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What goes wrong

The test expired

Updated

On this page9
Nothing visible changes. A date passes and the stock stops being shippable.

How it happens

A lot is tested, packed and partly sold, and the remainder sits. Five calendar months from the end of the test month go by, and what is left cannot be transported or delivered for transportation in interstate commerce until it is retested.

The seed is usually fine

Which is what makes this frustrating and also what makes it easy to ignore. The rule is about the currency of the evidence, not about the condition of the seed, and a retest often confirms the original figure.

The label is the problem, twice

The printed date is now outside the window, so even a fresh test means relabeling or overlabeling. That is a real cost, and it is the cost the twenty-four month window exists to avoid.

Over-packing is the root cause

Packing a year of stock against a five-month window guarantees this. Matching batch size to the window, or sealing to earn the longer one, are the two honest answers.

Sealing changes the arithmetic, not the rule

Twenty-four months from a test completed prior to packaging covers two seasons. That makes larger batches rational, and it is why the package decision and the production plan are the same decision.

Intrastate sales are a separate question

The federal window attaches to interstate commerce. State seed laws run alongside it with their own requirements, so a local sale is not automatically unaffected and is not automatically covered either.

Track it per lot, in a calendar

Lot, crop, test month, window end, and whether it is sealed. Four columns, and it is the only control that works, because nothing in the warehouse signals the date.

The cheapest fix is a smaller batch

Packing to the window rather than to the pallet costs a little more per unit and removes this failure entirely. It is the answer for anyone without an induction sealer, and it needs no capital.

References

7 CFR 201.30a, Date of test, which allows no more than 5 calendar months between the last day of the month the germination test was completed and the date of transportation in interstate commerce, except for seed in hermetically sealed containers, where it is 24 calendar months from a test completed prior to packaging. law.cornell.edu
7 U.S.C. 1571, the Federal Seed Act’s prohibited acts. Subsection (b) sets the label content for vegetable seed by container weight and by whether germination meets the established standard; subsection (c) sets the five-month test window and lets the Secretary designate a longer period for seed "packaged in such container materials and under such other conditions" as will maintain viability. law.cornell.edu
Written from federal statute and regulation, not from a seed bench. Every state also runs its own seed law, and the Federal Seed Act reaches interstate commerce, so a local sale can answer to a different set of requirements. Nothing here certifies a package as hermetically sealed; that is a question about the package and the sealing process.