The regulation of milk for liquid consumption is a matter for the National Milk Agency, which was established under the Milk (Regulation of Supply) Act, 1994. This legislation provides that pasteurised milk produced in the State cannot be sold for liquid consumption unless it has been produced under a contract registered with the National Milk Agency. It also provides, inter alia, that the contract must be for at least 12 months and, in the opinion of the Agency, provides adequate compensation to the producer taking into account, in particular, in relation to the winter months, the economic costs of production of raw milk all the year round.