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Step 5a

Case-by-Case Reviews

Certain types of air pollutants require a case-by-case study. For example, if a facility emits more than a certain amount of a cancer causing substance, the facility would be required to evaluate different types of control technology and other pollution reduction measures. The department would review this evaluation and choose the best available control technology (BACT) or lowest achievable emission rate (LAER) for that system. The BACT or LAER determination is written up in an analysis and preliminary determination document that accompanies the permit.

Step 5a

Back to eleven-step air permit process overview

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