21 CFR § 529.1660Chapter I

§ 529.1660 Oxytetracycline.

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Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.

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Specifications.(a) (1) Each gram of powder contains 366 milligrams (mg) oxytetracycline hydrochloride.

(2) Each gram of powder contains 753 mg oxytetracycline hydrochloride.

Sponsors.(b) See sponsors in § 510.600(c) of this chapter for use of products described in paragraph (a) of this section as in paragraph (d) of this section.

(1) Nos. 054771 and 061133 for use of product in paragraph (a)(1) of this section.

(2) Nos. 054771, 061133, and 069254 for use of product described in paragraph (a)(2) of this section.

Related tolerances. See(c) § 556.500 of this chapter.

Conditions of use in finfishAmount.(d) —(1) Immerse fish in a solution containing 200 to 700 mg oxytetracycline hydrochloride (buffered) per liter of water for 2 to 6 hours.

Indications for use.(2) For skeletal marking of finfish fry and fingerlings.

Limitations.(3) Federal law restricts this drug to use by or on the order of a licensed veterinarian.

[69 FR 6557, Feb. 11, 2004, as amended at 69 FR 61999, Oct. 22, 2004; 70 FR 41140, July 18, 2005; 72 FR 26289, May 9, 2007; 76 FR 17026, Mar. 28, 2011; 79 FR 10973, Feb. 27, 2014; 81 FR 22524, Apr. 18, 2016; 81 FR 94991, Dec. 27, 2016; 84 FR 8974, Mar. 13, 2019]

eCFR data current as of: June 10, 2026

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.