| IV | Dimapur Division | Entire state of Nagaland, Karbi Anglong, Golaghat, Jorhat, Sibsagar, Tinsukia, Dibrugarh districts of South-western Assam alongwith parts of Nagaon district of Central Assam, Lohit, Changlang, Dibang and Tirap districts of Eastern Arunachal Pradesh. |
| Formations: | ||
| A. Land Customs Station: | ||
| 1 | Nampong LCS (Non functional) | |
| B. Preventive formations: | ||
| 1 | Anti-smuggling Unit, Dimapur. | Entire jurisdiction of Dimapur division. |
| 2 | Kohima CPF | Phek, Okha, Mokokchung,Junebhoto and Mon districts of the State of Nagaland. |
| 3 | Dibrugarh CPF | From Bokhakhat to Moran and part of Dibrugarh district of Assam. |
| 4 | Numaligarh CPF | Whole of Golaghat,Jorhat , Sibsagar& Karbi Anglong districts of the State of Assam excluding Diphu sub-division. |
| 5 | Lumding CPF | Hojai sub-division of Nagaon district and Diphu sub-division of Karbi Anglong District of Assam. |
| 6 | Tinsukia CPF | Entire Tinsukia District of the Sate of Assam and the districts of Changlang and Tirap of the State of Arunachal Pradesh. |

