On May 4, 2026, the Colorado Department of Agriculture confirmed a federal shift dairy producers have been waiting two years for: lactating dairy cattle moving across state lines from states classified as Unaffected under the National Milk Testing Strategy (NMTS) no longer require pre-movement HPAI testing.
The change, formalized through updated USDA APHIS guidance issued April 27, softens a federal order in place since April 2024, when HPAI was first confirmed in U.S. dairy cattle.
For producers in qualifying states, this is meaningful relief. Pre-movement testing has been a real cost and logistics drag. But here’s what most coverage is missing:
“Unaffected” is not a permanent label. It’s a posture that has to be continuously earned through surveillance data.
What the Rule Actually Says
- Unaffected states: No pre-movement HPAI testing required.
- Provisionally Unaffected and Affected states: The April 2024 federal order remains fully in place.
- State-level discretion: Destination states may continue to require testing on their own terms.
- Ongoing surveillance: Unaffected status is conditional on continued monthly bulk-tank milk testing.
Federal pre-movement testing is gone for some, but the surveillance regime that proves a state deserves Unaffected status is more important than ever. The CDC’s ongoing H5N1 situation summary underscores why surveillance discipline still matters at the producer level.
The Real Shift: From Mandatory Testing to Conditional Trust
APHIS has effectively moved the dairy industry from a mandatory testing model to a conditional trust model. Trust is granted to states that can demonstrate, on an ongoing basis, that HPAI is not circulating in their herds.
That demonstration runs on data: bulk-tank surveillance, lot-level traceability linking raw milk back to source farms, environmental and biosecurity records, and auditable documentation producible on demand.
Any operator that can’t reliably produce this data is one outbreak, one trace-back failure, one missed sample away from being reclassified to “Provisionally Unaffected,” reinstating the testing burden producers just got relief from.
The right question for dairy leadership is not “How much do we save on testing?” It’s “How well-instrumented are we to keep ourselves in the Unaffected column?”
What We’re Seeing Across the Dairy Operations Landscape
At Folio3 FoodTech, our research and advisory work with dairy producers, cooperatives, and processors across North America, the UK, Australia, and the Middle East has surfaced a few patterns worth sharing.
Trace-back times are the biggest operational gap. In our field assessments of mid-sized processors, the median time to trace a positive bulk-tank sample back to source farms sits in the 18 to 36 hour range. Operations with unit-level lot genealogy and event-based scan capture run closer to 30 to 90 minutes. It is a data architecture problem, and the single most important variable when a state defends its NMTS classification.
Supplier onboarding is where biosecurity programs break down. Cooperatives buying from hundreds of farms typically keep attestations and COAs across email, PDFs, and shared drives. The gap between the program a co-op believes it has and what it can demonstrate to state officials is often six to nine months of remediation.
FSMA 204 is reshaping compliance posture. Operations that built FSMA 204 readiness around lot-level event capture have a head start on NMTS surveillance, because the underlying data model is the same. Treating them separately duplicates effort and creates reconciliation risk.
The Bottom Line
USDA’s April 27 guidance isn’t a deregulation. It’s a delegation. The federal government is trusting state surveillance programs to do the work mandatory testing used to do. States, in turn, are trusting that dairy operators have the data, discipline, and infrastructure to keep that trust earned.
For operators who already invested in traceability, supplier management, and audit-ready compliance, this is a quiet competitive advantage. For the ones who didn’t, it’s a countdown.
