Tamilnadu RTO Code
| CHENNAI (CENTRAL) | TN01 |
| CHENNAI(NORTH-WEST) | TN02 |
| CHENNAI(NORTH EAST) | TN03 |
| CHENNAI(EAST) | TN04 |
| CHENNAI(NORTH) | TN05 |
| CHENNAI(SOUTH-EAST) | TN06 |
| RTO CHENNAI(SOUTH) | TN07 |
| CHENNAI (WEST) | TN09 |
| CHENNAI(SOUTH-WEST) | TN10 |
| TAMBARAM | TN11 |
| POONAMALLE | TN12 |
| AMBATTUR | TN13 |
| SHOLINGANALLUR | TN14 |
| ULUNDURPET | TN15 |
| KALLAKURICHI | TN15Z |
| TINDIVANAM | TN16 |
| GINGEE | TN16Z |
| REDHILLS | TN18 |
| GUMIDIPOONDI | TN18Y |
| CHENGALPATTU | TN19 |
| MADURANTAKAM | TN19Z |
| THIRUTHANI | TN20 |
| KANCHEEPURAM | TN21 |
| SRIPERUMBUDUR | TN21W |
| MEENAMBAKKAM | TN22 |
| Vellore RTO | TN23 |
| GUDIYATHAM | TN23T |
| KRISHNAGIRI | TN24 |
| TIRUVANNAMALAI | TN25 |
| CHEYYAR | TN25Y |
| ARANI | TN25Z |
| NAMAKKAL (NORTH) | TN28 |
| RASIPURAM | TN28Z |
| DHARMAPURI | TN29 |
| PALACODE | TN29W |
| HARUR | TN29Z |
| SALEM(WEST) | TN30 |
| OMALUR | TN30W |
| CUDDALORE | TN31 |
| PANRUTI | TN31Z |
| VILLUPURAM | TN32 |
| ERODE-EAST | TN33 |
| TIRUCHENCODE | TN34 |
| GOBICHETTIPALAYAM | TN36 |
| BHAVANI | TN36W |
| SATHIYAMANGALAM | TN36Z |
| COIMBATORE(SOUTH) | TN37 |
| SULUR | TN42Y |
| COIMBATORE-NORTH | TN38 |
| TIRUPPUR(NORTH) | TN39 |
| AVINASHI | TN39Z |
| METTUPALAYAM | TN40 |
| POLLACHI | TN41 |
| VALPARAI | TN41W |
| TIRUPUR (SOUTH) | TN42 |
| KANGAYAM | TN42Y |
| OOTY | TN43 |
| GUDALUR | TN43Z |
| TIRUCHIRAPALLI (WEST) | TN45 |
| MANAPPARAI | TN45Z |
| PERAMBALUR | TN46 |
| RTO KARUR | TN47 |
| UO MANMANGALAM | TN47X |
| ARAVAKURICHI | TN47Y |
| KULITHALAI | TN47Z |
| SRIRANGAM | TN48 |
| UO LALGUDI | TN48X |
| UO MUSIRI | TN48Y |
| THURAIYUR | TN48Z |
| THANJAVUR | TN49 |
| PATTUKOTTAI | TN49Y |
| THIRUVARUR | TN50 |
| THIRUTHRAIPOONDI | TN50Y |
| MANNARGUDI | TN50Z |
| NAGAPATTINAM | TN51 |
| SANGARI | TN52 |
| METTUR | TN52Z |
| SALEM (EAST) | TN54 |
| PUDUKOTTAI | TN55 |
| ILLUPPUR | TN55Y |
| ARANTHANGI | TN55Z |
| PERUNDURAI | TN56 |
| DINDIGUL | TN57 |
| OTTANCHATRAM | TN57R |
| VADASANDUR | TN57V |
| BATALAGUNDU | TN57Y |
| PALANI | TN57Z |
| MADURAI(SOUTH) | TN58 |
| USILAMPATTI | TN58Y |
| THIRUMANGALAM | TN58Z |
| MADURAI(NORTH) | TN59 |
| VADIPATTI | TN59V |
| MELUR | TN59Z |
| THENI | TN60 |
| UTHAMAPALAYAM | TN60Z |
| ARIYALUR | TN61 |
| SIVAGANGA | TN63 |
| KARAIKUDI | TN63Z |
| MADURAI (CENTRAL) | TN64 |
| RAMANATHPURAM | TN65 |
| PARAMAKUDI | TN65Z |
| COIMBATORE (CENTRAL) | TN66 |
| VIRUDHUNAGAR | TN67 |
| ARUPPUKOTTAI | TN67W |
| KUMBAKONAM | TN68 |
| TUTICORIN | TN69 |
| KOVILPATTI | TN69Z |
| HOSUR | TN70 |
| TIRUNELVELI | TN72 |
| UNIT OFFICE – VALLIOOR | TN72V |
| RANIPET | TN73 |
| ARAKONAM | TN73Z |
| NAGERCOIL | TN74 |
| MARTHANDAM | TN75 |
| TENKASI | TN76 |
| AMBASAMUTHIRAM | TN76V |
| ATTUR | TN77 |
| VALAPADI | TN77Z |
| DHARAPURAM | TN78 |
| UDUMALPET | TN78Z |
| SANKARANKOIL | TN79 |
| TIRUCHIRAPALLI (EAST) | TN81 |
| THIRUVERUMBUR | TN81Z |
| RTO, MAYILADUTHURAI | TN82 |
| SIRKALI | TN82Z |
| VANIYAMBADI | TN83 |
| AMBUR | TN83Y |
| THIRUPATTUR | TN83Z |
| SRIVILIPUTHUR | TN84 |
| SIVAKASI | TN84Z |
| KUNDRATHUR | TN85 |
| RTO ERODE (WEST) | TN86 |
| SRIPERUMBUDUR | TN87 |
| NAMAKKAL (SOUTH) | TN88 |
| PARAMATHI VELUR | TN88Z |
| SALEM(SOUTH) | TN90 |
| CHIDAMBARAM | TN91 |
| NEYVELI | TN91Y |
| VRIDDHACHALAM | TN91Z |
| TIRUCHENDUR | TN92 |
| METTUR | TN93 |