Section 14(1) in Atomic Energy (Radiation Protection) Rules, 2004
(1)The radiation symbol or warning sign shall be conspicuously and prominently displayed at all times -(a)on externally visible surfaces of radiation equipment, and containers for storage of radioactive materials; packages for radioactive materials and vehicles carrying such packages;(b)at the entrance to the room housing the radiation generating equipment; and(c)at the entrance of controlled area and supervised area.
