an area around a facility for which arrangements have been made to take urgent protective actions in the event of a nuclear or radiological emergency to avert doses off the site in accordance with int, ala tuumarajatise ümber, milles on eelnevalt planeeritud kiireloomulised kaitsemeetmed kiirgusõnnetuse korral, et vältida ohutusnorme ületava kiirgusdoosi saamist