21 CFR §558.128

1. (a)Specifications. Type A medicated articles containing either chlortetracycline calcium complex equivalent to chlortetracycline hydrochloride, or for products intended for use in milk replacer, chlortetracycline hydrochloride.
2. (b)Sponsors. See sponsors in § 510.600(c) of this chapter as follows:
   1. (1)No. 054771: 50, 70, 80, 90, or 100 grams per pound (g/lb) Type A medicated article.
   2. (2)No. 066104: 10, 20, 30, 50, 70, or 100 g/lb of Type A medicated article.
   3. (3)No. 069254: 50, 90, or 100 g/lb of Type A medicated article.
3. (c)Related tolerances. See § 556.150 of this chapter.
4. (d)Special considerations.
   1. (1)Federal law restricts medicated feed containing this veterinary feed directive (VFD) drug to use by or on the order of a licensed veterinarian. See § 558.6 for additional requirements.
   2. (2)The expiration date of VFDs for chlortetracycline medicated feeds must not exceed 6 months from the date of issuance. VFDs for chlortetracycline shall not be refilled.
   3. (3)In milk replacers or starter feed; include on labeling the warning: “A withdrawal period has not been established for this product in preruminating calves. Do not use in calves to be processed for veal.”
   4. (4)Manufacture for use in free-choice feeds as in paragraph (e)(4)(vi) of this section must conform to § 510.455 of this chapter.
   5. (5)When manufactured for use as in paragraph (e)(5)(iii) of this section, include on labeling the warning: “Psittacosis, avian chlamydiosis, or ornithosis is a reportable communicable disease, transmissible between wild and domestic birds, other animals, and man. Contact appropriate public health and regulatory officials.”
5. (e)Conditions of use—(1) Chickens. It is used as follows:
   1. (2)Turkeys. It is used as follows:
   2. (3)Swine. It is used as follows:
   3. (4)Cattle. It is used as follows:
   4. (5)Minor species. It is used as follows:
   5. (6)It is used as a free-choice, loose mineral Type C feed as follows:
      1. (i)Specifications.
      2. (ii)Amount. 6,000 grams per ton.
      3. (iii)Indications for use. Beef and nonlactating dairy cattle: As an aid in the control of active infection of anaplasmosis caused by Anaplasma marginale susceptible to chlortetracycline.
      4. (iv)Limitations. Feed continuously on a free-choice basis at a rate of 0.5 to 2.0 mg chlortetracycline per pound of body weight per day.
      5. (v)Sponsors. See Nos. 054771 and 069254 in § 510.600(c) of this chapter.