DEPARTMENT OF AGRICULTURE
FOOD AND DAIRY DIVISION
REGULATION NO. 552. UNCLASSIFIED POTATOES
(By authority conferred on the commission of agriculture by section 8 of Act No. 220 of
the Public Acts of 1929, as amended, section 1 of Act No. 13 of the Public Acts of
1921, as amended, and section 178 of Act No. 380 of the Public Acts of 1965, being
SS290.158, 285.1, and 16.278 of the Michigan Compiled Laws)
R 285.552.1 Definitions.
Rule 1. As used in these rules:
(a) "Soft rot or wet breakdown" means a soft, mushy or leaky condition of the tissue of
potatoes such as slimy soft rot, leak or wet breakdown following freezing injury.
(b) "Seriously damaged" means that the removal of sunburn or greening would cause a
loss of more than 10% of the total weight of the potato.
History: 1979 AC.
R 285.552.2 Labeling; containers; standards.
Rule 2. A person, firm, or corporation packing ungraded potatoes for sale for table
use shall package them as follows:
(a) A container shall be labeled "unclassified."
(b) The word "unclassified" shall be in vivid red (NBS color no. 11) letters on a
brilliant yellow (NBS color no. 83) background on the top 2/3 of the bag. The national
bureau of standards centroid color charts, standard sample no. 2106, will be used for
color reference. Color charts are available for viewing at Michigan state university.
The lettering shall be in the English language, conspicuous as to style of letters and in
contrast to color of background. The yellow background shall extend beyond the
lettering, top, bottom, and sides, to a point 1/2 the size of the letters in the word
(c) The word "unclassified" shall be as large as the largest lettered word on the
package and in no case less than 1 inch in height.
(d) Unclassified potatoes shall be packaged in brown paper or clear plastic bags with
only the information specified by Act No. 220 of the Public Acts of 1929 for
unclassified potatoes appearing on the bag.
(e) A lot designated as unclassified shall contain not more than 2%, by weight, of the
potatoes affected by soft rot or wet breakdown.
(f) A lot designated as unclassified shall contain not more than 10%, by weight, of
potatoes which are seriously damaged by sunburn or greening.
History: 1979 AC.