- Type of operation: continuous on an annual basis.
- Population scope: companies and local units active as at 1 January of each year. All registrations, de-registrations and permanences occurred in the previous year.
- Geographical scope: the entire national territory.
- Reference period of the results: 1 January of each year for stock data (companies and local units) and the complete previous year for flow data (CCD movements).
- Collection method: from administrative registers.