19196, April 14, 2010), for Airbus Model A330–243, –341, –342, and –343 airplanes equipped with Rolls-Royce Trent 700 engines, on which Airbus Modification 56966MP16199 has been embodied in production or Airbus Service Bulletin A330–28–3105 has been embodied in service. AD 2010–08– 08 requires deactivating the water scavenge automatic operation and revising the Limitations section of the AFM. AD 2010–08–08 resulted from reports of ice being shed, causing a temporary blockage in the engine fuel system. We issued AD 2010–08–08 to prevent fuel flow restriction caused by ice, resulting in a possible engine surge or stall condition, and the engine being unable to provide the commanded thrust.

On February 28, 2011, we issued AD 2011–06–04, Amendment 39–16628 (76 FR 13075, March 10, 2011), for Airbus Model A330–243F airplanes, on which Airbus Modification 56966H16199 has been embodied in production or Airbus Service Bulletin A330–28–3105 has been embodied in service. AD 2011–06– 04 requires revising the Limitations section of the AFM. AD 2011–06–04 resulted from reports of ice being shed, causing a temporary blockage in the engine fuel system. We issued AD 2011– 06–04 to prevent fuel flow restriction caused by ice, resulting in a possible engine surge or stall condition, and the engine being unable to provide the commanded thrust.
Actions Since ADs 2010–08–08, Amendment 39–16263 (75 FR 19196, April 14, 2010), and 2011–06–04, Amendment 39–16628 (76 FR 13075, March 10, 2011), Were Issued

Since we issued ADs 2010–08–08, Amendment 39–16263 (75 FR 19196, April 14, 2010), and 2011–06–04, Amendment 39–16628 (76 FR 13075, March 10, 2011), we have determined that the WSS operation does not induce any risk of fuel feed system (including the engine) blockage by ice on the pipework or pump inlets.

We have also determined that the risk of fuel flow restriction by ice at the FOHE interface on airplanes equipped with Trent 700 engines is now addressed by a re-designed FOHE (Airbus Modification 200218), which incorporates enhanced anti-icing and de-icing performance. The re-designed FOHE was required to be installed on all Trent 700 engines by FAA AD 2010–07– 01, Amendment 39–16244 (75 FR 15326, March 29, 2010).

EASA has issued Airworthiness Directive 2010–0132–CN, dated October 14, 2013 (referred to after this as the Mandatory Continuing Airworthiness Information, or ‘‘the MCAI’’), to cancel EASA AD 2010–0132R1, dated June 10, 2013, which superseded EASA AD 2010–0132, dated June 28, 2010. The requirements of FAA AD 2010–08–08, Amendment 39–16263 (75 FR 19196, April 14, 2010), and AD 2011–06–04, Amendment 39–16628 (76 FR 13075, March 10, 2011), correspond to EASA AD 2010–0132. The MCAI states:

During an in-service event, the flight crew of a Trent 700 powered A330 aeroplane reported a temporary Engine Pressure Ratio(EPR) shortfall on engine 2 during the takeoff phase of the flight. The ENG STALL warning was set. The flight crew followed the standard procedures which included reducing throttle to idle. The engine recovered and provided the demanded thrust level for the remainder of the flight.

Data analysis confirmed a temporary fuel flow restriction and subsequent recovery, and indicated that also engine 1 experienced a


### 59470 Federal Register / Vol. 79, No. 191 / Thursday, October 2, 2014 / Proposed Rules

temporary fuel flow restriction shortly after the initial event on engine 2, again followed by a full recovery. The engine 1 EPR shortfall was insufficient to trigger any associated warning and was only noted through analysis of the flight data. No flight crew action was necessary to recover normal performance on this engine. The remainder of the flight was uneventful.

Based on industry-wide experience, the investigation of the event focused on the possibility for ice to temporarily restrict the fuel flow. While no direct fuel system fault was identified, the operation of the water scavenge system (WSS) at Rib 3 was considered to have been a contributory factor.

Prompted by these findings, EASA issued Emergency AD 2010–0042–E [which corresponds to FAA AD 2010–08–08, Amendment 39–16263 (75 FR 19196, April 14, 2010] to require deactivation of the automatic Standby Fuel Pump Scavenge System and to prohibit dispatch of an aeroplane with one main fuel pump inoperative.

Subsequently, EASA issued AD 2010–0132 which superseded EASA AD 2010–0042–E, retaining its requirements, to expand the applicability to the newly certified model A330–243F [which corresponds to FAA AD 2011–06–04, Amendment 39–16628 (76 FR 13075, March 10, 2011, for the A330–243F requirements]. EASA AD 2010–0132 was later revised to remove the dispatch restriction with one main fuel pump inoperative.

