These teams were first created in 2005 as part of the ISO 14001 certification process. Each team consists of cross-departmental representatives from environmental management, occupational health and safety, the staff council, as well as the areas to be audited. They verify whether processes, requirements, and guidelines meet the necessary standards and discuss possible measures toward organizational optimization.

Audit conversations are conducted during on-site inspections and include senior faculty. Annually, up to 40 audits are conducted and up to 20 internal auditors directly contact as many as 100 employees. All of this significantly raises awareness of the topic and ensures that optimization measures are effectively implemented. The Unit for Sustainability and Energy Management is in charge of the audits.