NEMA carries out Impact Assessment within the folloing ways
Assessing and monitoring all environmental phenomena with a view to making an assessment of any possible changes in environment and their possible impact;
Monitoring operation of any industry, project, policy or activity with a view to determining its immediate and long-term effects on the environment;
Distributing EIA reports to relevant sectors (Ministry/Department);
Making recommendations on approval or mitigating factors relating to environmental assessments;
Following up to ensure that mitigation measures are put in place;
Ensuring compliance with EIA legislation;