(1) A dairy farmer is to pay a licence fee in respect of each month, or part of a month, during which the dairy farmers licence is in force.(2) The licence fee for a month or part of a month is the amount calculated at the rate of 0.00025 fee units for each litre of milk sold by the dairy farmer to a processor or manufacturer during that month or part of the month.(3) The licence fee is to be collected and paid to the Authority, on behalf of the dairy farmer, by the purchaser of the milk.(4) The licence fee in respect of a month or part of a month is to be paid within 14 days after the end of that month.