European Environmental Agency (2016, 2017) is developing TOUERM (Tourism and Environment Reporting Mechanism) Indicators  (also look at Report)

25 indicators were identified and “prioritized” according: data availability, consolidated methodology, processing requirements feasible in the frame of the project, policy relevance, clarity and message) and grouped within 5 groups: 1. Driver indicators, 2. Pressure indicators, 3.State indicators, 4. Impact indicators, and 5. Response indicators.

Response indicators are:

R1-Percentage of destination that is designated for protection

R2 –Tourism enterprises using environmental certification/labeling (EASD Note: among them is GREEN KEY)

R3 – Blue Flags for beaches and marinas

Until now, Serbia have 1 beach with Blue Flag and 2 hotels with Green key.