The Texas Department of Transportation (TxDOT) may install CITY LIMIT (I-2aT) signs on any on-system highway for incorporated towns or cities. Signs should not be installed for a municipality’s extraterritorial jurisdiction (ETJ). TxDOT may install (I-2cT) signs along conventional highways for unincorporated communities that are landmarks, geographical interests, or areas that may be of interest to travelers that are sometimes useful for orientation information.