You can notify evaporative cooling systems, cooling towers and wet separators online in accordance with § 13 of the 42nd Ordinance on the Implementation of the Federal Immission Control Act (Ordinance on Evaporative Cooling Systems, Wet Separators and Cooling Towers - 42nd BImSchV).
Editorial responsibility Bayerisches Staatsministerium für Umwelt und Verbraucherschutz