The Joint Commissioner of Labour, Chennai is having jurisdiction over the Districts of Chennai, Kancheepuram, Tiruvallur, Vellore, Tiruvannamalai, Cuddalore and Villupuram.
The Joint Commissioner of Labour, Coimbatore is having jurisdiction of the districts of Coimbatore, Nilgiris, Erode, Salem, Namakal, Krishnagiri and Dharmapuri.
The Joint Commissioner of Labour , Madurai is having jurisdiction over the Districts of Madurai , Ramanathapuram, Sivaganga, Virudhunagar, Tirunelveli, Tuticorin and Kanyakumari.
The Joint Commissioner of Labour , Trichy is having jurisdiction over the Districts of Karur, Dindigul, Tiruchy, Theni, Tanjore, Tiruvarur, Perambalur, Pudukottai and Nagapattinam.
The Zonal Joint Commissioners of Labour are assigned the following duties in addition to the general administration.