304 PRINCIPLES AND PRACTICE OF MILK HYGIENE 
The first rules designed for this purpose were those contained 
in an agreement entered into by a medical milk commission and 
the dairyman concerned.” 
The rules contained in the original agreement mentioned rep- 
resented the essential requirements for the production of certified 
milk. Following this precedent, other commissions were organ- 
ized, which, in 1906, became federated into a national associa- 
tion known as the American Association of Medical Milk Com- 
missions. 
A fundamental object of this Association was to bring about 
the uniformity of standards and their perfection. This result 
has been reached by the adoption from time to time of definite 
standards relating to the veterinary inspection of herds and 
farms, the medical inspection of employees handling the milk, 
and the bacteriological and chemical examinations as to quality 
and purity. The requirements with respect to these four topics 
have been previously reported upon by committees and adopted 
by the Association, and at its last annual meeting provision 
was made for their further revision and amplification. 
ORGANIZATION OF MEDICAL MILK COMMISSIONS 
The Medical Milk Commission is appointed by a representa- 
tive medical society, and acts under its auspices and for it, to 
encourage the production of milk of the highest possible stand- 
ards of purity. No commission should be considered as certi- 
fying milk that does not conform to the standards adopted from 
time to time by the Association of Medical Milk Commissions. 
The commission should include at least five members or a num- 
ber sufficient to become responsible for and to carry on the follow- 
ing divisions of work ; (a) The hygiene of the dairy, as it relates 
to the production and distribution of the milk; (b) the veteri- 
nary supervision of the herd; (c) the medical supervision of the 
employees; (d) the chemical and bacteriological examinations 
of the milk. 
2 Bul. 56, Hygienic Laboratory, Public Health and Marine 
Hospital Service, p. 615. 
