You may need to budget funding in your grant proposal for data curation and storage for data that you are mandated to share. The following links can help you determine a budget for when you are applying for a grant to make sure your data is in compliance. For more information you can learn more from the National Academies of Sciences, Engineering, and Medicine's "Forecasting Costs for Preserving, Archiving, and Promoting Access to Biomedical Data" study and the American Research Libraries "Making Research Data Publicly Accessible" for ideas about needs and costs.