FCC Logo - Return to the FCC Home Page  
  Radio Frequency Safety  

Help | Advanced

FDA WebsiteSkip Issue Box 1 Navigation Links

RF Safety bulletinsSkip Issue Box 2 Navigation Links

Bulletin 56
Questions and Answers about Biological Effects and Potential Hazards of Radiofrequency Electromagnetic Fields

Bulletin 65
Evaluating Compliance With FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields



Commission denies EMR Network Application for Review contesting decision on petition for inquiry regarding environmental effects of radiofrequency radiation.
(FCC No. 03-191): [PDF | Word ]
Commissioner Copps: [PDF | Word]

Proposed Changes in the Commission's Rules Regarding Human Exposure to Radiofrequency Electromagnetic Fields. [ET Docket No. 03-137]
Notice of Proposed Rulemaking: [PDF | Word | TXT]
Chairman Powell: [PDF | Word | TXT]

Comments filed in this rulemaking docket can be found by clicking on the link “Search For Filed Comments” at the FCC's Electronic Comment Filing System webpage and by entering 03-137 in the “Proceeding” field.

FCC proposes changes in the Commission's Rules and Procedures regarding human exposure to radiofrequency electromagnetic energy.
[PDF | Word | TXT]

More Highlights.....


FCC Policy on Human Exposure to Radiofrequency Electromagnetic Fields

The FCC is required by the National Environmental Policy Act of 1969, among other things, to evaluate the effect of emissions from FCC-regulated transmitters on the quality of the human environment.   Several organizations, such as the American National Standards Institute (ANSI), the Institute of Electrical and Electronics Engineers, Inc. (IEEE), and the National Council on Radiation Protection and Measurements (NCRP) have issued recommendations for human exposure to RF electromagnetic fields.  On August 1, 1996, the Commission adopted the NCRP's recommended Maximum Permissible Exposure limits for field strength and power density for the transmitters operating at frequencies of 300 kHz to 100 GHz.  In addition, the Commission adopted the specific absorption rate (SAR) limits for devices operating within close proximity to the body as specified within the ANSI/IEEE C95.1-1992 guidelines.  (See Report and Order, FCC 96-326)  The Commission's requirements are detailed in Parts 1 and 2 of the FCC's Rules and Regulations [47 C.F.R. 1.1307(b), 1.1310, 2.1091, 2.1093].  The potential hazards associated with RF electromagnetic fields are discussed in OET Bulletin No. 56, "Questions and Answers About the Biological Effects and Potential Hazards of Radiofrequency Electromagnetic Fields."

More Info....

Frequently Asked Questions (FAQ)

Cellular Telephone FAQs
This section contains answers to the most frequently asked questions received by the Commission concerning cellular telephones.

Radiofrequency Energy FAQs (Updated)
This section contains answers to the most frequently asked questions received by the Commission concerning RF fields and their application. Also, see OET Bulletin 56.

Cellular Telephone Specific Absorption Rate (SAR)

The SAR is a value that corresponds to the relative amount of RF energy absorbed in the head of a user of a wireless handset. The FCC limit for public exposure from cellular telephones is an SAR level of 1.6 watts per kilogram (1.6 W/kg).  Specific Absorption Rate (SAR) for Wireless Phones and Devices Available at FCC Web Site.

More Info...

OET RF Safety Bulletins, Fact Sheets, Guides and Reports

OET Bulletin No. 56: Questions and Answers About Biological Effects Potential Hazards of Radiofrequency Electromagnetic Fields (Fourth Edition, August 1999)

This is an informative bulletin written as a result of increasing interest and concern of the public with respect to this issue. The expanding use of radio frequency technology has resulted in speculation concerning the alleged "electromagnetic pollution" of the environment and the potential dangers of exposure to non-ionizing radiation. This publication is designed to provide factual information to the public by answering some of the most commonly asked questions.

OET Bulletin No. 65: Evaluating Compliance With FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields

This technical bulletin was issued to provide guidance in the implementation of the Commission's new exposure limits and policies. The bulletin provides acceptable methods of determining compliance Commission limits through the use of mathematical and empirical models.

·         Supplement A: Additional Information for Radio and Television Broadcast Stations

·         Supplement B: Additional Information for Amateur Radio Stations

·         Supplement C: Additional Information for Evaluating Compliance of Mobile and Portable Devices with FCC Limits for Human Exposure to Radiofrequency Emissions

Information on Human Exposure to Radiofrequency Fields from Cellular and PCS Radio Transmitters
This page explains technical information on cellular and PCS base stations, mobile, and portable telephones. (Adobe PDF | WordPerfect 5.1)

A Local Government Official's Guide to Transmitting Antenna RF Emission Safety: Rules, Procedures, and Practical Guidance. The LSGAC and the FCC have developed this guide to aid local governmental officials and citizens in understanding safety issues related to radiofrequency emissions from telecommunications towers. [Word97 | Acrobat | News Release]


FM Model for Windows Software Program
FM Model, a program created by Commission staff, is based on a model originally developed by the EPA, to predict ground-level RF power density in the vicinity of towers supporting FM radio broadcast antennas. This model has been found to be very useful for applications when it is desired to predict RF field levels on the ground near simple FM radio installations. If you have any questions about this program please contact the RF Safety Program.

last reviewed/updated 7/1/09

If you have questions about this web page, or would like more information pertaining to OET, please send e-mail to oetinfo@fcc.gov

Skip FCC Footer and Contact InfoFederal Communications Commission
445 12th Street SW
Washington, DC 20554
More FCC Contact Information...
Phone:  1-888-CALL-FCC (1-888-225-5322)
TTY:  1-888-TELL-FCC (1-888-835-5322)
Fax:  1-866-418-0232
E-mail:  fccinfo@fcc.gov
- Privacy Policy
- Website Policies & Notices
- Required Browser Plug-ins
- Freedom of Information Act