29 CFR 1910.97 - Nonionizing radiation.

(a)Electromagnetic radiation -

(1)Definitions applicable to this paragraph.

(i) The term electromagnetic radiation is restricted to that portion of the spectrum commonly defined as the radio frequency region, which for the purpose of this specification shall include the microwave frequency region.

(ii)Partial body irradiation. Pertains to the case in which part of the body is exposed to the incident electromagnetic energy.

(iii)Radiation protection guide. Radiation level which should not be exceeded without careful consideration of the reasons for doing so.

(iv) The word “symbol” as used in this specification refers to the overall design, shape, and coloring of the rf radiation sign shown in figure G-11.

(v)Whole body irradiation. Pertains to the case in which the entire body is exposed to the incident electromagnetic energy or in which the cross section of the body is smaller than the cross section of the incident radiation beam.

(2)Radiation protection guide.

(i) For normal environmental conditions and for incident electromagnetic energy of frequencies from 10 MHz to 100 GHz, the radiation protection guide is 10 mW/cm. 2 (milliwatt per square centimeter) as averaged over any possible 0.1-hour period. This means the following:

Power density: 10 mW./cm. 2 for periods of 0.1-hour or more.
Energy density: 1 mW.-hr./cm. 2 (milliwatt hour per square centimeter) during any 0.1-hour period.
This guide applies whether the radiation is continuous or intermittent.

(ii) These formulated recommendations pertain to both whole body irradiation and partial body irradiation. Partial body irradiation must be included since it has been shown that some parts of the human body (e.g., eyes, testicles) may be harmed if exposed to incident radiation levels significantly in excess of the recommended levels.

(3)Warning symbol.

(i) The warning symbol for radio frequency radiation hazards shall consist of a red isosceles triangle above an inverted black isosceles triangle, separated and outlined by an aluminum color border. The words “Warning - Radio-Frequency Radiation Hazard” shall appear in the upper triangle. See figure G-11.

(ii) ANSI Z53.1-1967 or ANSI Z535.1-2006(R2011), incorporated by reference in § 1910.6, is for use for color specification. All lettering and the border shall be of aluminum color.

(iii) The inclusion and choice of warning information or precautionary instructions is at the discretion of the user. If such information is included it shall appear in the lower triangle of the warning symbol.

Figure G-11 - Radio-Frequency Radiation Hazard Warning Symbol

(4)Scope. This section applies to all radiations originating from radio stations, radar equipment, and other possible sources of electromagnetic radiation such as used for communication, radio navigation, and industrial and scientific purposes. This section does not apply to the deliberate exposure of patients by, or under the direction of, practitioners of the healing arts.

(b) [Reserved]

[ 39 FR 23502, June 27, 1974, as amended at 61 FR 9236, Mar. 7, 1996; 78 FR 35566, June 13, 2013]

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.

United States Code
U.S. Code: Title 20 - EDUCATION
U.S. Code: Title 29 - LABOR
U.S. Code: Title 31 - MONEY AND FINANCE
U.S. Code: Title 49 - TRANSPORTATION
Statutes at Large
Public Laws

Title 29 published on 05-May-2017 03:24

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 29 CFR Part 1910 after this date.

  • 2017-03-21; vol. 82 # 53 - Tuesday, March 21, 2017
    1. 82 FR 14439 - Occupational Exposure to Beryllium; Further Delay of Effective Date
      GPO FDSys XML | Text
      DEPARTMENT OF LABOR, Occupational Safety and Health Administration
      Final rule; further delay of effective date.
      As of March 21, 2017, the effective date of the final rule amending 29 CFR parts 1910, 1915, and 1926 that published in the Federal Register of January 9, 2017 at 82 FR 2470, delayed at 82 FR 8901 on February 1, 2017, is further delayed to May 20, 2017.
      29 CFR Parts 1910, 1915, and 1926