The National Infrastructure Integration System (KIUT) is a WMS service provided by GUGiK that combines infrastructure network data from County Centers for Geodetic and Cartographic Documentation across Poland into a single, unified layer. This service is available only for Poland.

Through which, at a single WMS address, we can access data on underground networks:
- water supply networks
- sewerage networks
- electric power networks
- gas networks
- and others
for the whole of Poland, free of charge.
Why is this service useful?
- It is enough to add the layer to the System once, and you will always have up-to-date data on underground infrastructure available for viewing in a simple and convenient way.
Problems with KIUT
- Sometimes the service works slowly (depending on the time of day and the county from which the data is being transmitted).