Page 65 - 2023 OUTLINE OF THE MINISTRY OF THE INTERIOR REPUBLIC OF CHINA

2023 OUTLINE OF THE MINISTRY OF THE INTERIOR

IX. National Land Surveys

1. Cadastral Re-survey

In order to clarify cadasters and to prevent disputes over boundaries, the MOI, in collaboration
with local governments, continued to implement a renewal survey of cadastral maps in Taiwan from
1973 to 2022, with a total of 185,852 plots of land covering an area of 26,135 hectares during 2022.

2. Management of Surveying Services

The management of the survey industry is regulated by the Land Surveying and Mapping Act.
The specific articles of which stipulate that the surveying business must operate within certain param-
eters, and that it must function in a responsible manner. Thus, firms in this industry must employ pro-
fessional survey engineers with registered practitioner engineering licenses. In addition, these com-

panies cannot commence operations until the necessary business registration has been appropriately
filed and the proper certification by the central authority concerned has been issued. As of the end
of 2022, 154 survey organizations had been examined and approved. Among them, 20 companies
had their businesses suspended and 13 were closed. In total, there are 121 organizations in operation

with 488 professional survey engineers.

3. Providing Digital Terrain Model Results

In order to promote the planning of national land utilization and to fully achieve the sustained op-
eration of national land, the MOI provided high precision and high resolution DTM results for all gov-
ernment agencies from 2006 to 2022. A total of 1,186,386 maps for 1,130 applications for data were

examined and approved during this period, including 158,217 maps for 133 applications for data,
which were examined and approved during 2022.

4. Providing Basic Survey Results
The fruitful results of basic surveys and their derivatives are relatively beneficial aspects of do-
mestic construction. Commencing with projects initiated in 1993, all the relevant published results

have been applied to related materials regarding environmental protection, forestation, continuous
ecological management, eco-tours, water and soil conservation, river and creek restoration, flood
prevention, power supply engineering, science park development, reservoir engineering, high-speed
railways, metro rapid transportation, expressways, sewer construction, monitoring water tables, urban

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