On April 18, 2023, the Department of Health & Human Services’ Office of the National Coordinator for Health Information Technology (ONC) published in the Federal Register a proposed rule that would implement aspects of the 21st Century Cures Act and make enhancements to the ONC Health IT Certification Program. The proposed rule would update program certification criteria and implementation specifications, “establish a new baseline version of the United States Core Data for Interoperability” standard, and revise information blocking regulations to promote information sharing. The ONC seeks public comment by 5 p.m. on June 20, 2023.