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Administrative provision

AbwVwV HE 20-24

Twentieth to twentyfourth general administrative regulations on the minimum requirements for the discharge of sewage into waters
Edition 1982-06-29

Administrative provision

AbwVV NW 1982

Administrative regulations on minimum requirements on the discharge of sewage into waters
Edition 1982-07-07

Administrative provision

ÜbwAnlBergbRL TH

Richtlinie für überwachungsbedürftige Anlagen in den der Bergaufsicht unterliegenden Betrieben
Edition 1997-01-02

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