A usability certificate/proof of usability is required of the construction material is used as a construction product within the meaning of the state building regulations (MBPO § 17, paragraph 3).
This proof has to be furnished by means of:
- a general construction supervisory approval or by
- a general appraisal certificate (abP) or by means of
- a consent in individual cases
To provide a better understanding, here a graphic overview of the flowchart on the examination, monitoring and certification process: