1. a) Each high radiation area shall be conspicuously posted with a sign or signs bearing the radiation caution symbol and the words:

   CAUTION (OR DANGER)

   HIGH RADIATION AREA

2. b) Each radiation area shall be conspicuously posted with a sign or signs bearing the radiation caution symbol and the wording required in subsection (a) of this Section, or the words:

   CAUTION (OR DANGER)

   RADIATION AREA

3. c) Whenever practicable, ropes or barriers shall be used in addition to appropriate signs to designate radiation areas and to help prevent unauthorized entry.
4. d) Notwithstanding the requirements of 32 Ill. Adm. Code 340.920(a), each radiation area may be posted in accordance with 32 Ill. Adm. Code 340.920(b) (i.e., both signs may be posted at the same location at the boundary of the radiation area).

Notwithstanding any provisions in 32 Ill. Adm. Code 340.930(a), areas in which radiography is being performed shall be conspicuously posted as follows:

(Source: Amended at 28 Ill. Reg. 12598, effective October 1, 2004)