**Executive Summary**
This document from the Tamil Nadu Government Gazette, dated October 8, 2025, announces amendments to the Tamil Nadu Combined Development and Building Rules, 2019. The key changes involve introducing regulations for "In-Building Solutions (IBS)" and defining "Telecom Service Provider (TSP)". These amendments are effective immediately.
**Key Points / Main Content**
* **Definitions:**
* **In-Building Solutions (IBS):** Defined as telecommunication infrastructure and associated equipment within a building to enable high-speed data transmission, enhanced signal coverage, reduced cell interference, adequate signal strength, optimum spectrum use, and fewer call drops.
* **Telecom Service Provider (TSP):** Defined as an agency authorized by the Department of Telecommunications (DoT), Ministry of Communications, Government of India to install, operate, or maintain telecommunications or information technology services within a building.
* **Building Requirements for IBS:**
* Specifies the size of Telecom Rooms based on the floor area of the building:
* More than 750 sq.m upto 1000 sq.m: Shallow Room-0.6 m x 2.6 m Walk-in Room-1.3 m x 1.3 m
* More than 1000 sq.m upto 2000 sq.m: 3.0m X 2.4 m
* More than 2000 sq.m: 3.0 m X 3.4 m
* Each block must have a corresponding telecom room.
* Installation spaces for IBS must be:
* Protected from flooding.
* Free from exposure to water, moisture, fumes, gases, and dust.
* Capable of supporting IBS equipment.
* Located away from vibration sources.
* Service Plan: Owner/applicant must submit a service plan for buildings exceeding 2,000 sq.m. certified by a qualified telecom-networking consultant.
* Infrastructure Access: Owner/applicant must furnish an undertaking that the IBS infrastructure will be available to all Telecom Service Providers.
* **Layout (Plotted Development) Requirements:**
* Empty pipes (large size Hume pipes / HDPE pipes) of minimum width of 0.15m in diameter shall be laid along the outer edges of the layout roads.
* The layout plans shall clearly indicate the telecom as Utility Infrastructure line.
**Impact Analysis**
**Stakeholder: Building Owners/Applicants**
* **Impact:** Must adhere to new regulations regarding Telecom Rooms, installation spaces, service plans, and infrastructure access for IBS.
* **Action Required:** Ensure compliance with the new building requirements, submit necessary plans and undertakings, and make IBS infrastructure available to all Telecom Service Providers.
**Stakeholder: Telecom Service Providers (TSPs)**
* **Impact:** Regulated definition provided for TSPs and the IBS infrastructure should be available for their use.
* **Action Required:** Ensure compliance with being authorized by the Department of Telecommunications (DoT) and make use of available IBS infrastructure.
**Stakeholder: Telecom-Networking Consultants**
* **Impact:** Building projects with a floor area of more than 2,000 sq. m require a service plan to be submitted by the owner/applicant with specifications certified by qualified telecom-networking consultants.
* **Action Required:** Support building owners/applicants in submitting service plans with required specifications.
Key Entities Referenced
Tamil Nadu Combined Development and Building Rules, 2019: The primary policy document being amended.
In-Building Solutions (IBS): A telecommunication infrastructure and associated equipment installed within a building, as defined in the amendment.
Telecom Service Provider (TSP): An agency authorized to install, operate or maintain telecommunications or information technology services within a building.
Tamil Nadu Town and Country Planning Act, 1971: Act providing the powers for the amendment.
Department of Telecommunications (DoT), Ministry of Communications, Government of India: The authority that authorizes Telecom Service Providers (TSPs).