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57998

Federal Register / Vol. 86, No. 200 / Wednesday, October 20, 2021 / Rules and Regulations
paragraphs d1i, d1iiB, d1iiiB, and d2 of this section.

d
1
iii
A Cattle intended for human consumption must not be slaughtered within 18 days from the last treatment.
This drug is not approved for use in female dairy cattle 20 months of age or older, including dry dairy cows. Use in these cattle may cause drug residues in milk and/or in calves born to these cows. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

PART 526INTRAMAMMARY DOSAGE
FORM NEW ANIMAL DRUGS
24. The authority citation for part 526
continues to read as follows:

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

b See Nos. 042791 and 061133 in 510.600c of this chapter.

Authority: 21 U.S.C. 354, 360b, 360ccc, 360ccc1, 371.

PART 556TOLERANCES FOR
RESIDUES OF NEW ANIMAL DRUGS
IN FOOD

26. The authority citation for part 556
continues to read as follows:

Authority: 21 U.S.C. 342, 360b, 371.

27. In 556.275:
a. Revise paragraph b1ii;
b. Remove paragraph b1iii; and c. Remove and reserve paragraphs b3ii, b4ii, and b5ii.
The revision reads as follows:

556.275

Fenbendazole.

b
1
ii Milk: 0.22 ppm fenbendazole sulfoxide marker residue.

25. In 526.1696, revise paragraph b to read as follows:

PART 558NEW ANIMAL DRUGS FOR
USE IN ANIMAL FEEDS

526.1696

Penicillin G procaine.

28. The authority citation for part 558
continues to read as follows:

29. In 558.76:
a. Revise paragraphs a1 and 2 and d1;
b. Redesignate paragraph d2 as paragraph d6; and c. Add new paragraph d2 and paragraphs d3 through 5.
The revisions and additions read as follows:

558.76

Bacitracin methylenedisalicylate.

a
1 Type A medicated articles containing feed grade bacitracin methylenedisalicylate equivalent to 10, 25, 30, 40, 50, 60, or 75 grams bacitracin per pound.
2 Type A medicated article containing feed grade bacitracin methylenedisalicylate equivalent to 50
grams bacitracin per pound.

d
1 Chickens
Bacitracin in grams per ton
Indications for use
Limitations
i 4 to 50

Broiler and replacement chickens: For increased rate of weight gain and improved feed efficiency.
Laying hens: For increased egg production and improved feed efficiency.
Broiler and replacement chickens: As an aid in the prevention of necrotic enteritis caused or complicated by Clostridium spp. or other organisms susceptible to bacitracin.
Broiler and replacement chickens: As an aid in the control of necrotic enteritis caused or complicated by Clostridium spp. or other organisms susceptible to bacitracin.

Feed continuously as sole ration

Indications for use
Limitations
ii 10 to 25
iii 50

iv 100 to 200

Feed continuously as sole ration for the first 7
months of egg production.
Feed continuously as sole ration

Feed continuously as sole ration. Start at first clinical signs of disease. Vary dosage based on severity of infection. Administer continuously for 5 to 7 days or as long as clinical signs persist, then reduce medication to prevention level 50 grams/ton.

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069254
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054771

2 Turkeys Bacitracin in grams per ton i 4 to 50
ii 200

Growing turkeys: For increased rate of weight gain and improved feed efficiency.
Growing turkeys: As an aid in the control of transmissible enteritis complicated by organisms susceptible to bacitracin methylenedisalicylate.

Feed continuously as sole ration
Feed continuously as the sole ration

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069254
054771

lotter on DSK11XQN23PROD with RULES1

3 Swine Bacitracin in grams per ton i 10 to 30

VerDate Sep<11>2014

Indications for use
Limitations
Growing and finishing swine: For increased rate of weight gain and improved feed efficiency.

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