CMS has published a notice announcing that it has changed the name of the Advisory Panel on Ambulatory Payment Classification Groups (APCs) to the Advisory Panel on Hospital Outpatient Payment (HOP). The change is intended to reflect the broadening of the panel’s work to include supervision of outpatient hospital services, in addition to its traditional function of advising the Secretary on the clinical integrity of the APC groups and their associated weights. CMS also is changing the panel’s membership to include critical access hospitals for deliberations related to supervision of outpatient hospital services. CMS also is increasing the number of members on the panel from 15 to 19, and it is soliciting six nominations for individuals to serve on the HOP in 2012. Nominations will be accepted until December 27, 2011.