Meaningful Use - Transforming quality, safety, and efficiency of care from the upgrade to ICD-10 to information exchanges of EHR technology. The Center for Medicare and Medicaid Services (CMS) incentive programs are outlined here.
CMS Meaningful Use Website

HITECH Act - As part of ARRA, the Health Information Technology for Economic and Clinical Health (HITECH) Act was signed into law on February 17th, 2009 to promote the adoption of meaningful use in information technology.
Visit the HHS site for Statutes and Rules