U.S. Code
Regulations
Constitution
Sort by Rank
Titles Ascending
Titles Descending
10 per page
25 Result/page
50 Result/page
x
Search
Search guide
U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
All Titles
Title 21
Chapter I
Part 558
Subpart A - Subpart A—General Provisions
§ 558.3 - Definitions and general considerations applicable to this part.
§ 558.4 - Requirement of a medicated feed mill license.
§ 558.5 - Requirements for liquid medicated feed.
§ 558.6 - Veterinary feed directive drugs.
Download the GovRegs app!
