To provide certainty over their longevity, offsets should be supported by legal mechanisms that secure site tenure and financial assurances to ensure that the resources will be available to conserve biodiversity for the life of the project. Land acquisition for biodiversity offsets has proved difficult in a number of jurisdictions where land scarcity is a significant issue (e.g. England, the Netherlands and Switzerland) and in developing countries where development and food security priorities are prohibitive so securing offsets from existing landowners is often favoured (Morandeau and Vilaysack, 2012). In the BioBanking programme in New South Wales, Australia and the Native Vegetation Regulations in Victoria, Australia, offsets are legally secured by amending the land title and recording land-use restrictions in the public Land Registry.