102 
Daten + Fakten 
International Hydro- 
graphic Organization 
(IHO, Internationale 
Hydrographische Or 
ganisation) 
International Maritime 
Organization 
(IMO, Internationale 
Seeschifffahrts-Orga 
nisation) 
Prof. Dr. Peter Ehlers 
Commission on Promulgation of Radio Navigational Warnings: Axel Nauendorf 
Committee on Hydrographie Requirements for Information Systems (CHRIS): 
Dr. Mathias Jonas (Vice-Chair), Johannes Melles 
Data Quality Working Group: Horst Hecht 
Colours and Symbols Maintenance Working Group: Jochen Ritterbusch, 
Dr. Mathias Jonas (Vors.) 
Capacity Building Committee (CBC): Thomas Dehling 
Standards for Hydrographic Surveys Working Group (S-44): Bernd Vahrenkamp 
Standardization of Nautical Publications Working Group (SNPWG): 
Jens Schrôder-Fürstenberg 
Transfer Standard Maintenance and Applications Development Working Group 
(TSMADWG): Johannes Melles 
Strategic Planning Working Group: Prof. Dr. Peter Ehlers 
Committee „Worldwide Electronic Navigational Chart Data Base“ (WEND): 
Horst Hecht 
WEND Task Group: Horst Hecht (Vors.) 
Finance Committee: Ingelore Hering 
Group of Experts on IHO Financial Issues: Ingelore Hering 
Experts in Maritime Boundary Delimination: Thomas Dehling 
Legal Advisory Committee: Christian Dahlke 
Chart Standardization & Paper Chart Working Group (CSPCWG): Sylvia Spohn 
Baltic Sea Hydrographic Commission (BSHC): Prof. Dr. Peter Ehlers, Horst Hecht 
Baltic Sea Chart Datum Working Group (CDWG): Dr. Wilfried Ellmer 
Baltic Sea International Chart Committee (BSICC): Sylvia Spohn 
WG for Monitoring the Implementation of the HELCOM Harmonised Re-survey 
Plan: Thomas Dehling 
Baltic Sea ENC Harmonisation Working Group (BSEHWG): Holger Fasterding 
North Sea Hydrographic Commission (NSHC): Prof. Dr. Peter Ehlers (Vors.), 
Horst Hecht 
NSHC Resurvey Working Group: Thomas Dehling (Vors.), Bernd Vahrenkamp 
Mediterranian and Black Sea Hydrographic Commission (MBSHC): 
Dr. Mathias Jonas 
Northern Indian Ocean Hydrographic Commission (NIOHC): Horst Hecht 
Marine Environment Protection Committee: Rolf v. Ostrowski, Dr. Manfred Rolke 
Maritime Safety Committee: Christoph Brockmann, Ulf Kaspera 
Sub-committee on Radiocommunications and Search and Rescue: 
Ralf-Dieter PreuB, Andreas Braun 
Sub-committee on Safety of Navigation: Ingolf Eckert, Ralf-Dieter PreuB, 
Jochen Ritterbusch, Dr. Mathias Jonas 
ECDIS Correspondence Working Group: Jochen Ritterbusch 
E-NAV Correspondence Working Group: Jochen Ritterbusch 
Sub-committee on Ship Design and Equipment: Ralf-Dieter PreuB 
Sub-committee on Standards of Training and Watchkeeping: Artur Roth, 
James MacDonald 
Sub-committee on Flag State Implementation: Grit Tüngler 
IMO Drafting Group for Display Performance Standards: Hans-Karl v. Arnim, 
Joachim Behnke 
Working Group Long Range Identification and Tracking Systems: 
Ralf-Dieter PreuB, Christoph Brockmann