The construction CALS standards are now going to spread into RCMO(Regional Construction Management Office) and public organization. The management and maintenance of the CALS standards is required for revising the standard to accept the request from other organizations and disseminating the standards and improving the standard supporting tools. The National Geographic Information Institute in the Ministry of Land, Transport and Maritime Affairs made a public announcement of "the Guideline of CAD drawing for the numeric map modification". So, prompt modification of the national geographic information using as-built drawing is essential and information integration between CAD drawing and nuneric map is necessary. The purpose of this study is to develop the construction CALS standards for the numeric map modification.