[Code of Federal Regulations]
[Title 10, Volume 1]
[Revised as of January 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR20.2101]

[Page 346-347]
 
                            TITLE 10--ENERGY
 
                CHAPTER I--NUCLEAR REGULATORY COMMISSION
 
PART 20--STANDARDS FOR PROTECTION AGAINST RADIATION--Table of Contents
 
                           Subpart L--Records
 
Sec. 20.2101  General provisions.

    Source: 56 FR 23404, May 21, 1991, unless otherwise noted.


    (a) Each licensee shall use the units: curie, rad, rem, including 
multiples and subdivisions, and shall clearly indicate the units of all 
quantities on records required by this part.

[[Page 347]]

    (b) In the records required by this part, the licensee may record 
quantities in SI units in parentheses following each of the units 
specified in paragraph (a) of this section. However, all quantities must 
be recorded as stated in paragraph (a) of this section.
    (c) Not withstanding the requirements of paragraph (a) of this 
section, when recording information on shipment manifests, as required 
in Sec. 20.2006(b), information must be recorded in the International 
System of Units (SI) or in SI and units as specified in paragraph (a) of 
this section.
    (d) The licensee shall make a clear distinction among the quantities 
entered on the records required by this part (e.g., total effective dose 
equivalent, shallow-dose equivalent, lens dose equivalent, deep-dose 
equivalent, committed effective dose equivalent).

[56 FR 23404, May 21, 1991, as amended at 60 FR 15663, Mar. 27, 1995; 63 
FR 39483, July 23, 1998]