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The below listed Dr. Graband & Partner GmbH employees are recognized as experts by Eisenbahn-Bundesamt (Federal Railway Authority).
The below listed Dr. Graband & Partner GmbH employees are authorized persons accepting implementation planning of Deutsche Bahn AG (German Railways).
Dipl.-Ing. Joachim Haßelmann Authorized Person Accepting Implementation Planning according to VV BAU
Dipl.-Ing. Daniela Henneberg Authorized Person Accepting Implementation Planning according to VV BAU
Dipl.-Ing. Reinhard Klemm Authorized Person Accepting Implementation Planning according to VV BAU-STE
Dipl.-Wirt.-Ing. Marc Zachries Authorized Person Accepting Implementation Planning according to VV BAU-STE
   
The below listed Dr. Graband & Partner GmbH employees are recognized as competent experts by regional supervisory authorities.
Dipl.-Ing. Klaus-Dieter Sievers and Dipl.-Ing. Wolf-Eckhard Scholz Senate Department for Urban Development in Berlin: recognitions of BOStrab (German Ordinance on the Construction and Operation of Rail Systems for Light-Rail Transit) as qualified persons for the assessment of safety installations
Dipl.-Ing. Klaus-Dieter Sievers Free Hanseatic City of Bremen: Recognition as qualified person according to BOStrab for the assessment of railway signaling
Dipl.-Ing. Klaus-Dieter Sievers and Frank Strobelt Düsseldorf district government: recognitions as qualified persons for safety installations within the scope of BOStrab
Some Dr. Graband & Partner GmbH employees are certified by third parties.
Several employees TÜV Akademie GmbH Unternehmensgruppe TÜV Rheinland/Berlin-Brandenburg (Technical Supervisory Association (TÜV) Academy Company Group TÜV Rhineland/Berlin-Brandenburg): Certifications as safety and health protection coordinators on construction sites in accordance with directive 92/57/EWG and the construction site ordinance
Dipl.-Ing. Marcus Intze Pilz GmbH & Co. KG: TÜV-NORD-Certification as CMSE® - Certified Machinery Safety Expert