The document discusses guidelines for properly sampling seed lots to obtain representative samples for testing. It explains that sampling involves taking small portions from different areas of a seed lot and combining them. The size of the submitted sample for testing is much smaller than the total lot, so care must be taken to ensure it accurately represents the lot. Sampling methods are provided for seeds in bags or bulk, with the number of primary samples ranging from 5 to over 100 depending on the total quantity. Various tools for sampling seeds at different stages are also outlined.