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 "unclassified."  
(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.  
Page 1  
Courtesy of Michigan Administrative Rules  
R 285.552.3 Exemption.  
Rule 3. These rules do not apply to a grower or his employees in the sale of potatoes  
grown by himself when made direct to the consumer.  
History: 1979 AC.  
Page 2  
Courtesy of Michigan Administrative Rules  
;