of Patra with its port, and two smaller cities; the city of Volos and the city of Iraklio. Environmental health inspectors from the seven County Departments of Public Health (CDPH) of the greater metropolitan area of Athens and the CDPH of the other four Olympic cities (Thessalonica, Patra, Volos, and Iraklio) were responsible for conducting the environmental health inspections prior to, and during the Olympic and Para Olympic Games.

Workload assessment
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To assess the workload of county departments of public health (CDPH) located in Olympic cities, 19 specific registry forms and 17 standardized inspection forms were created. Public health inspectors identified and registered all premises of public health interest in each Olympic CDPH, in advance, via on-site visits, using the registry forms. The premises targeted were the following: Olympic Venues,hours by six hours, which represented the daily working time for inspectors. In addition, we estimated the required person-time (in months) for the total number of inspections (each month was considered as 22 working days).

Designing the environmental health inspection program
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The Olympic environmental health inspection program had two main components for two time periods (the Pre-Olympic and the Olympic period). The first component referred to the inspections inside the Olympic Venues and the second component to the inspections outside the Olympic Venues. Therefore, the program was modified for each component and time period accordingly. Environmental health inspections inside the Olympic Venues were scheduled to be conducted strictly by certified inspectors. All environmental health inspections included on-site inspections and selective sampling for chemical and microbiological examinations. In order to achieve