DVGW

DVGW stands for Deutscher Verein des Gas- und Wasserfaches, a German technical-scientific association serving the gas and water industries. It operates as a non-profit organization with membership from utilities, manufacturers, engineering firms, and researchers. The association aims to improve the safety, reliability, and sustainability of gas supply and drinking water systems through the development of technical rules, certification programs, and knowledge exchange. Its work is organized into two main fields: Gas and Water, covering network operation, installation, measurement, testing, and quality management.

A core activity of DVGW is the formulation and maintenance of technical rules and guidelines used by industry, regulators, and authorities. These include DVGW Work Sheets and installation guidelines such as the Technische Regeln Gasinstallation (TRGI) for safe gas installations. DVGW also issues guidance on water treatment, distribution, and drinking water quality, helping to harmonize practices across the sector.

Certification and conformity assessment are key components of DVGW’s mandate. The organization certifies products, materials, and service personnel to ensure compliance with its rules, and it provides certification marks and testing services to support quality and safety in the gas and water supply chains.

Organization and governance typically involve a board and technical committees, with DVGW Service GmbH handling certification activities and training. Regional and technical committees guide program development, research collaboration, and standardization efforts.

DVGW collaborates with national and international standardization bodies, including DIN, CEN, and ISO, to harmonize technical standards for gas and water. Through its standards, certification, and professional networks, DVGW plays a central role in ensuring safe and efficient energy and water infrastructure in Germany and beyond.