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FCC Part 15 Radio Frequency Devices
Section 15.21

The Federal Communications Commission (FCC) is the authority in the United States of America that creates and enforces the use of airwaves throughout the entire radio frequency spectrum. This group of documents contains the entirety of the FCC Part 15 regulations that concern unlicensed radio frequency devices. As with all government documents, this material is in the public domain and may be freely copied so long as the content is not changed. This copy is provided as a convenience for RF Cafe visitors. 

Click here for the Table of Contents.

  
 [Code of Federal Regulations]
[Title 47, Volume 1]
[Revised as of October 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR15.21]
[Page 754]
 
                       TITLE 47--TELECOMMUNICATION
 
              CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
 
PART 15_RADIO FREQUENCY DEVICES--Table of Contents
 
                            Subpart A_General
 
Sec. 15.21  Information to user.
 
    The users manual or instruction manual for an intentional or 
unintentional radiator shall caution the user that changes or 
modifications not expressly approved by the party responsible for 
compliance could void the user's authority to operate the equipment. In 
cases where the manual is provided only in a form other than paper, such 
as on a computer disk or over the Internet, the information required by 
this section may be included in the manual in that alternative form, 
provided the user can reasonably be expected to have the capability to 
access information in that form.
[54 FR 17714, Apr. 25, 1989, as amended at 68 FR 68545, Dec. 9, 2003]



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