The Digital Topographic Map Data and Digital Land Boundary Data (hereinafter referred to as Digital Data) cover the whole territory of Hong Kong are available for sale to the public from the "Map Publications Centre, Hong Kong" of Survey and Mapping Office. The Digital map detail is represented as single coordinated points, or lines of multiple coordinated points. Coordinates of the Digital Data are in Hong Kong 1980 Grid, and heights are in metres above the Hong Kong Principal Datum.
The Government of the Hong Kong Special Administrative Region remains the owner of the Digital Data at all times
The Digital Map Data's positional accuracy is close to the source material. The 1:1000 Digital Map Data are derived from the original 1:1000 scale Survey Sheets (HP1CSeries) or field data of equivalent accuracy. The same applies to the 1:5000, 1:10000 and the 1:20000 data.
A non-exclusive and non-transferable Licence will be issued to a customer after purchasing the Digital Data. It permits the licensee to use the Digital Data from the date as set out in the Licence. If the licensee ceases using the Digital data, the licensee should confirm to the Government's Representative in writing that the digital Data has been erased from the computer configuration.