Plant Emergency: Excessive release of radioactive ma : terial or high radiation fields in a section of the plant .

Site Emergency: Uncontrolled release of radioactive material or high radiation fields with in the site boundary 

Off-Site Emergency: High release of radioactive material from the plant resulting in significantly increased radiation fields and/or contamination levels extending to areas outside the site 

Emergency Planning Zones (EPZ): Emergency planning zone, defined around the plant up to 16 km, provides a basic geographic frame work for decision making on implementing measures as part of a graded response in the event of an emergency. The area around the Kaiga generating station is divided into the following Zones up to 16 km radius. 

Exclusion Zone: The exclusion Zone extends up to a distance of 1.6 km around the central plant zone of 0.7 km where no public habitation is permitted. This zone is physically isolated from out side areas by plant fencing and is under the control of Kaiga Generating Station. 

Sterilised Zone: Sterilised zone is an area where no new growth of population is permitted. Natural growth is however allowed in this Zone. This are extends up to a radius of 5 km from the central plant Zone. This Zone is defined to restrict the population to an easily transportable number in case of an emergency. 

Primary Zone: The primary Zone extends up to 8 km from central part Zone where protective measures like evacuation and sheltering are required against possible plume exposures during an Emergency. 

Secondary Zone: The secondary Zone extends up to 16 km from central plant Zone protective measures like sheltering control on food stuff are required against possible exposure from ingestion of radioactivity.