It is managed by the ISOBUS group in VDMA.
The ISOBUS standard specifies a serial data network for control and communications on forestry or agricultural tractors and implements. It consists of several parts: General standard for mobile data communication, Physical layer, Data link layer, Network layer, Network management, Virtual terminal, Implement messages applications layer, Power train messages, Tractor ECU, Task controller and management information system data interchange, Mobile data element dictionary, Diagnostic, File Server. The work for further parts is ongoing.
Agricultural Industry Electronics Foundation and ISOBUS 
The Agricultural Industry Electronics Foundation works to promote ISOBUS and coordinate enhanced certification tests for the ISO 11783 standard.
Media related to ISOBUS at Wikimedia Commons