CMS officials have mandated data-sharing under rule-making processes, requiring both providers and health plans to rework their data systems in order to effectively share data on behalf of, and in some cases, directly with, patients/consumers. What are the biggest challenges right now? Industry leaders will parse the requirements, and look at the policy landscape unfolding this year around this important set of issues, as data-sharing offers the promise of true, industry-wide interoperability.