CFR › Title 21 › Part 558 › §558.29521 CFR §558.295Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Specifications. Type A medicated article containing iodinated casein.(b)Sponsor. See No. 017762 in § 510.600(c) of this chapter.(c)Conditions of use—(1) Ducks—(2)Dairy cows—