17584 Federal Register / Vol. 76, No. 61 / Wednesday, March 30, 2011 / Proposed Rules 

pilot-compartment view, the SVS must 

meet the following requirements: 

a. The SVS design must minimize 

unacceptable display characteristics or 

artifacts (e.g., terrain shadowing against 

a dark background) that obscure the 

desired image of the scene, impair the 

pilot’s ability to detect and identify 

visual references, mask flight hazards, 

distract the pilot, or otherwise degrade 

task performance or safety. 

b. Control of SVS image display 

brightness must be sufficiently effective 

in dynamically changing background 

(ambient) lighting conditions to avoid 

pilot distraction, impairment of the 

pilot’s ability to detect and identify 

visual references, masking of flight 

hazards, or to otherwise degrade task 

performance or safety. If automatic 

control for image brightness is not 

provided, it must be shown that a 

single, manual setting is satisfactory for 

the range of lighting conditions 

encountered during a time-critical, highworkload phase of flight (e.g., lowvisibility instrument approach). 

c. A readily accessible control must be 

provided that permits the pilot to 

immediately deactivate and reactivate 

display of the SVS image on demand, 

without having to remove hands from 

the flight controls and throttles. 

d. The SVS image on the HUD must 

not impair the pilot’s use of guidance 

information, or degrade the presentation 

and pilot awareness of essential flight 

information displayed on the HUD, such 

as alerts, airspeed, attitude, altitude and 

direction, approach guidance, 

windshear guidance, TCAS resolution 

advisories, or unusual-attitude recovery 

cues. 

e. The SVS image and the HUD 

symbols, which are spatially referenced 

to the pitch scale, outside view, and 

image, must be scaled and aligned (i.e., 

conformal) to the external scene. In 

addition, the SVS image and the HUD 

symbols—when considered singly or in 

combination—must not be misleading, 

cause pilot confusion, or increase 

workload. Airplane attitudes or crosswind conditions may cause certain 

symbols (e.g., the zero-pitch line or 

flight-path vector) to reach field-of-view 

limits, such that they cannot be 

positioned conformally with the image 

and external scene. In such cases, these 

symbols may be displayed but with an 

altered appearance that makes the pilot 

aware that they are no longer displayed 

conformally (for example, ‘‘ghosting’’). 

The combined use of symbology and 

runway image may not be used for path 

monitoring when path symbology is no 

longer conformal. 

f. A HUD system used to display SVS 

images must, if previously certified, 

continue to meet all of the requirements 

of the original approval. 

3. The safety and performance of the 

pilot tasks associated with the use of the 

pilot-compartment view must be not be 

degraded by the display of the SVS 

image. These tasks include the 

following: 

a. Detection, accurate identification 

and maneuvering, as necessary, to avoid 

traffic, terrain, obstacles, and other 

flight hazards. 

b. Accurate identification and 

utilization of visual references required 

for every task relevant to the phase of 

flight. 

4. Appropriate limitations must be 

stated in the Operating Limitations 

section of the Airplane Flight Manual to 

prohibit the use of the SVS for functions 

that have not been found to be 

acceptable. 

Issued in Renton, Washington, on March 

18, 2011. 

K.C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2011–7414 Filed 3–29–11; 8:45 am] 

BILLING CODE 4910–13–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 52 

[EPA–R06–OAR–2010–0190; FRL–9287–7] 

Approval and Promulgation of 

Implementation Plans; Oklahoma; 

Regional Haze State Implementation 

Plan; Federal Implementation Plan for 

Interstate Transport of Pollution 

Affecting Visibility and Best Available 

Retrofit Technology Determinations 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Announcement of public 

hearing. 

SUMMARY: On March 22, 2011, EPA 

published a proposal in the Federal 

Register to approve and disapprove 

portions of State Implementation Plan 

(SIP) revisions submitted by the State of 

Oklahoma and promulgate a Federal 

Implementation Plan (FIP) to address 

the Clean Air Act requirement for best 

available retrofit technology (BART) for 

sulfur dioxide (SO2) emissions and to 

prevent emissions from Oklahoma 

sources from interfering with other 

states’ measures to protect visibility. In 

the notice EPA announced an open 

house and public hearing for the 

proposal to be held April 13, 2011, in 

Oklahoma City, Oklahoma. In this 

notice EPA is announcing an additional 

open house and public hearing to be 

held in Tulsa, Oklahoma on April 14, 

2011. More information is provided in 

SUPPLEMENTARY INFORMATION. 

