In Lazio region, in which Rome is located and 5,300,000 inhabitants live, an Information System has been started since 1999 to collect personal and clinical data of the admissions to Emergency Departments. The present work describes the fundamental aspects of the Region refund system for the emergency services made by the Emergency Departments. The article shows both the features of the information flow, on which the financial evaluation is based, and the fundamental steps of the regional deliberations for the years 2000 and 2001. We introduce the refund evaluations by 13 local health authorities (ASL) constituting the regional health service, for the years 2000-2001, and we point out the major problems related to calculation procedures. The total amount of emergency admissions in the region is 1,973,930 (year 2000) and 2,188,885 (year 2001). The evaluated charge for the region is 145,569,340 Euro (year 2000), and 170,004,718 Euro (year 2001).