Home Home Innovative Technology for Reliable and Secure OT Communications Our Mission We actively develop and support measures to improve interoperability and cybersecurity in DNP systems by developing technologies and standards implementing a conformance program and providing education to the industry. Activities of the Users Group DNP3 has grown to be the most widely used protocol for electric transmission and distribution communications in North America and other regions of the world and is a named standard for DER communications. DNP3 is also broadly adopted in adjacent industries such as water wastewater transportation and the oil and gas industry. The DNP Users Group DNPUG owns and maintains DNP3 and supports our user community and the industry by enhancing and promoting DNP3 Distributed Network Protocol also known as IEEE Std.