I want to start conversation about this huge news in Health IT. This is long awaited move towards information sharing. This new proposed rules makes sharing is the default and blocking is the exceptions. Essentially API's for accessing EHR records using HL7.
Sources:
https://www.cms.gov/Center/Special-Topic/Interoperability-Center.html
https://www.healthexec.com/topics/health-it/cms-onc-propose-new-interoperability-rules
https://www.federalregister.gov/documents/2019/03/04/2019-02224/21st-century-cures-act-interoperability-information-blocking-and-the-onc-health-it-certification