Federal Register / Vol. 70, No. 223 / Monday, November 21, 2005 / Rules and Regulations 70047 

(b) * * * 

(3) Catfish. The tolerance for 

florfenicol amine (the marker residue) in 

muscle (the target tissue) is 1 ppm. 

(c) Related conditions of use. See 

§§ 520.955, 522.955, and 558.261 of this 

chapter. 

PART 558—NEW ANIMAL DRUGS FOR 

USE IN ANIMAL FEEDS 

■ 3. The authority citation for 21 CFR 

part 558 continues to read as follows: 

Authority: 21 U.S.C. 360b, 371. 

■ 4. In paragraph (d) of § 558.4, in the 

‘‘Category II’’ table, add an entry in 

alphabetical order for ‘‘Florfenicol’’ to 

read as follows: 

§ 558.4 Requirement of a medicated feed 

mill license. 

* * * * * 

(d) * * * 

CATEGORY II 

Drug Assay limits percent 1 Type A Type B maximum (100x) Assay limits percent 1 Type B/C 2

* * * * * * * 

Florfenicol 90–110 n/a 80–110 

* * * * * * * 

1Percent of labeled amount. 

2Values given represent ranges for either Type B or Type C medicated feeds. For those drugs that have two range limits, the first set is for a 

Type B medicated feed and the second set is for a Type C medicated feed. These values (ranges) have been assigned in order to provide for 

the possibility of dilution of a Type B medicated feed with lower assay limits to make Type C medicated feed. 

* * * * * 

■ 5. Add § 558.261 to read as follows: 

§ 558.261 Florfenicol. 

(a) Specifications. Type A medicated 

article containing 500 grams florfenicol 

per kilogram. 

(b) Sponsor. See No. 000061 in 

§ 510.600(c) of this chapter. 

(c) Special considerations—(1) 

Federal law limits this drug to use 

under the professional supervision of a 

licensed veterinarian. See § 558.6 of this 

chapter for additional requirements. 

(2) The expiration date of veterinary 

feed directives (VFDs) for florfenicol 

must not exceed 15 days from the date 

of issuance. VFDs for florfenicol shall 

not be refilled. 

(d) Related tolerances. See § 556.283 

of this chapter. 

(e) Conditions of use—(1) Catfish—(i) 

Amount. 10 milligrams per kilogram of 

fish daily for 10 consecutive days. 

(ii) Indications for use. For the control 

of mortality due to enteric septicemia of 

catfish associated with Edwardsiella 

ictaluri. 

(iii) Limitations. Feed containing 

florfenicol shall not be fed to catfish for 

more than 10 days. Following 10 days 

administration, fish should be reevaluated by a licensed veterinarian 

before reinitiating a further course of 

therapy. A dose-related decrease in 

hematopoietic/lymphopoietic tissue 

may occur. The time required for the 

hematopoietic/lymphopoietic tissues to 

regenerate was not evaluated. The 

effects of florfenicol on reproductive 

performance have not been determined. 

Feeds containing florfenicol must be 

withdrawn 12 days prior to slaughter. 

(2) [Reserved] 

Dated: November 8, 2005. 

Andrew J. Beaulieu, 

Acting Director, Center for Veterinary 

Medicine. 

[FR Doc. 05–22935 Filed 11–18–05; 8:45 am] 

BILLING CODE 4160–01–S 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 52 

[R04–OAR–2005–KY–0001–200521(c); FRL–

7999–5] 

Approval and Promulgation of 

Implementation Plans and Designation 

of Areas for Air Quality Planning 

Purposes; Kentucky; Redesignation of 

the Christian County, Kentucky Portion 

of the Clarksville-Hopkinsville 8-Hour 

Ozone Nonattainment Area to 

Attainment for Ozone; Correction 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Final rule; correction. 

SUMMARY: On October 21, 2005, at 70 FR 

61232, EPA published a withdrawal 

action of a direct final rule approving 

the redesignation of the Christian 

County, Kentucky portion of the 

Clarksville-Hopkinsville 8-hour ozone 

nonattainment area to attainment for 

ozone. This document corrects a Code of 

Federal Regulations (CFR) reference 

contained in the withdrawal action. 

DATES: This correction is effective 

November 21, 2005. 

FOR FURTHER INFORMATION CONTACT: Mr. 

Sean Lakeman, Regulatory Development 

Section, Air Planning Branch, Air, 

Pesticides and Toxics Management 

Division, U.S. Environmental Protection 

Agency Region 4, 61 Forsyth Street, 

SW., Atlanta, Georgia 30303–8960. The 

telephone number is (404) 562–9043. 

Mr. Lakeman can also be reached via 

electronic mail at 

lakeman.sean@epa.gov. 

SUPPLEMENTARY INFORMATION: EPA is 

making a correction to the document 

published October 21, 2005 (70 FR 

61232), which withdrew the direct final 

rule published September 22, 2005, (70 

FR 55550) approving the redesignation 

of the Christian County, Kentucky 

portion of the Clarksville-Hopkinsville 

8-hour ozone nonattainment area to 

attainment for ozone. EPA is correcting 

the citation to the CFR contained in the 

October 21, 2005, withdrawal action to 

exclude an erroneous reference to 40 

CFR 52.919. The last paragraph after the 

signature block on page 61232 should 

read as follows: ‘‘Accordingly, the 

amendment to 40 CFR 52.920 and 40 

CFR 81.318 (which published in the 

Federal Register on September 22, 2005, 

at 70 FR 55550) is withdrawn as of 

October 21, 2005.’’

Dated: November 15, 2005. 

J.I. Palmer Jr., 

Regional Administrator, Region 4. 

[FR Doc. 05–23086 Filed 11–18–05; 8:45 am] 

BILLING CODE 6560–50–P