[Code of Federal Regulations]
[Title 10, Volume 1]
[Revised as of January 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR20.1901]

[Page 329-330]
 
                            TITLE 10--ENERGY
 
                CHAPTER I--NUCLEAR REGULATORY COMMISSION
 
PART 20--STANDARDS FOR PROTECTION AGAINST RADIATION--Table of Contents
 
                   Subpart J--Precautionary Procedures
 
Sec. 20.1901  Caution signs.

    Source: 56 FR 23401, May 21, 1991, unless otherwise noted.


    (a) Standard radiation symbol. Unless otherwise authorized by the 
Commission, the symbol prescribed by this part shall use the colors 
magenta, or purple, or black on yellow background. The symbol prescribed 
by this part is the three-bladed design:
[GRAPHIC] [TIFF OMITTED] TC02OC91.000

    (1) Cross-hatched area is to be magenta, or purple, or black, and
    (2) The background is to be yellow.
    (b) Exception to color requirements for standard radiation symbol. 
Notwithstanding the requirements of paragraph (a) of this section, 
licensees are authorized to label sources, source holders, or device 
components containing sources of licensed materials

[[Page 330]]

that are subjected to high temperatures, with conspicuously etched or 
stamped radiation caution symbols and without a color requirement.
    (c) Additional information on signs and labels. In addition to the 
contents of signs and labels prescribed in this part, the licensee may 
provide, on or near the required signs and labels, additional 
information, as appropriate, to make individuals aware of potential 
radiation exposures and to minimize the exposures.