Urban Wastewater Treatment Directive

“KARL” stands for “Kommunale AbwasserRichtLinie” or in English Urban Wastewater Treatment Directive.

By the way, this directive is or 30 years old and was just updated. The EU Parliament decided this month on the update after a long discussion last year with the EU Commission.

Source: EU-Staaten und Parlament einig bei künftiger Behandlung von kommunalem Abwasser – Europäische Kommission (europa.eu)

Photo: https://www.pexels.com/de-de/foto/landschaft-industrie-herbst-umwelt-11452356/