Besides the central projects in the CRC, it is structured into three main areas.
Area A: "Register and grammar"
The projects in Area A are concerned with the register dependence of different grammatical phenomena and their modeling in grammatical theories.
Area B: "Register and change"
The projects in Area B investigate how registers emerge and change and how register can affect language change.
Area C: "Register and cognition"
All projects in Area C investigate the cognitive processing of register phenomena. Some projects investigate the course of acquisition of register phenomena while others experimentally explore differences in speech production, speech perception or reception in dependence to differences in situative contexts.