DATES: Public hearings, preceded by an 

open house, will be held on April 13, 

2011, in Oklahoma City, Oklahoma, and 

April 14, 2011, in Tulsa, Oklahoma. 

ADDRESSES: The April 13, 2011, open 

house and public hearing will be held 

at the Metro Technology Centers, 

Springlake Campus, Business 

Conference Center, Meeting Rooms H 

and I, 1900 Springlake Drive, Oklahoma 

City, Oklahoma 73111, (405) 424–8324. 

The April 14, 2011, open house and 

public hearing will be held at the Tulsa 

Tech—Riverside Campus, in the 

Auditorium of the Alliance Conference 

Center, 801 East 91st Street, Tulsa, 

Oklahoma 74132, (918) 828–4000. 

Driving directions to the Tulsa Tech— 

Riverside Campus may also be found 

using the following address: 801 West K 

Place, Jenks, Oklahoma 74037. 

FOR FURTHER INFORMATION CONTACT: Joe 

Kordzi, EPA Region 6 Air Planning 

Section, telephone (214) 665–7186, email address r6air_okhaze@epa.gov. 

SUPPLEMENTARY INFORMATION: 

Throughout this document whenever 

‘‘we’’, ‘‘us’’, or ‘‘our’’ is used, we mean the 

EPA. On March 22, 2011, we published 

a proposal in the Federal Register to (1) 

approve and disapprove portions of SIP 

revisions submitted by the State of 

Oklahoma and (2) promulgate a FIP to 

address the Clean Air Act requirement 

for BART for SO2 emissions and to 

prevent emissions from Oklahoma 

sources from interfering with other 

states’ measures to protect visibility. See 

76 FR 16168. Our proposal can be 

accessed online at 

http://www.regulations.gov (Docket No. 

EPA–R06–OAR–2010–0190). In the 

notice we announced an open house 

and public hearing for the proposal to 

be held Wednesday, April 13, 2011, in 

Oklahoma City, Oklahoma. We have 

scheduled an additional open house and 

public hearing to be held in Tulsa, 

Oklahoma on Thursday, April 14, 2011. 

The Oklahoma City open house and 

public hearing is scheduled to be held 

on Wednesday April 13, 2011, at the 

Metro Technology Centers, Springlake 

Campus, Business Conference Center, 

Meeting Rooms H and I, 1900 

Springlake Drive, Oklahoma City, 

Oklahoma 73111, (405) 424–8324. The 

Metro Technology Centers Springlake 

Campus is located at the intersection of 

Martin Luther King Ave. and Springlake 

Drive between NE. 36th and NE. 50th 

just south of the Oklahoma City Zoo and 

Kirkpatrick Center. Parking for the 

WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS

Federal Register / Vol. 76, No. 61 / Wednesday, March 30, 2011 / Proposed Rules 17585 

Business Conference Center is available 

at no charge. 

The Tulsa open house and public 

hearing is scheduled to be held on 

Thursday, April 14, 2011, at the Tulsa 

Tech—Riverside Campus, in the 

Auditorium of the Alliance Conference 

Center, 801 East 91st Street, Tulsa, 

Oklahoma 74132, (918) 828–4000. 

Driving directions to the Tulsa Tech— 

Riverside Campus may also be found 

using the following address: 801 West K 

Place, Jenks, Oklahoma 74037. The 

Tulsa Tech—Riverside Campus is 

located on the south side of Tulsa, and 

is east of Highway 75 and north of the 

Creek Turnpike. Parking is available on 

campus at no charge. 

For both locations the open house 

will begin at 1 p.m. and end at 3 p.m. 

local time. The public hearing will be 

held from 4 p.m. until 6 p.m., and again 

from 7 p.m. until 9 p.m. Opening 

remarks for the public hearing will be 

provided at 4 p.m., and again at 7 p.m. 

The public hearing will provide 

interested parties the opportunity to 

present information and opinions to 

EPA concerning our proposal. Interested 

parties may also submit written 

comments, as discussed in the proposal. 

