Implementing Plan No. 515/KH-BCA-BNN&MT dated August 31, 2025 on implementing the Campaign to enrich and clean up national land databases, the Department of Land Management has developed a system of guiding documents to send to localities and issued documents to the Departments of Agriculture and Environment of localities to ensure consistency and synchronization in the implementation process.
The documents include: Technical guidance on collecting, updating, editing and supplementing information on land database, attaching land plot identification codes and implementing in the context of local government at 2 levels; Instructions for reviewing, formworking and synthesizing land data in 3 groups and reporting the results of classifying national data; Documents and forms collecting information on types of land and housing certificates that have not been updated in the land database, along with citizen identification cards of land users and home owners.
According to the document, the steps of collecting, updating, correcting and supplementing information on land use certificates, land plot identification codes and implementing local government at 2 specific levels are as follows:
Step 1: Preparation
a) Develop a detailed construction plan;
b) Preparing human resources and workplaces;
c) Prepare materials, equipment, tools, and software to serve the work of editing the land database when implementing the arrangement of administrative units at the provincial and commune levels.
Step 2: Collect and evaluate documents
a) Collecting land documents and data including: cadastral database; cadastral records, cadastral maps that have been revised after the arrangement of administrative units;
b) Make a reference to the plots of land and assets attached to the land of the land database that need to be revised after the arrangement of administrative units according to the attached Table No. 01;
c) Documents and data after collection must be compiled according to the collected documents summary table according to the attached Table No. 02.
Step 3: Adjust land spatial data
a) Adjust land spatial data according to new administrative boundaries approved by competent authorities. The district-level administrative boundary data layer and district-level administrative boundary data layer have been built and converted to storage to serve management and lookup work;
b) Adjusting spatial data of land plots and assets attached to land: updating and supplementing information on commune-level administrative unit codes, map sheet numbers; land plot numbers; addresses according to new administrative units;
c) Adjust the cadastral space data of the thematic land space data according to the revised cadastral map system. Before editing cadastral space data, it is organized to store and manage according to the principle of managing historical information changes of cadastral data.
Step 4: Develop a Land Plot Identification Code The land plot identification code is a code assigned to each plot of land and is unique nationwide. A specific plot of land only has 01 identification code and is unique. The land plot identification code is a 12- character chuoi encoded by geographical location in the international coordinate system WGS84 of the land plot. The land plot identification code is encrypted according to geographical coordinates (degrees and extended periods) according to the instructions in Official Dispatch No. 2001/QLDTKKKTTDD dated August 28, 2025 of the Department of Land Management on instructions for implementing the adjustment of land use certificates, building Land plot identification codes
a) Determining the characteristics of the land plot;
b) Calculating the location from Vietnam's VN2000 coordinate system to the WGS84 international coordinate system;
c) Codifying the location of the land plot's characteristic points;
d) Update the Land Plot Spatial Database: update the Land Plan Code Database for all land plots. The land plot code of a specific land plot is the Land plot identification code of that land plot.
Step 5: Adjust cadastral data
a) Update and supplement the data group on land plots and the data group on assets attached to land with information fields on administrative unit codes, map sheet numbers, land plot numbers, addresses according to the new administrative unit;
b) Data that is cadastral before being edited is organized for storage and management according to the principle of managing historical information changes of cadastral data.
Step 6: Update non-structural land data
a) Review the linkage of non-structured land data with land plot data;
b) Enter additional information describing non-structural data;
c) Update the non-structural land data of land documents to ensure linkage to land plot data.
Step 7: Check and accept cadastral data
a) Prepare documents and serve supervision, inspection, acceptance;
b) Synthesize and determine the volume of products that have been implemented;
c) Make a record of data handover
Step 8: Reviewing and integrating data into the system currently managing and operating the land database in the locality The Land Registration Office performs the following tasks:
1. Coordinate the information of all land plots in the land database with the sources of documents and data used to update, correct, and supplement the information of the cadastral database when implementing the two-level local government.
2. Integrating the controlled data into the system that is managing and operating the local land database.
