Generally applicable approval and testing principles are not available.

In an initial meeting, applicants will receive comprehensive information on the approval and testing principles applicable to the relevant kit.

Companies that execute strengthening measures in accordance with national technical approvals/general construction technique permits granted under Z-31.10-xx need a valid proof of qualification in accordance with the 'Guideline for the proof of qualification for strengthening concrete structures with textile-reinforced concrete for kits covered by a national technical approval and/or general construction technique permit' (Richtlinie für den Eignungsnachweis zum Verstärken von Betonbauteilen mit Textilbeton für Bausätze mit allgemeiner bauaufsichtlicher Zulassung und allgemeiner Bauartgenehmigung). The Directory of recognised testing laboratories, inspection and certification bodies (PÜZ-Verzeichnis), Part 6, no. 11 provides a list of bodies recognised for issuing such proof of qualification for executing companies of strengthening measures with textile-reinforced concrete in accordance with the above-mentioned Guideline.

Please note that in addition to the obligation for the executing company to monitor the execution in accordance with the national technical approvals/general construction technique permits granted under Z-31.10-xx, involvement of a recognised inspection body, as specified in the Directory of recognised testing laboratories, inspection and certification bodies, Part 5, no. 14, is required.