New producers:

Quoted from DFA Today, 8/27/18 email.....

"Dairy farmers who were not marketing milk in those years can establish production history using one of the following methods:

• Available full month’s marketed milk production for the calendar year the operation first began to market milk, calculated to a yearly amount using a national index based on seasons 
• Estimated actual marketed milk production based on the actual herd size of the dairy operation relative to the national rolling herd average"