The Inspection Body CKBIS exists independantly within CERSS according to annex II of the CSM regulation (EU 402/2013 and standard EN ISO/IEC 17020). The German Federal Railway Authority has accredited CKBIS as an Assessment Body by certificate No 011 and incorporated to the register of assessment bodies. An Assessment Body shall carry out an independent assessment of the suitability of both the application of the risk management process as set out in annex I of CSM regulation and its results.

The Inspection Body CKBIS operates inspections of systems and components in the sector of railway signalling as well as other technical systems with safety assignments. The scope of the inspection mainly covers development, proof of concept, safety cases, verification and validation, certification and appraisals of damage.