The Regulations make provision about the terms that must be included in a milk purchase contract, including the following: • The format and duration of the milk purchase contract being either of a fixed duration or evergreen (as defined.) • The permitted pricing modelling, this includes: Fixed pricing contracts, which may include more than one fixed price within the duration of the contract. Variable price contracts, where it imposes a requirement that the milk purchase contract must set out the factors to which the business purchaser must have due regard when determining the price and may relate to different periods within the duration of the contract.