Written statements and supporting 

information submitted during the 

comment period will be considered 

with the same weight as any oral 

comments and supporting information 

presented at the public hearing. We will 

not respond to comments during the 

public hearing. When we publish our 

final action, we will provide written 

responses to all oral and written 

comments received on our proposal. To 

provide opportunities for questions and 

discussion, we will hold an open house 

prior to the public hearing. During the 

open house, EPA staff will be available 

to informally answer questions on our 

proposed action. Any comments made 

to EPA staff during the open house must 

still be provided formally in writing or 

orally during the public hearing in order 

to be considered in the record. 

At the public hearing, the hearing 

officer may limit the time available for 

each commenter to address the proposal 

to 5 minutes or less if the hearing officer 

determines it to be appropriate. We will 

not be providing equipment for 

commenters to show overhead slides or 

make computerized slide presentations. 

Any person may provide written or oral 

comments and data pertaining to our 

proposal at the Public Hearing. 

Verbatim transcripts, in English, of the 

hearing and written statements will be 

included in the rulemaking docket. 

Dated: March 23, 2011. 

Carl E. Edlund, 

Multimedia Planning and Permitting Division, 

Director, Region 6. 

[FR Doc. 2011–7459 Filed 3–29–11; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 52 

[EPA–R07–OAR–2011–0309; FRL–9287–9] 

Approval and Promulgation of 

Implementation Plans; State of 

Missouri 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Proposed rule. 

SUMMARY: EPA is proposing to approve 

the State Implementation Plan (SIP) 

submittal from the state of Missouri 

addressing the requirements of Clean 

Air Act (CAA) sections 110(a)(1) and (2) 

for the 1997 revisions to the National 

Ambient Air Quality Standards 

(NAAQS) for ozone. Section 110(a)(1) 

requires that each state adopt and 

submit a SIP to support implementation 

of each new or revised NAAQS 

promulgated by the EPA and these SIPs 

are commonly referred to as 

‘‘infrastructure’’ SIPs. EPA believes that 

Missouri’s infrastructure SIP adequately 

addresses the elements described in 

section 110(a)(2) and further described 

in the October 2, 2007, guidance for 

infrastructure SIPs issued by the EPA 

Office of Air Quality Planning and 

Standards. However, because EPA 

already approved the portion of 

Missouri’s SIP submittal relating to the 

interstate transport infrastructure 

element, section 110(a)(2)(D)(i), this 

proposed rulemaking does not address 

the interstate transport element, nor 

does this proposal reopen any aspect of 

EPA’s prior action on the interstate 

transport element. Furthermore, this 

action does not address infrastructure 

requirements with respect to the 1997 

PM2.5 NAAQS or the 2006 revisions to 

the NAAQS. Those requirements will be 

addressed in future rulemaking. 

DATES: Comments must be received on 

or before April 29, 2011. 

ADDRESSES: Submit your comments, 

identified by Docket ID No. EPA–R07– 

OAR–2011–0309 by one of the following 

methods: 

1. http://www.regulations.gov. Follow 

the on-line instructions for submitting 

comments. 

2. E-mail: kramer.elizabeth@epa.gov. 

3. Mail: Ms. Elizabeth Kramer, Air 

Planning and Development Branch, U.S. 

Environmental Protection Agency, 

Region 7, Air and Waste Management 

Division, 901 North 5th Street, Kansas 

City, Kansas 66101. 

4. Hand Delivery or Courier: Deliver 

your comments to Ms. Elizabeth 

Kramer, Air Planning and Development 

Branch, U.S. Environmental Protection 

Agency, Region 7, Air and Waste 

Management Division, 901 North 5th 

Street, Kansas City, Kansas 66101. 

Instructions: Direct your comments to 

Docket ID No. EPA–R07–OAR–2011– 

0309. 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 through http:// 

www.regulations.gov or e-mail 

information that you consider to be CBI 

or otherwise protected. The http:// 

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 http:// 

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 

able to consider your comment. 

Electronic files should avoid the use of 

special characters, any form of 

encryption, and should be free of any 

defects or viruses. 

Docket: All documents in the 

electronic docket are listed in the 

http://www.regulations.gov index. 

Although listed in the index, some 

information is not publicly available, 

i.e., 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 http:// 

www.regulations.gov or in hard copy at 

the U.S. Environmental Protection 

Agency, Region 7, 901 North 5th Street, 

Kansas City, Kansas 66101, from 8 a.m. 

to 4:30 p.m., Monday through Friday, 

WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS