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contains regulatory documents having general

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are keyed to and codified in the Code of

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Rules and Regulations Federal Register

16683 

Vol. 76, No. 58 

Friday, March 25, 2011 

DEPARTMENT OF AGRICULTURE 

Animal and Plant Health Inspection 

Service 

9 CFR Part 93 

[Docket No. APHIS–2008–0112] 

RIN 0579–AD31 

Importation of Horses From 

Contagious Equine Metritis-Affected 

Countries 

AGENCY: Animal and Plant Health 

Inspection Service, USDA. 

ACTION: Interim rule and request for 

comments. 

SUMMARY: We are amending the 

regulations regarding the importation of 

horses from countries affected with 

contagious equine metritis (CEM) by 

incorporating an additional certification 

requirement for imported horses 731 

days of age or less and adding new 

testing protocols for test mares and 

imported stallions and mares more than 

731 days of age. We are taking these 

actions in response to incidents that 

prompted an investigation by an expert 

review panel, which identified specific 

weaknesses in the current regulations. 

This action will provide additional 

safeguards against the introduction of 

CEM through the importation of affected 

horses. 

DATES: This interim rule is effective 

March 25, 2011. We will consider all 

comments that we receive on or before 

May 24, 2011. 

ADDRESSES: You may submit comments 

by either of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov/fdmspublic/

component/main?main=DocketDetail&

d=APHIS-2008-0112 to submit or view 

comments and to view supporting and 

related materials available 

electronically. 

• Postal Mail/Commercial Delivery: 

Please send one copy of your comment 

to Docket No. APHIS–2008–0112, 

Regulatory Analysis and Development, 

PPD, APHIS, Station 3A–03.8, 4700 

River Road, Unit 118, Riverdale, MD 

20737–1238. Please state that your 

comment refers to Docket No. APHIS– 

2008–0112. 

Reading Room: You may read any 

comments that we receive on this 

docket in our reading room. The reading 

room is located in room 1141 of the 

USDA South Building, 14th Street and 

Independence Avenue, SW., 

Washington, DC. Normal reading room 

hours are 8 a.m. to 4:30 p.m., Monday 

through Friday, except holidays. To be 

sure someone is there to help you, 

please call (202) 690–2817 before 

coming. 

Other Information: Additional 

information about APHIS and its 

programs is available on the Internet at 

http://www.aphis.usda.gov. 

FOR FURTHER INFORMATION CONTACT: Dr. 

Ellen Buck, Senior Staff Veterinarian, 

Equine Imports, National Center for 

Import and Export, VS, APHIS, 4700 

River Road, Unit 36, Riverdale, MD 

20737–1231; (301) 734–8364. 

SUPPLEMENTARY INFORMATION: 

Background 

The regulations in 9 CFR part 93 

(referred to below as the regulations) 

prohibit or restrict the importation of 

certain animals into the United States to 

prevent the introduction of 

communicable diseases of livestock. 

Subpart C—Horses, §§ 93.300 through 

93.326, pertains to the importation of 

horses into the United States. Sections 

93.301 and 93.304 of the regulations 

contain specific provisions for the 

importation of horses from regions 

affected with contagious equine metritis 

(CEM), which is a highly contagious 

venereal disease of horses and other 

equines caused by an infection with the 

bacterium Taylorella equigenitalis. 

The regulations provide that some 

types of horses may be imported from 

CEM-affected regions without 

restriction. For instance, weanlings and 

yearlings are exempt under 

§ 93.301(c)(2)(iii). Other horses are 

allowed to be imported from CEMaffected regions provided they meet 

certain requirements that include 

quarantine, testing, and treatment as 

provided under § 93.301(d), (e), and (f). 

Horses that fall under this category 

include Spanish Pure Breed horses from 

Spain; racing thoroughbreds from 

Germany, France, Ireland, and the 

United Kingdom; stallions and mares 

over 731 days of age; and horses that are 

imported under special provisions for 

temporary importation for competition 

or entertainment purposes. 

Approximately 2,500 horses imported 

from CEM-affected regions undergo 

CEM quarantine in the United States 

each year. Over the past 10 years, 

despite current requirements for preimport CEM testing in the country of 

origin, more than 28 CEM-positive 

horses have been identified during 

quarantine in the United States. 

In 2006, a private veterinarian in the 

United States detected a T. equigenitalis 

infection during a routine breeding 

soundness exam of an imported stallion 

that had been released from CEM 

quarantine in 2004 after testing negative 

for CEM. The epidemiological 

investigation that followed detected two 

other infected stallions on the same 

premises. This incident jeopardized the 

CEM-free status of the United States and 

had a significant impact on U.S. horse 

exports. In 2007, in response to this 

incident, APHIS’ Veterinary Services 

program initiated a review and 

assessment by Federal, State, and 

industry officials of U.S. equine import 

activities to identify any improvements 

to testing procedures that may be 

necessary to better mitigate the risk of 

a CEM-positive horse being released 

into the U.S. equine population. 

A second incident indicating a need 

to strengthen the CEM regulations 

occurred in April 2008 when an 

imported mare undergoing CEM 

quarantine demonstrated positive 

results for CEM on a complementfixation (CF) test, which has not been 

required for imported mares under the 

regulations; the required sampling of the 

clitoral sinuses and clitoral fossa of the 

mare had shown negative results for T. 

equigenitalis. The attending veterinarian 

administered the CF test because she 

knew about the recommendations that 

followed from the review and 

assessment of the 2006 incident. 

In December 2008, a U.S. origin 

stallion with no history of residence in 

a CEM-affected region was undergoing 

routine testing for semen export, and 

cultured positive for CEM. APHIS 

initiated an epidemiologic investigation 


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16684 Federal Register / Vol. 76, No. 58 / Friday, March 25, 2011 / Rules and Regulations 

1To view the OIE Terrestrial Animal Health 

Code, go to http://www.oie.int/eng/normes/mcode/ 

en_sommaire.htm. 

to identify other potentially infected 

horses. Ultimately 23 stallions and 

5 mares were identified as infected. An 

additional 250 stallions and 718 mares 

were identified as exposed to positive 

horses. All infected or exposed horses 

required culturing and treatment at their 

owners’ expense. The suspected source 

of the outbreak was a stallion imported 

from Denmark in late 2000 whose CEM 

infection was not detected on import 

testing. Because of the outbreak, some 

countries no longer recognized the 

United States as CEM-free and 

consequently placed restrictions on U.S. 

equine exports. The 2006 and 2008 

incidents indicate that the regulations 

that have been in place are inadequate 

to identify all imported horses infected 

with T. equigenitalis. 

Given the incidents noted above, we 

have determined that the following 

regulatory changes are necessary and 

need to be implemented immediately in 

order to prevent the potential 

introduction and spread of CEM in the 

United States. 

Exemption for Weanlings and Yearlings 

The regulations in § 93.301(c)(2)(iii) 

have exempted weanlings or yearlings 

(defined as not more than 731 days of 

age) from CEM quarantine requirements 

when their age is certified on the import 

health certificate required under 

§ 93.314(a). The regulations have 

provided for this exemption because 

horses less than 2 years old have 

generally been considered too young to 

breed and therefore pose only a minimal 

risk of entering the United States with 

a venereal disease such as CEM. 

However, this assumption is now in 

question because APHIS has identified 

imported mares 731 days or less of age 

that were pregnant and therefore at risk 

of CEM infection. 

While retaining the current 

certification-of-age requirement, we are 

limiting the exemption from CEMrelated restrictions to weanlings and 

yearlings that have never been bred, and 

we are requiring that their breeding 

status be certified on the import health 

certificate required under § 93.314(a). 

This change to the regulations provides 

an additional safeguard against the 

spread of CEM to the U.S. horse 

population. 

Imported Stallions 

Because stallions do not show clinical 

signs of CEM after becoming exposed to 

the bacterium T. equigenitalis, diagnosis 

of CEM cannot be based on clinical 

signs alone. Furthermore, culture tests 

do not always detect T. equigenitalis. 

The stallion can look normal and test 

negative for T. equigenitalis, but still 

infect the mare to which it is bred 

naturally or by artificial insemination. 

Therefore, the regulations under 

§ 93.301(e) provide that stallions over 

731 days of age from CEM-affected 

regions are to be bred to two test mares. 

Specifically, the regulations in 

paragraph (e)(3)(i) have stated that upon 

arrival at a CEM facility in an approved 

State, a set of specimens must be taken 

from a stallion’s prepuce, urethral sinus, 

and fossa glandis, and that after negative 

culture results have been obtained, the 

stallion must be test bred to two test 

mares. After being test bred, a stallion 

that cultured negative prior to being test 

bred has not been required to undergo 

another culture to test for T. 

equigenitalis unless a test mare tested 

positive for CEM, in which case the 

stallion would be treated for CEM and 

the testing process begun again. 

We are amending paragraph (e)(3)(i) 

of § 93.301 to require a fourth specimen 

to be taken from the stallion’s distal 

urethra and to increase the number of 

required sets of specimens (a set 

consists of one culture swab from each 

location) from imported stallions from 

one set to three sets at each of the four 

sites, all taken within a 12-day period 

with a minimum of 72 hours between 

each set. At least two of the three sets 

of specimens must be collected from the 

stallion, with negative results, before the 

stallion is bred to two test mares. If the 

test mares test negative for CEM after 

breeding, and if all of the stallion’s 

culture specimens test negative for 

CEM, then the stallion will be released 

from quarantine. 

These changes to the regulations will 

increase the likelihood of detecting T. 

equigenitalis in imported stallions, 

thereby reducing the risk that imported 

stallions will be released from 

quarantine with undiagnosed CEM 

infections. 

Test Mares 

Test mares are mares used to test 

stallions for CEM. To qualify to become 

a test mare, each mare must test 

negative for CEM as provided under 

§ 93.301(e)(4). The regulations in 

§ 93.301(e)(3)(i)(B) have required that 

the mucosal surfaces of the clitoral 

sinuses and clitoral fossa of a test mare 

must be cultured for T. equigenitalis on 

the third, sixth, and ninth days after 

breeding with an imported stallion in 

CEM quarantine. To increase the 

likelihood of detecting CEM in test 

mares, we are amending the regulations 

to require that either the distal cervix or 

endometrium be cultured for CEM in 

addition to the clitoral sinuses and 

clitoral fossa. We are also extending the 

allowable timeframe in (e)(4)(ii) to 

complete all three culture sets from the 

current 7-day period to a 12-day period, 

with specimens collected anytime 

between the third and the fourteenth 

day after breeding, with a minimum of 

72 hours between each set. The 

additional time allowed to collect all 

culture samplings was added at the 

request of the veterinarians, because the 

7-day timeframe did not allow any 

flexibility in scheduling, since samples 

generally could not be shipped or 

processed on weekends. Extending the 

timeframe from 7 days to 12 days to 

account for the laboratory’s hours of 

operations will help decrease testing 

delays caused by unusable samples. 

Furthermore, the regulations in 

paragraph (e)(3)(i)(B) have required the 

blood sample for the required CF test to 

be drawn from the test mare on the 

fifteenth day after breeding. We are 

amending the paragraph to require that 

a test mare’s blood be drawn for a CF 

test on the twenty-first day after 

breeding. This amendment aligns our 

requirements with the World 

Organization for Animal Health’s (OIE) 

Manual of Diagnostic Tests,1 which 

recommends screening mares between 

21 and 45 days after breeding. 

Imported Mares 

Once an imported mare has arrived at 

a CEM quarantine facility in an 

approved State, the regulations in 

§ 93.301(e)(5)(i) have required 

specimens to be collected from the 

mucosal surfaces of the clitoral sinuses 

and clitoral fossa on days 1, 4, and 7 

during a 7-day period with all culture 

sets received by an approved laboratory 

within 48 hours of collection. To 

increase the likelihood of detecting CEM 

in these imported mares, we are adding 

a requirement, as we are doing for test 

mares, to collect specimens from either 

the distal cervix or the endometrium in 

nonpregnant mares in addition to the 

specimens taken from the mucosal 

surfaces of the clitoral sinuses and 

clitoral fossa. To help avoid test delays 

and unusable samples due to facility 

and laboratory hours of operations, we 

are extending the timeframe to complete 

sampling from the current 7-day period 

to a 12-day period with no less than 72 

hours between each set. 

In addition, we are now requiring that 

an imported mare be given a CF test 

upon arrival at a State’s CEM quarantine 

facility. CF testing will allow 

identification of antibodies from any 

recent exposure to CEM and provide 


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Federal Register / Vol. 76, No. 58 / Friday, March 25, 2011 / Rules and Regulations 16685 

supplementary information concerning 

the mare’s CEM status. 

Spanish Pure Breed Horses and 

Thoroughbred Horses; Horses 

Temporarily Imported for Competition 

or Entertainment Purposes 

To reflect the changes discussed 

above, we are amending paragraph 

(d)(1)(ii)(D) in § 93.301 to require that 

Spanish Pure Breed horses from Spain 

and thoroughbred horses over 731 days 

of age from France, Germany, Ireland, 

and the United Kingdom, test negative 

for CEM based on the culturing of three 

sets of specimens. For female horses, the 

specimens must be collected from the 

mucosal surfaces of the clitoral fossa, 

distal cervix or endometrium, and the 

clitoral sinuses; for any male horses, the 

specimens must be collected from the 

surfaces of the prepuce, the urethral 

sinus, the distal urethra, and the fossa 

glandis, including the diverticulum of 

the fossa glandis. For both female and 

male horses, the sets of specimens must 

be collected on three separate occasions 

within a 12-day period with no less than 

72 hours between each set, and the last 

of these sets of specimens must be 

collected within 30 days prior to the 

exportation of the horses to the United 

States. All specimens must be collected 

by a licensed veterinarian who either is, 

or is acting in the presence of, the 

veterinarian signing the required health 

certificate. 

We are making similar changes to 

paragraph (f)(3) in § 93.301, which 

contains special provisions for 

temporary importation of horses for 

competition or entertainment purposes. 

Specifically, we will require that such 

horses be accompanied by a health 

certificate that certifies that cultures 

negative for CEM were obtained from 

three sets of specimens. For female 

horses, the specimens must be collected 

from the mucosal surfaces of the clitoral 

fossa and clitoral sinuses, with one set 

of specimens including a specimen from 

the surfaces of the distal cervix or 

endometrium; for male horses, the 

specimens must be collected from the 

surfaces of the prepuce, the urethral 

sinus, the distal urethra, and the fossa 

glandis, including the diverticulum of 

the fossa glandis. For both female and 

male horses, the sets of specimens must 

be collected on three separate occasions 

within a 12-day period with no less than 

72 hours between each set, and the last 

of these sets of specimens must be 

collected within 30 days prior to the 

exportation of horses to the United 

States. All specimens must be collected 

by a licensed veterinarian who either is, 

or is acting in the presence of, the 

veterinarian signing the certificate. 

These changes, which represent an 

increase in the number of specimens 

that must be collected, are consistent 

with the changes we are making for 

other mares and stallions being 

imported from CEM-affected regions to 

the United States and will provide 

additional safeguards against the spread 

of CEM to the U.S. horse population. 

Emergency Action 

This rulemaking is necessary on an 

emergency basis to prevent the 

introduction and spread of CEM into the 

equine population of the United States. 

Under these circumstances, the 

Administrator has determined that prior 

notice and opportunity for public 

comment are contrary to the public 

interest and that there is good cause 

under 5 U.S.C. 553 for making this rule 

effective less than 30 days after 

publication in the Federal Register. 

We will consider comments we 

receive during the comment period for 

this interim rule (see DATES above). 

After the comment period closes, we 

will publish another document in the 

Federal Register. The document will 

include a discussion of any comments 

we receive and any amendments we are 

making to the rule. 

Executive Order 12866 and Regulatory 

Flexibility Act 

This interim rule has been determined 

to be not significant for the purposes of 

Executive Order 12866 and, therefore, 

has not been reviewed by the Office of 

Management and Budget. 

We have prepared an initial 

regulatory flexibility analysis for this 

action. The analysis identifies U.S. 

importers of mares and stallions from 

CEM countries as the small entities most 

likely to be affected by this action and 

considers the costs associated with 

complying with new requirements. 

Based on the information presented in 

the analysis, we expect that U.S. 

importers will experience a slight 

increase in quarantine and treatment 

costs as a result of this action. The 

overall impact of the additional costs for 

the horse industry is not expected to be 

significant, given the relatively small 

number of horses imported from CEM 

countries. 

We invite comment on our initial 

regulatory flexibility analysis, which is 

posted with this interim rule on the 

Regulations.gov Web site (see 

ADDRESSES above for instructions for 

accessing Regulations.gov) and may be 

obtained from the person listed under 

FOR FURTHER INFORMATION CONTACT. 

Executive Order 12988 

This rule has been reviewed under 

Executive Order 12988, Civil Justice 

Reform. This rule: (1) Preempts all State 

and local laws and regulations that are 

in conflict with this rule; (2) has no 

retroactive effect; and (3) does not 

require administrative proceedings 

before parties may file suit in court 

challenging this rule. 