Since EASA AD 2010–0132R1 was issued, extensive fuel system icing risk investigations testing was conducted by Airbus and Rolls-Royce, the results of which confirmed that the Rib 3 WSS operation does not induce any risk of fuel feed system (including the engine) blockage by ice accreted on the pipework and/or pump inlets. In addition, it was demonstrated that the risk of fuel flow restriction by ice at the Fuel Oil Heat Exchanger (FOHE) interface on aeroplanes equipped with Trent 700 engines is now adequately addressed by introduction of a re-designed FOHE, more tolerant to the release of ice (modification 200218). The modified FOHE (incorporating enhanced anti-icing and de-icing performance) is required to be installed on all Trent 700 engines through EASA AD 2009–0257 [which corresponds to FAA AD 2010–07–01, Amendment 39–16244 (75 FR 15326, March 29, 2010)].

Previously, the operation of the WSS at Rib 3 was no longer considered as a main contributory factor on ice build-up and subsequent release of ice into the fuel system. Based on the latest information, the deactivation of the automatic Standby Fuel Pump Scavenge System is no longer required.

For the reasons described above, this Notice cancels EASA AD 2010–0132R1.

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–2014–
0656. FAA’s Conclusions Upon further consideration, we have determined that ADs 2010–08–08, Amendment 39–16263 (75 FR 19196, April 14, 2010), and 2011–06–04, Amendment 39–16628 (76 FR 13075, March 10, 2011), must be rescinded. Rescission of ADs 2010–08–08 and 2011–06–04 would not preclude the FAA from issuing another related action nor commit the FAA to any course of action in the future. Related Costs of Compliance

AD 2010–08–08, Amendment 39– 16263 (75 FR 19196, April 14, 2010), affects about 13 airplanes of U.S. registry. The estimated cost of the actions required by AD 2010–08–08 for U.S. operators is $1,105, or $85 per product. Rescinding AD 2010–08–08 would eliminate those costs.

AD 2011–06–04, Amendment 39– 16628 (76 FR 13075, March 10, 2011), affects no airplanes of U.S. registry. For U.S. operators, there are no costs associated with the actions required by AD 2011–06–04. 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 proposed 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 have determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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 the proposed regulation:

(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.
The Proposed Amendment

Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 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 removing Airworthiness Directives (AD) 2010–08–08, Amendment 39–16263 (75 FR 19196, April 14, 2010); and 2011– 06–04, Amendment 39–16628 (76 FR 13075, March 10, 2011); and adding the following new AD:

Airbus: Docket No. FAA–2014–0656; Directorate Identifier 2013–NM–224–AD.

(a) Comments Due Date

We must receive comments by November 17, 2014.
(b) Affected ADs

This action removes ADs 2010–08–08, Amendment 39–16263 (75 FR 19196, April 14, 2010); and 2011–06–04, Amendment 39– 16628 (76 FR 13075, March 10, 2011).
(c) Applicability

This AD applies to the airplanes specified in paragraphs (c)(1) and (c)(2) of this AD.

(1) Airbus Model A330–243, –341, –342, and –343 airplanes, certificated in any category, all manufacturer serial numbers equipped with Rolls-Royce Trent 700 engines, on which Airbus Modification 56966MP16199 has been embodied in production or Airbus Service Bulletin A330– 28–3105 has been embodied in service.

(2) Airbus Model A330–243F airplanes, certificated in any category, all manufacturer serial numbers on which Airbus Modification 56966H16199 has been embodied in production or Airbus Service Bulletin A330– 28–3105 has been embodied in service.


### 59471 Federal Register / Vol. 79, No. 191 / Thursday, October 2, 2014 / Proposed Rules

Issued in Renton, Washington, on September 24, 2014. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2014–23472 Filed 10–1–14; 8:45 am]

**BILLING CODE 4910–13–P**

**ENVIRONMENTAL PROTECTION AGENCY** 

**40 CFR Part 52**

**[EPA–R09–OAR–2014–0460; FRL–9915–36– Region 9]** 

**Revisions to the California State Implementation Plan, Imperial County**  **Air Pollution Control District and San Joaquin Valley Unified Air Pollution**  **Control District**

**AGENCY :**  Environmental Protection Agency (EPA).

**ACTION :**  Proposed rule.

**SUMMARY :**  The Environmental Protection Agency (EPA) is proposing to approve revisions to the Imperial County Air Pollution Control District (ICAPCD) and San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) portions of the California State Implementation Plan (SIP). These revisions concern definitions that are necessary for the creation, modification and understanding of rules that address air pollution. Among other changes, the revised definitions help clarify federal New Source Review (NSR) requirements, update the districts’ exempt volatile organic compounds list to correspond with EPA’s, and improve formatting consistency. We are proposing to approve local rules which include these definitions under the Clean Air Act (CAA or the Act).

