The Coupled Model Intercomparision Project (CMIP) encourages all ongoing and new Model Intercomparison Project (MIP) (CMIP6-endorsed MIPs and others) leads to register information about their MIP through a MIP registration form, both to reduce duplication of effort across MIPs and modelling centres and to foster collaboration. MIP registration will also allow the CMIP panel to obtain useful information for the design of CMIP7 and provide the climate science community with information on activities being carried out at the global level. MIP information will be made available publicly on the CMIP website in due course. There is no deadline for registration, but early engagement is encouraged.