FDA Updates Rules for Medicated Animal Feed Stability Tests
Published Date: 4/16/2026
Notice
Summary
The FDA just released a draft update on how to test the stability of medicated premixes—those are the special mixes added to animal feed to keep pets and farm animals healthy. This update affects companies making these products by giving clearer, improved testing rules to make sure the mixes stay effective. If you’re in the business, get your comments in by June 15, 2026, or risk missing out on shaping the final rules!
Free Policy Watch
New rules are filed every week. Most people never see them.
Pick a topic. PRIA watches every federal rule and tells you when one hits your household.
Pick a topic to get started
Analyzed Economic Effects
5 provisions identified: 4 benefits, 0 costs, 1 mixed.
Updated Stability Testing Rules
If you make medicated premixes for animal feed, the FDA released a draft revision that contains updated recommendations for how to test the stability of those premixes and how to show they stay stable in the intended medicated feed. This is a draft guidance (VICH GL8(R1)) the FDA is proposing for industry use.
Opportunity to Comment by June 15, 2026
If you or your company want to influence the final guidance, you must submit comments by June 15, 2026 for the Agency to consider them before it begins work on the final version. You can submit comments electronically at https://www.regulations.gov or as written/paper submissions to the Dockets Management Staff.
Draft Guidance Is Non‑Binding
The draft guidance represents the FDA's current thinking but does not establish any rights and is not binding on FDA or the public. You may use an alternative approach if it satisfies the applicable statutes and regulations.
No New Paperwork Collections
The FDA states the draft guidance contains no new collection of information, but it references previously approved information collections under OMB control numbers 0910-0032 and 0910-0117. This means the draft itself does not add new paperwork requirements.
FDA Will Consider Cost Comments
As FDA develops the final guidance, it will consider comments on costs or cost savings the guidance may generate, consistent with Executive Order 14192. Stakeholders can submit cost-related comments for FDA to review during finalization.
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Take It Personal
Get Your Personalized Policy View
Start a Free Government Policy Watch to see how policy affects your household, then upgrade to PRIA Full Coverage for year-round monitoring.
Already have an account? Sign in