The Government of Tamil Nadu released the State Heat Action Plan (HAP) 2026 to reduce heat-induced illnesses and strengthen heatwave preparedness across the State.
The plan provides a roadmap for heat-risk forecasting, preparedness, and decision-making through multi-sectoral collaboration.
It uses the Steadman Heat Index, which combines air temperature and relative humidity to assess human-perceived heat stress.
The plan includes hazard, exposure, vulnerability, and heat-risk assessments at village panchayat and urban ward levels.
It was prepared by the Tamil Nadu State Disaster Management Authority (TNSDMA) and the Tamil Nadu Disaster Risk Reduction Agency (TNDRRA).
The HAP recommends measures for heatwave management, hospital preparedness, and rapid response to heat-related illnesses.