At present the system of MoEW operates 16 regional inspectorates /RIEW/: RIEW – Blagoevgrad, RIEW – Burgas, RIEW – Varna, RIEW – Vratsa, RIEW – Veliko Tarnovo, RIEW – Montana, RIEW – Pazardzhik, RIEW – Pernik, RIEW – Pleven, RIEW – Plovdiv,  RIEW – Ruse, RIEW – Smolyan, RIEW – Sofia, RIEW – Stara Zagora, RIEW – Haskovo, RIEW – Shumen /links/.

The Regional Inspectorate of Environment and Water /RIEW/ are administrative structures of the Ministry to ensure implementation of the state policy on environmental protection at a regional level. They carry out their activity on the territory of one or more districts, as they perform regulatory, informative and control functions.

In carrying out the regulatory functions, RIEWs develop or participate in the development of documents in the field of environmental protection and sustainable use of natural resources and conduct regional activities related to state policy.

The control functions of RIEWs consist in carrying out preventive, current and ex-post control on the implementation of legislation, regulating the quality of the components of the environment and the factors that influence it. The control activities are related to the prevention of pollution or damage and restoration of environment after pollution or damage, protecting waters from pollution, compliance to ensure environmentally sound waste management, protection of elements of the National Ecological Network and biodiversity conservation, air quality protection.

RIEWs carry out checks, issue warning and observation protocols, give instructions, monitor their implementation, require records, documents and written statements by representatives of the inspected sites; issue documents for establishment of administrative violations; access sites for check when activities are actual or potential sources of pollution or environmental damage; request and receive assistance from the state and municipal authorities, organizations, legal entities and individuals; participate and assist in the establishment and functioning of the National System for Environmental Monitoring; impose compulsory administrative measures.

Informative functions of the RIEWs include providing information on the environment to the public and media, raising public awareness and culture in the field of the environment, maintenance of registers and databases.