Regulations last checked for updates: May 02, 2025

Title 21 - Food and Drugs last revised: Apr 28, 2025
All TitlesTitle 21Chapter IPart 556Subpart B - Subpart B—Specific Tolerances for Residues of Approved and Conditionally Approved New Animal Drugs
View all text of Subpart B [§ 556.34 - § 556.770]
§ 556.660 - Sulfamerazine.

(a) [Reserved]

(b) Tolerances. The tolerance for sulfamerazine is:

(1) Trout. Edible tissues: Zero.

(2) [Reserved]

(c) Related conditions of use. See §§ 520.2218 and 558.582 of this chapter.

[84 FR 32993, July 11, 2019, as amended at 85 FR 18121, Apr. 1, 2020]
authority: 21 U.S.C. 342,360b,371
source: 84 FR 32993, July 11, 2019, unless otherwise noted.
cite as: 21 CFR 556.660
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