The NRM2018 PET Grand Challenge dataset has now been fully released. This dataset aims to provide a normative tool to assess the performance and consistency of PET modelling approaches on the same data for which the ground truth is known. Specifically, the challenge aimed at evaluating the performances of different PET analysis tools to identify areas and magnitude of receptor binding changes in a PET radioligand neurotransmission study. Simulated PET data and reference values can be freely downloaded from NITRC portal. Full details on the type of data and simulation procedure are also reported.