The National Electronic Tool (NEN) is a complex electronic tool for administration, public procurement and concessions in all categories of public procurement and in all categories of contracting authorities, including sectoral. NEN supports all range of computerization from the register of public procurement to fully electronic procedures.

NEN will allow interconnection with internal systems of contracting authorities and suppliers or e-Government systems in the Czech Republic. It will fully support planning activities as it will often be used for public procurement under long-term investment projects.

The National Electronic Tool - Reference Environment (NEN-REF) - this is a test environment where potential suppliers and contracting authorities are testing the awarding of public procurement. The NEN-REF environment is the same as the official environment, but contracts do not have any legal effect.

NEN REF- allows a submission to test procurement procedures.