Abstract
GeoRadar (GPR) technology is being widely applied worldwide to detect and map underground geographic features. However, Vietnam lacks specific regulations on the scanning process and mapping of these features. This paper introduces a scientific basis for proposing the horizontal and depth accuracy of geographic features, based on the synthesis of international standards, regulations on the application of GeoRadar in detecting underground objects in various countries, experimental research results, and technical specifications of the GPR RIS Himod #4 device. This is an important content in the Basic standard "Survey, measurement, and mapping of underground geographic features within the shallow subsurface - GeoRadar Method" issued by the Institute of Geodesy and Cartography in 2023, aiming to ensure consistency and scientific approach when applying GPR in Vietnam.