The population warning and notification system is based on the Act of National Council of the Slovak Republic No. 42/1994 Coll.ll. on Civil Defense of the Population as amended by the Act of National Council of the Slovak Republic No. 117/1998 Coll.ll. The "Agreement on Mutual Cooperation in Securing Emergency Preparedness" made between The Slovak Ministry of Interior Public Service Division´s Civil Protection Office and SE, a.s. specifies the corresponding competencies of the bodies and organizations to provide for the above measure.

Public warning and body and organizations notification systems include, within a radius of 30 km around NPP Bohunice (Figs.4.7.2, 4.7.3):

1. A system of telecommanded elements of the power system (RCC). HADOS receivers are used for notification systems which can receive 7 signals; the following signals are used: 1- imminent emergency, 2 – emergency, 3 - loss into water sources, and 7 - check. Members of emergency commissions, mayors of municipalities and towns, large enterprises and other institutions within a 30 km radius around NPP Bohunice, as well as all members of the KRH SR are equipped with such receivers, a total of approx. 1,500 receivers.

Controllable receivers HERKUL-S (a total of 419 pcs) are used for public warning purposes. In case of need, they can switch on rotary sirens in a 30 km radius, and can also switch sirens selectively within a selected sector.

2. A system of automated telephone calls ZU 1619 APC Zuzana; it is a computer-assisted system which can call selected organizations in the affected area.

Decisions concerning the initiation of both systems (RCC and Zuzana) are made by Shift Supervisor of the unit which caused the emergency. HADOS receivers for notification are tested twice a week. Warning system (sirens) tests are made four times a year.

Public warning and bodies and organizations notification system within a 20 km radius around the Mochovce site comprise:

1. A warning system comprising a system of electric radio-controlled sirens in the area enabling individual or group activation and providing feedback,
2. A notification system comprising pagers for emergency teams, mayors of municipalities and towns.

Both systems are controlled from the NPP Mochovce Control Room. Decisions on the iniciation are made by Shift Supervisor.