Paperwork Reduction Act 

This interim rule contains no 

information collection or recordkeeping 

requirements under the Paperwork 

Reduction Act of 1995 (44 U.S.C. 3501 

et seq.). 

List of Subjects in 9 CFR Part 93 

Animal diseases, Imports, Livestock, 

Poultry and poultry products, 

Quarantine, Reporting and 

recordkeeping requirements. 

Accordingly, we are amending 9 CFR 

part 93 as follows: 

PART 93—IMPORTATION OF CERTAIN 

ANIMALS, BIRDS, FISH, AND 

POULTRY, AND CERTAIN ANIMAL, 

BIRD, AND POULTRY PROUDUCTS; 

REQUIREMENTS FOR MEANS OF 

CONVEYANCE AND SHIPPING 

CONTAINERS 

■ 1. The authority citation for part 93 

continues to read as follows: 

Authority: 7 U.S.C. 1622 and 8301–8317; 

21 U.S.C. 136 and 136a; 31 U.S.C. 9701; 7 

CFR 2.22, 2.80, and 371.4. 

■ 2. Section 93.301 is amended as 

follows: 

■ a. By revising paragraph (c)(2)(iii); 

■ b. By revising paragraph (d)(1)(ii)(D); 

■ c. In paragraph (e)(1)(iii), by adding 

the words ‘‘distal urethra,’’ after the 

words ‘‘urethral sinus,’’ in the second 

sentence; 

■ d. By revising paragraphs (e)(3)(i) 

introductory text, (e)(3)(i)(B), (e)(4)(ii), 

and (e)(5)(i); and 

■ e. By revising paragraphs (f)(3). 

The revisions read as follows: 

§ 93.301 General prohibitions; exceptions. 

* * * * * 

(c) * * * 

(2) * * * 

(iii) Weanlings or yearlings that have 

never been used for breeding, and 

whose age and breeding status are 

certified on the import health certificate 

required under § 93.314(a); 

* * * * * 

(d) * * * 

(1) * * * 

(ii) * * * 

(D) For Spanish Pure Breed horses 

and thoroughbred horses over 731 days 


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16686 Federal Register / Vol. 76, No. 58 / Friday, March 25, 2011 / Rules and Regulations 

of age, cultures negative for CEM were 

obtained from three sets of specimens 

collected within a 12-day period from 

the mucosal surfaces of the clitoral 

fossa, distal cervix or endometrium, and 

the clitoral sinuses of any female horses 

and from the surfaces of the prepuce, 

the urethral sinus, the distal urethra, 

and the fossa glandis, including the 

diverticulum of the fossa glandis, of any 

male horses. For both male and female 

horses, the sets of specimens must be 

taken within a 12-day period with no 

less than 72 hours between each set, and 

the last of these sets of specimens must 

be collected within 30 days prior to 

exportation. All specimens required by 

this paragraph must be collected by a 

licensed veterinarian who either is, or is 

acting in the presence of, the 

veterinarian signing the certificate; and 

* * * * * 

(e) * * * 

(3) * * * 

(i) Once the stallion is in the 

approved State, three sets of specimens 

consisting of one culture swab from 

each location shall be taken from the 

prepuce, the urethral sinus, the distal 

urethra, and the fossa glandis, including 

the diverticulum of the fossa glandis, of 

the stallion and be cultured for CEM. 

The sets of specimens must be collected 

on three separate occasions within a 12- 

day period with no less than 72 hours 

between each set. No sooner than after 

the second set of specimens is collected 

and cultured for CEM with negative 

results, the stallion must be test bred to 

two test mares that meet the 

requirements of paragraph (e)(4) of this 

section. Upon completion of the test 

breeding: 

* * * * * 

(B) Each mare to which the stallion 

has been test bred shall be cultured for 

CEM from three sets of specimens from 

the mucosal surfaces of the clitoral 

fossa, clitoral sinuses, and from either 

the distal cervix or endometrium 

between the third and fourteenth day 

after breeding, with negative results. 

The sets of specimens must be collected 

on three separate occasions within a 12- 

day period with no less than 72 hours 

between each set. A complement 

fixation test for CEM must be done with 

negative results on the twenty-first day 

after the breeding. 

