[Code of Federal Regulations]
[Title 21, Volume 6]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR556.113]

[Page 340]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 556--TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD--Table of Contents
 
     Subpart B--Specific Tolerances for Residues of New Animal Drugs
 
Sec.  556.113   Ceftiofur.

    (a) Acceptable daily intake (ADI). The ADI for total residues of 
ceftiofur is 30 micrograms per kilogram of body weight per day.
    (b) Tolerances--(1) Swine, poultry, and sheep. A tolerance for 
residues of ceftiofur in edible tissue is not required.
    (2) Cattle. Tolerances are established for residues of 
desfuroylceftiofur (marker residue) in edible cattle tissues at 8 parts 
per million in kidney (target tissue), 2 parts per million in the liver, 
1 part per million in muscle, and 100 parts per billion in milk.

[63 FR 53579, Oct. 6, 1998]