**DATES :**  Any comments on this proposal must arrive by November 3, 2014.

**ADDRESSES :**  Submit comments, identified by docket number EPA–R09– OAR–2014–0460, by one of the following methods:

1. Federal eRulemaking Portal: www.regulations.gov. Follow the on-line instructions.

2. Email: steckel.andrew@epa.gov

. 3. Mail or deliver: Andrew Steckel (Air–4), U.S. Environmental Protection Agency Region IX, 75 Hawthorne Street, San Francisco, CA 94105–3901.

Instructions: All comments 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 Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Information that you consider CBI or otherwise protected should be clearly identified as such and should not be submitted through www.regulations.gov or email. www.regulations.gov is an ‘‘anonymous access’’ system, and EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send email directly to EPA, your email address will be automatically captured and included as part of the public comment. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, 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: Generally, documents in the docket for this action are available electronically at www.regulations.gov and in hard copy at EPA Region IX, 75 Hawthorne Street, San Francisco, California 94105–3901. While all documents in the docket are listed at www.regulations.gov, some information may be publicly available only at the hard copy location (e.g., copyrighted material, large maps), and some may not be publicly available in either location (e.g., CBI). To inspect the hard copy materials, please schedule an appointment during normal business hours with the contact listed in the **FOR**
**FURTHER INFORMATION CONTACT** section.

**FOR FURTHER INFORMATION CONTACT :**  Arnold Lazarus, EPA Region IX, (415) 972–3024, lazarus.arnold@epa.gov

. **SUPPLEMENTARY INFORMATION :**  This proposal addresses the following local rules: ICAPCD Rule 101 and SJVUAPCD Rule 1020. In the Rules and Regulations section of this Federal Register, we are approving these local rules in a direct final action without prior proposal because we believe these SIP revisions are not controversial. If we receive adverse comments, however, we will publish a timely withdrawal of the direct final rule and address the comments in subsequent action based on this proposed rule. Please note that if we receive adverse comment on an amendment, paragraph, or section of this rule and if that provision may be severed from the remainder of the rule, we may adopt as final those provisions of the rule that are not the subject of an adverse comment.

We do not plan to open a second comment period, so anyone interested in commenting should do so at this time. If we do not receive adverse comments, no further activity is planned. For further information, please see the direct final action.

Dated: July 25, 2014. Jared Blumenfeld, Regional Administrator, Region IX.
[FR Doc. 2014–23401 Filed 10–1–14; 8:45 am]

**BILLING CODE 6560–50–P**

**ENVIRONMENTAL PROTECTION AGENCY** 

**40 CFR Parts 271 and 272**

**[EPA–R06–RCRA–2012–0793; FRL–9916– 01–Region 6]** 

**Arkansas: Final Authorization of State Initiated Changes and Incorporation by**  **Reference of State Hazardous Waste Management Program** 

**AGENCY :**  Environmental Protection Agency (EPA).

**ACTION :**  Proposed rule.

**SUMMARY :**  During a review of Arkansas’ regulations, the Environmental Protection Agency (EPA) identified a variety of State-initiated changes to Arkansas’ hazardous waste program under the Resource Conservation and Recovery Act, as amended (RCRA), for which the State had not previously sought authorization. The EPA proposes to authorize the State for the program changes. In addition, the EPA proposes to codify in the regulations entitled ‘‘Approved State Hazardous Waste Management Programs’’, Arkansas’ authorized hazardous waste program. The EPA will incorporate by reference into the Code of Federal Regulations (CFR) those provisions of the State regulations that are authorized and that the EPA will enforce under RCRA.

**DATES :**  Send written comments by November 3, 2014.

**ADDRESSES :**  Send written comments to Alima Patterson, Region 6, Regional Authorization Coordinator, or Julia Banks, Codification Coordinator, State/ Tribal Oversight Section (6PD–O), Multimedia Planning and Permitting Division, EPA Region 6, 1445 Ross Avenue, Dallas, Texas 75202–2733. Phone number: (214) 665–8533 or (214) 665–8178. You may also submit comments electronically or through hand delivery/courier; please follow the detailed instructions in the **ADDRESSES** section of the direct final rule which is located in the Rules section of this Federal Register

. **FOR FURTHER INFORMATION CONTACT :**  Alima Patterson, (214) 665–8533.

**SUPPLEMENTARY INFORMATION :**  In the ‘‘Rules and Regulations’’ section of this Federal Register, the EPA is authorizing