* * * * * 

(4) * * * 

(ii) The test mares must be qualified 

prior to breeding as apparently free from 

CEM and may not be used for breeding 

from the time specimens are taken to 

qualify the mares as free from CEM. To 

qualify, each mare shall be tested with 

negative results by a complement 

fixation test for CEM, and specimens 

taken from each mare shall be cultured 

negative for CEM. For each culture, sets 

of specimens shall be collected on three 

separate occasions from the mucosal 

surfaces of the clitoral fossa, clitoral 

sinuses, and from either the distal 

cervix or endometrium within a 12-day 

period with no less than 72 hours 

between each set. 

* * * * * 

(5) * * * 

(i) Once the mare is in the approved 

State, a complement fixation test for 

CEM must be done, and three sets of 

specimens shall be collected from the 

mucosal surfaces of the clitoral fossa 

and clitoral sinuses, with one set of 

specimens including a specimen from 

the surfaces of the distal cervix or 

endometrium in nonpregnant mares. 

The sets of specimens must be collected 

on three separate occasions within a 12- 

day period with no less than 72 hours 

between each set. An accredited 

veterinarian shall collect specimens and 

shall submit each set of specimens to 

the National Veterinary Services 

Laboratories in Ames, IA, or to a 

laboratory approved by the 

Administrator in accordance with 

paragraph (i) of this section to conduct 

CEM cultures and tests. 

* * * * * 

(f) * * * 

(3) At the time of importation, each 

horse must be accompanied by an 

import permit in accordance with 

§ 93.304 and a health certificate issued 

in accordance with § 93.314. For horses 

imported in accordance with paragraph 

(f)(2) of this section, the health 

certificate must also certify that cultures 

negative for CEM were obtained from 

three sets of specimens collected from 

the mucosal surfaces of the clitoral fossa 

and clitoral sinuses, with one set of 

specimens including a specimen from 

the surfaces of the distal cervix or 

endometrium, of any female horses and 

from the surfaces of the prepuce, the 

urethral sinus, the distal urethra, and 

the fossa glandis, including the 

diverticulum of the fossa glandis, of any 

male horses. For both female and male 

horses, the sets of specimens must be 

collected on three separate occasions 

within a 12-day period with no less than 

72 hours between each set, and the last 

of these sets of specimens must be 

collected within 30 days prior to 

exportation. All specimens required by 

this paragraph must be collected by a 

licensed veterinarian who either is, or is 

acting in the presence of, the 

veterinarian signing the certificate. 

* * * * * 

Done in Washington, DC, this 21st day of 

March 2011. 

Kevin Shea, 

Acting Administrator, Animal and Plant 

Health Inspection Service. 

[FR Doc. 2011–7098 Filed 3–24–11; 8:45 am] 

BILLING CODE 3410–34–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 97 

[Docket No. 30773; Amdt. No. 3417] 

Standard Instrument Approach 

Procedures, and Takeoff Minimums 

and Obstacle Departure Procedures; 

Miscellaneous Amendments 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This rule establishes, amends, 

suspends, or revokes Standard 

Instrument Approach Procedures 

(SIAPs) and associated Takeoff 

Minimums and Obstacle Departure 

Procedures for operations at certain 

airports. These regulatory actions are 

needed because of the adoption of new 

or revised criteria, or because of changes 

occurring in the National Airspace 

System, such as the commissioning of 

new navigational facilities, adding new 

obstacles, or changing air traffic 

requirements. These changes are 

designed to provide safe and efficient 

use of the navigable airspace and to 

promote safe flight operations under 

instrument flight rules at the affected 

airports. 

DATES: This rule is effective March 25, 

2011. The compliance date for each 

SIAP, associated Takeoff Minimums, 

and ODP is specified in the amendatory 

provisions. 

The incorporation by reference of 

certain publications listed in the 

regulations is approved by the Director 

of the Federal Register as of March 25, 

2011. 

ADDRESSES: Availability of matter 

incorporated by reference in the 

amendment is as follows: 

For Examination— 

1. FAA Rules Docket, FAA 

Headquarters Building, 800 

Independence Avenue, SW., 

Washington, DC 20591; 

2. The FAA Regional Office of the 

region in which the affected airport is 

located; 

3. The National Flight Procedures 

Office, 6500 South MacArthur Blvd., 

Oklahoma City, OK 73169 or 


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