### 25798 Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules

**ENVIRONMENTAL PROTECTION AGENCY** 

**40 CFR Part 52**

**[EPA–R08–OAR–2009–0790; FRL–9114–4]**

**Approval and Promulgation of Air Quality Implementation Plans;**  **Colorado; Revisions to Regulation Number 1** 

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

**ACTION :**  Proposed Rule.

**SUMMARY :**  EPA is proposing to approve State Implementation Plan revisions submitted by the State of Colorado on August 3, 2007 to Colorado’s Regulation Number 1 (revisions to the performance testing requirements for air curtain destructors). Colorado adopted these rule revisions on October 2, 2006. All other actions submitted by the State of Colorado concurrent with Colorado’s Regulation Number 1 revision request will be acted on at a later date. In the

‘‘Rules and Regulations ’’ section of this Federal Register , EPA is approving the State’s SIP revision as a direct final rule without prior proposal because theAgency views this as a noncontroversial SIP revision and anticipates no adverse comments. A detailed rationale for the approval is set forth in the preamble to the direct final rule. If EPA receives no adverse comments, EPA will not take further action on this proposed rule. If EPA receives adverse comments, EPA will withdraw the direct final rule and it will not take effect. EPA will address all public comments in a subsequent final rule based on this proposed rule. EPA will not institute a second comment period on this action. Any parties interested in commenting must do so at this time. Please note that if EPA receives adverse comment on an amendment, paragraph, or section of this rule and if that provision may be severed from the remainder of the rule, EPA may adopt as final those provisions of the rule that are not the subject of an adverse comment.

**DATES :**  Comments must be received on or before June 9, 2010.

**ADDRESSES :**  Submit your comments, identified by Docket ID No. EPA–R08– OAR–2009–0790, by one of the following methods:

• www.regulations.gov. Follow the on-line instructions for submitting
comments.

• E-mail: videtich.callie@epa.gov and leone.kevin@epa.gov

• Fax: (303) 312–6064 (please alert the individual listed in the **FOR FURTHER INFORMATION CONTACT**  if you are faxing comments).

• Mail: Callie A. Videtich, Director, Air Program, Environmental Protection Agency (EPA), Region 8, Mailcode 8P– AR, 1595 Wynkoop Street, Denver, Colorado 80202–1129.

• Hand Delivery: Callie A. Videtich, Director, Air Program, Environmental Protection Agency (EPA), Region 8, Mailcode 8P–AR, 1595 Wynkoop Street, Denver, Colorado 80202–1129. Such deliveries are only accepted Monday through Friday, 8 a.m. to 4:30 p.m., excluding Federal holidays. Special arrangements should be made for deliveries of boxed information.

Instructions: Direct your comments to Docket ID No. EPA–R08–OAR–2009– 0790. 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 whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through www.regulations.gov or e-mail. The www.regulations.gov Web site is an ‘‘anonymous access ’’ system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an e-mail comment directly to 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, 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 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. For additional information about EPA’s public docket visit the EPA Docket Center homepage at http:// www.epa.gov/epahome/dockets.htm. For additional instructions on submitting comments, go to Section I. General Information of the

**SUPPLEMENTARY INFORMATION** section of this document.

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 whose disclosure is restricted by statute. Certain other material, such as copyrighted material, will be publiclyavailable only in hard copy. Publiclyavailable 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 Street, 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 of the docket. You may view the hard copy of the docket Monday through Friday, 8 a.m. to 4 p.m., excluding Federal holidays.

**FOR FURTHER INFORMATION CONTACT :**  Kevin Leone, Air Program, Mailcode 8P–AR, Environmental Protection Agency, Region 8, 1595 Wynkoop Street, Denver, Colorado 80202–1129, (303) 312–6227, or leone.kevin@epa.gov.

**SUPPLEMENTARY INFORMATION :**  See the information provided in the Direct Final action of the same title which is located in the Rules and Regulations section of this Federal Register

.

Authority: 42 U.S.C. 7401 et seq.
Dated: December 15, 2009. Carol Rushin, Acting Regional Administrator, Region 8.
[FR Doc. 2010–10565 Filed 5–7–10; 8:45 am]

**BILLING CODE 6560–50–P**

**ENVIRONMENTAL PROTECTION AGENCY** 

**40 CFR Part 52**

**[EPA–R09–OAR–2010–0286; FRL–9138–7]**

**Revisions to the California State Implementation Plan, Yolo Solano Air**  **Quality Management District**

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

**ACTION :**  Proposed rule.

**SUMMARY :**  EPA is proposing to approve revisions to the Yolo-Solano Air Quality Management District (YSAQMD) portion of the California State Implementation Plan (SIP). These revisions concern oxides of nitrogen (NOx) emissions from natural gas-fired water heaters, small boilers and nitric acid production facilities. We are proposing to approve local rules to regulate these emission sources under the Clean Air Act as amended in 1990 (CAA or the Act).

