The Centers for Medicare and Medicaid Services (CMS) and The Joint Commission work together to establish core quality measures that hospitals must report on. In 2003, they aligned their measures to reduce duplication of reporting efforts. Some key measures they both require relate to timely treatment of acute myocardial infarction (AMI) patients, such as administering aspirin or beta blockers within certain timeframes. Compliance with these evidence-based quality measures impacts accreditation and reimbursement.