The following approval principles are currently available:

Approval principles for systems for treating stormwater run-off containing mineral oil –Part 1: Systems for treating stormwater run-off from traffic areas for subsequent infiltration into ground and groundwater
(Zulassungsgrundsätze Niederschlagswasserbehandlungsanlagen – Teil 1: Anlagen zur dezentralen Behandlung des Abwassers von Kfz-Verkehrsflächen zur anschließenden Versickerung in Boden und Grundwasser)

Approval principles for systems for treating stormwater run-off containing mineral oil – Part 2: Permeable pavements for motor vehicle traffic areas for treatment of stormwater run-off for subsequent infiltration into ground and groundwater (stormwater-treating paving)
(Zulassungsgrundsätze Niederschlagswasserbehandlungsanlagen – Teil 2: Wasserdurchlässige Beläge für Kfz-Verkehrsflächen für die Behandlung des Abwassers zur anschließenden Versickerung in Boden und Grundwasser (Abwasserbehandelnde Flächenbeläge)

Approval principles for systems for treating stormwater run-off containing mineral oil –Part 3: Channel systems for treating wastewater from traffic areas for subsequent infiltration into ground and groundwater
(Zulassungsgrundsätze Niederschlagswasserbehandlungsanlagen – Teil 3: Rinnensysteme zur dezentralen Behandlung des Abwassers von Verkehrsflächen zur anschließenden Versickerung in Boden und Grundwasser)

The approval principles covering this work area are not published, but are made available to the applicants during the procedure.

National procedure

A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.

No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).

Please feel free to use the template below.

• pdf-Datei Application for a national technical approval and/or construction technique permit (4 pages ) Version: 10 April 2024; Application form
• pdf-Datei Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages ) Last updated: 10 April 2024; Application form
• pdf-Datei Guideline: How to provide drawings for national technical approvals and general construction technique permits (5 pages ) Version: July 2017