Occupancy could be recognised as evidence of land ownership and informal evidence accepted, such as tax receipts combined with testimony by neighbours. Land registration enhances land tenure security, but it often implies the transformation of ulayat rights into individual rights which affects the fabric of social relationships. Land registration should not disregard the great diversity of local land rights and tenure arrangements that still exist. For instance, overpopulated Java, where customary land rights have almost completely disappeared and land rights have become strongly individual, requires different land rights provisions than other regions.