This page contains Pennsylvania’s Metropolitan Statistical Area (MSA) designations in list and map format. The MSA is a statistical standard classification designated and defined by the Federal Office of Management and Budget (OMB). Pennsylvania uses MSA designations as defined in OMB Bulletin No. 99-04 in the rate setting process for nonpublic nursing facilities. See § 1187.94 (relating to peer grouping for price setting). In addition, MSAs are used in defining a bed transfer request. See § 1187.162 (relating to definitions).