参议院账单231旨在允许微生物饲养员（定义为50,000岁以下的年产量），每年自行分销高达2,500桶。该法案还提供：书面分配协议;no cause terminations for brewers whose products represent five percent or less of a distributor’s gross annual sales, provided forty-five days’ notice of termination has been given and the payment to the distributor of an amount equal to 300% of the distributor’s gross profits from the sale of the brewer’s products in the twelve months immediately preceding the delivery of the notice of termination has been made.