**DATES :**  Any comments on this proposal must arrive by June 9, 2010.


### 25799 Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules

**ADDRESSES :**  Submit comments, identified by docket number [EPA–R09– OAR–2010–0286], by one of the following methods:

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

2. E-mail: 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 e-mail. 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 e-mail directly to EPA, your e-mail 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: The index to the docket for this action is available electronically at www.regulations.gov and in hard copy at EPA Region IX, 75 Hawthorne Street, San Francisco, California. While all documents in the docket are listed in the index, some information may be publicly available only at the hard copy location ( e.g., copyrighted material), 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 :**  Idalia Perez, EPA Region IX, (415) 972– 3248, perez.idalia@epa.gov.

**SUPPLEMENTARY INFORMATION :**  This proposal addresses the following local rules:

1. Rule 2.37, Natural Gas-Fired Water Heaters and Small Boilers

2. Rule 2.42, Nitric Acid Production. 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 these rules and if that provision may be severed from the remainder of these rules, we may adopt as final those provisions of the rules 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: April 1, 2010. Jared Blumenfeld, Regional Administrator, Region IX.
[FR Doc. 2010–10944 Filed 5–7–10; 8:45 am]

**BILLING CODE 6560–50–P**

**ENVIRONMENTAL PROTECTION AGENCY** 

**40 CFR Part 82**

**[EPA–HQ–OAR–2009–0286; FRL–9147–9]**

**RIN 2060–AP54**

**Protection of Stratospheric Ozone: Listing of Substitutes for Ozone**  **Depleting Substances—Hydrocarbon Refrigerants** 

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

**ACTION :**  Proposed rulemaking.

**SUMMARY :**  Pursuant to the U.S. Environmental Protection Agency’s Significant New Alternatives Policy program, this action proposes to list isobutane, propane, HCR–188C, and HCR–188C1 as ‘‘acceptable, subject to use conditions, ’’ as substitutes for chlorofluorocarbon (CFC)–12, also referred to as R–12, CCl 2F 2 and dichlorodifluoromethane and hydrochlorofluorocarbon (HCFC)–22, also referred to as R–22, CHClF 2 , chlorodifluoromethane and difluorochloromethane, in household refrigerators, freezers, and combination refrigerator and freezers and commercial refrigeration (retail food refrigerators and freezers—stand-alone units only).

**DATES :**  Comments must be received on or before July 9, 2010, unless a public hearing is requested. Comments must then be received on or before July 26, 2010. Any party requesting a public hearing must notify the contact listed below under **FOR FURTHER INFORMATION**
**CONTACT** by 5 p.m. Eastern Daylight Time on May 20, 2010. If a hearing is held, it will take place on May 25, 2010 in Washington, DC and further information will be provided on EPA’s Stratospheric Ozone World Wide Web site at http://www.epa.gov/ozone/snap.

**ADDRESSES :**  Submit your comments, identified by Docket ID No. EPA–HQ– OAR–2009–0286, by one of the following methods:

• http://www.regulations.gov. Follow the on-line instructions for submitting
comments.

• E-mail: A-And-R-Docket@epa.gov.

• Mail: Air and Radiation Docket, Environmental Protection Agency, Mailcode 6102T, 1200 Pennsylvania Ave., NW., Washington, DC 20460, Attention Docket ID No. EPA–HQ– OAR–2009–0286.

• Hand Delivery: EPA Docket Center, (EPA/DC) EPA West, Room 3334, 1301 Constitution Ave., NW., Washington, DC, Attention Docket ID No. EPA–HQ– OAR–2009–0286. Such deliveries are only accepted during the Docket’s normal hours of operation, and special arrangements should be made for deliveries of boxed information.

Instructions: Direct your comments to Docket ID No. EPA–HQ–OAR–2009– 0286. EPA’s policy is that all comments received will be included in the public docket without change and may be made available online at http:// www.regulations.gov, including any personal information provided, unless the comment includes information claimed to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through http:// www.regulations.gov or e-mail. The www.regulations.gov Web sites is an

‘‘anonymous access ’’ system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an e-mail comment directly to EPA without going through www.regulations.gov, your e-mail 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, 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 EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be