Canary seed — the small, hull-covered grain of Phalaris canariensis — is traded primarily as a premium bird feed ingredient, though food-grade varieties have gained regulatory acceptance in some markets. USDA APHIS phytosanitary requirements govern the importation of raw seed, and shipments must be accompanied by a phytosanitary certificate from the country of origin to prevent the introduction of seed-borne pests or diseases. Buyers sourcing canary seed should confirm that lots meet moisture and purity specifications, as contamination with weed seeds can trigger APHIS hold or refusal at the port.

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