7 CFR §361.9

1. (a)Each person importing agricultural seed or vegetable seed under this part must maintain a complete record, including copies of the declaration and labeling required under this part and a sample of seed, for each lot of seed imported. Except for the seed sample, which may be discarded 1 year after the entire lot represented by the sample has been disposed of by the person who imported the seed, the records must be maintained for 3 years following the importation.
2. (b)Each sample of vegetable seed and each sample of agricultural seed must be at least equal in weight to the sample size prescribed for noxious weed seed examination in table 1 of § 361.5.
3. (c)An APHIS inspector shall, during normal business hours, be allowed to inspect and copy the records.