The ‘Metadata, Methodology and Registers Management’ Department (MMRM) shall perform the following activities:

1. Preparation of short-term, medium-term and long-term planning documents in the field of statistics.

2. Planning, organizing and carrying out the operational coordination of the statistical activities at NSI.

3. Interacting with other statistical bodies in the process of compilation, implementation and reporting of the National Statistical program.

4. Implementing the coordination in organizing and conducting the meetings of the National Statistical Council.

5. Maintaining the Quality Management System in the National Statistical System in accordance with the European Statistical Code of Practice and the European Quality Assurance Framework.

6. Maintaining the Integrated Management System at NSI according to the standard ISO 9001.

7. Developing and maintaining the national statistical classifications and nomenclatures independently or together with other state institutions.

8. Providing methodological assistance in the using of classifications in the statistical and social practice.

9. Maintaining the Information System ‘Statistical Classifications’.

10. Coordinating the activities at NSI connected with fulfilling the obligations under the Special Data Dissemination Standard Plus (SDDS Plus) from IMF to the Bulgarian National Bank.

11. Organizing the maintenance and functioning of the National Register of Populated places.

12. Identifying the needs for modernization of the statistical surveys by using data from alternative sources.

13. Coordinating the activities related to the use of alternative data sources for the production and dissemination of official statistics.

14. Creation and maintenance of registers and catalogues.