184 MARKET DAIRYING 
If the producer has complied with all the requirements 
he is furnished a certificate by the commission, which 
permits him to use the “certified” label on his products. 
The term ‘‘certified milk” is registered in the United 
States patent office and its use is legally permitted only 
on milk approved by medical milk commissions. 
Uses. Certified milk is now largely used for infants 
and invalids. There is, however, also a rapidly increasing 
Fig. 49. -Truman Sanitary Milk Pail. (Storrs, Conn. Station.) 
use made of this milk by the better informed people who 
realize the unsanitary condition of average market milk. 
Certified milk is the means of saving the lives of thou- 
sands of infants and its increasing use offers splendid 
opportunities for dairymen who are in a position to 
meet the requirements laid down by medical commissions. 
Production and Handling. The general conditions 
called for in the production of “certified” milk are essen- 
tially the same as those stated in the chapter on “sanitary 
milk production.” 
