Proposals can be based on a 12-months schedule, or, for Multi-year Projects, on a 24- or 36-months schedule. The allocation of awarded resources is made for 1 year at a time with provisional allocations awarded for the 2nd and 3rd year.Applications for Project Access must use codes that have been previously tested and that demonstrate high scalability and optimisation to multi-core architectures or that demonstrate a requirement for ensemble simulations that need a very large amount of CPU overall. More information you can find at http://www.prace-ri.eu/prace-project-access/.