U.S.No.1  parsnips must be well trimmed, fairly well formed, fairly smooth, fairly clean, fairly firm, free of woodiness, soft rot, or wet break down.  There should be no discoloration, bruises, cuts, rodents, growth cracks, pithiness, disease, insects, or damage by  mechanical means. Unless otherwise stated the diameter of each of each parsnip shall not be less than 1 1/2 inches.  the maximum diameter of the parsnips in any lot may be specified in terms of inches and quarter inches in accordance with the facts of the product.