Sec. 91.067. GRADE NO. 3. Grade No. 3 onions do not meet the requirements of a higher grade but are: (1) sound; (2) free from doubles, splits, bottle necks, and seed stems; (3) practically free from damage caused by moisture, sunburn, cuts, disease, insects, or mechanical devices; and (4) at least one inch in diameter. Acts 1981, 67th Leg., p. 1225, ch. 388, Sec. 1, eff. Sept. 1, 1981.