The NSF strengthened its data sharing policy in January 18, 2011, when it began requiring all grant proposals to include a two-page data management plan. Guidelines are available online. Specific NSF directorates, offices, divisions, programs, or other units may impose additional data management requirements.
The NIH Public Access Policy ensures that the public has access to the published results of NIH funded research. It requires scientists to submit final peer-reviewed journal manuscripts that arise from NIH funds to the digital archive PubMed Central upon acceptance for publication. To help advance science and improve human health, the Policy requires that these papers are accessible to the public on PubMed Central no later than 12 months after publication.
For more information on how to comply with the NIH Public Access policy, please see the NIH Public Access Policy research guide.
NIH has announced its 2023 Policy for Data Management and Sharing. This policy will require the development of a data management and sharing plan which will be evaluated as part of the grant and included as a term and condition with which to comply in order to receive funding. The NIH has provided supplemental guidelines outlining elements of a data management and sharing plan. Furthermore, as data sharing will be a significant focus of the policy the NIH has released guidelines on selecting a data repository for depositing data, along with guidelines on allowable costs.
For more information on the NIH Data Management and Sharing Policy, check out their dedicated website on data sharing and the emerging guidelines.