Sharing well-documented data in an accessible way is important across the UC Berkeley research landscape. It promotes collaboration, facilitates reproducibility, and makes you a more competitive researcher by sustaining your data’s impact. Communicating with stakeholders about data sharing early on in the project lifecycle is a critical step in research data management planning. Other decisions, like selecting appropriate metadata standards, file formats, and repositories may all hinge on the choices you make regarding when, how and with whom you share your data. If your research is supported by a federal agency funding source, you may be required to share your data. The National Science Foundation, National Oceanic and Atmospheric Administration, and National Institute of Health all require that data be shared. If your research is not funded by a federal agency with an established sharing policy, consider contacting an RDM consultant for assistance creating a data sharing plan that meets your needs.