These guidelines should be the framework reference for geological mapping and description of observations, as well as their presentation as analog maps, digital data sets, legends and Explanatory Notes. Although federal states are responsible for the compilation and publication of large scale geological maps, their Geological Surveys are concerned that the geological mapping should be prepared according to procedures that are as uniform as possible. At the same time, geological mapping techniques particular to a State or region remain unaffected. These guidelines should provide the necessary regulation of those working procedures, for which a standard and uniform application is both possible and scientifically acceptable throughout the Federal Republic. It is anticipated that these "GUIDELINES FOR THE COMPILATION OF GEOLOGICAL MAPS" will promote objective mapping procedures, and provide guidance in geological mapping to students, recently qualified geologists, as well as geologists working outside of the State Geological Surveys. These guidelines will have achieved their purpose if they are applied by all mapping geologists, and thereby contribute to a standard application of basic mapping principles.