Evaluating a BAT policy

To evaluate your BAT policy, your country could:

  • Conduct a qualitative evaluation by gathering data on different stakeholders’ views on the environmental, economic and human health impacts of the policy, e.g. through a survey.

You can evaluate the effectiveness of your national BAT policy by assessing the policy’s impact on emission trends (changes in concentrations or relative proportions of key indicator pollutants in environmental media), mass or percentage of industrial emissions, assessed against the policy’s defined objectives and a business as usual scenario.

You can quantify the impact of your BAT policy after its implementation (ex post), or ex ante that aims to predict the quantified impact of a policy prior to its implementation. 


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