In addition to a project-specific technical risk assessment, the regulatory authority may also require an impact assessment. The need for and extent of this requirement may be legally defined and influenced by the perceived potential for adverse effects. Some jurisdictions limit impact assessment to the analysis of effects on the biophysical environment, while others include the social, economic and cultural impacts of the project. This impact-based assessment will focus on potential adverse, neutral or beneficial changes that could result from the project, and may consider other alternatives to meet the stated need.
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