This blog post from Sam Held for the American Evaluation Association (AEA) looks at the requirements for data sharing under different federal agencies data sharing policies. The common component discussed is that data should be widely and freely available as possible while safeguarding the privacy of participants, and protecting confidential and proprietary data.
"Rad Resource: DMPTool – a website from the University of California system for developing Data Management Plans. The best component of this site is their collection of funder requirements, including those for NIH, NSF, NEH, and some private foundations. This site includes templates for the plans."