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Supplemental NADA is approved as of May 29, 2001, and the regulations are amended in 21 CFR 522.313 to reflect the approval. The basis of approval is discussed in the freedom of information summary.

In accordance with the freedom of information provisions of 21 CFR part 20 and 514.11(e)(2)(ii), a summary of safety and effectiveness data and information submitted to support approval of this supplemental application may be seen in the Dockets Management Branch (HFA305), Food and Drug Administration, 5630 Fishers Lane, rm. 1061, Rockville, MD 20852, between 9 a.m. and 4 p.m., Monday through Friday.

Under section 512(c)(2)(F)(iii) of the Federal Food, Drug, and Cosmetic Act (21 U.S.C. 360b(c)(2)(F)(iii)), this supplemental approval qualifies for 3 years of marketing exclusivity beginning May 29, 2001, because the supplement application contains substantial evidence of the effectiveness of the drug involved, any studies of animal safety or, in the case of foodproducing animals, human food safety studies (other than bioequivalence or residue studies) required for approval of the supplemental application and conducted or sponsored by the applicant.

The agency has determined under 21 CFR 25.33(a)(1) that this action is of a type that does not individually or cumulatively have a significant effect on the human environment. Therefore, neither an environmental assessment nor an environmental impact statement is required.

This rule does not meet the definition of ``rule'' in 5 U.S.C. 804(3)(A) because it is a rule of ``particular applicability.'' Therefore, it is not subject to the congressional review requirements in 5 U.S.C. 801808.
List of Subjects in 21 CFR Part 522

Animal drugs.

Therefore, under the Federal Food, Drug, and Cosmetic Act and under authority delegated to the Commissioner of Food and Drugs and redelegated to the Center for Veterinary Medicine, 21 CFR part 522 is amended as follows:
PART 522IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS

1. The authority citation for 21 CFR part 522 continues to read as follows:

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

Sec. 522.313 [Amended]

2. Section 522.313 Ceftiofur sodium powder for injection is amended in paragraph (d)(1)(i) by adding after ``intramuscularly'' the phrase ``or subcutaneously''.

Dated: June 7, 2001.
Claire M. Lathers,
Director, Office of New Animal Drug Evaluation, Center for Veterinary Medicine.
[FR Doc. 0115083 Filed 61401; 8:45 am] BILLING CODE 416001S

FOR FURTHER INFORMATION CONTACT Naba K. Das, Center for Veterinary Medicine (HFV130), Food and Drug Administration, 7500 Standish Pl., Rockville, MD 20855, 3018277569.