Do you want to erect, operate or modify an installation that does not require a permit and is part of the operating area or is part of an operating area? If so, you will require a permit if the distance falls below the appropriate safety distance or a significant increase in risk is triggered.

Does the competent authority determine during the review of your previous notification of an accident-relevant construction or modification that your project will trigger the immission law requirements or a significant increase in risk? Then you also need a permit.