Seed quality evaluation methods will be discussed during a tour of the I.S.U. Seed Testing Laboratory. The following discussion of seed quality is provided as background or reference information. The importance of quality seed stocks is often taken for granted in U.S. agriculture. High quality seed supplies of the major crops have evolved through the competitive nature of the U.S. seed industry. However, occasionally an emergence, contamination, or seed quality question arises. To help answer these seed quality questions it is useful to understand seed evaluation methods and labeling requirements.