Extremely low frequency (ELF) fields includes alternating current (AC) fields and other electromagnetic, non-ionizing radiation from 1 Hz to 300 Hz. ELF fields at 60 Hz are produced by power lines, electrical wiring, and electrical equipment.

Reviews the evidence on cancer risks from residential and occupational extremely low frequency (ELF)- electric magnetic field (EMF) exposures, which has been published since an earlier NRPB report (1992).

Answers frequently-asked questions about extremely low frequency (ELF)- electric magnetic fields (EMFs) in the workplace and helps identify EMF sources at work and suggests simple steps for reducing exposures.

Public and employee concerns about extremely low frequency (ELF) exposure has grown as a result of increased media coverage over the last few years. The issue of ELF radiation is very controversial.

Provides consensus exposure limits from the Organization of Governmental Industrial Hygienists for Sub-Radio frequency (30kHz and below) and Static Electric and Magnetic Fields. International Commission on Non-Ionizing Radiation Protection (ICNIRP) Guidelines

Extremely low frequency (ELF) radiation safety programs are often a part of a larger radiation or non-ionizing radiation safety program. For additional information on radio frequency (RF) safety programs, see OSHA's Radiofrequency and Microwave Radiation Safety and Health Topics Page.

Additional Resources Training Non-Ionizing Radiation: Standards and Regulations. OSHA Slide Presentation, (October 2002). Other Resources American Industrial Hygiene Association (AIHA). OSHA Alliance Page. Environews by Topic: EMFs. National Institute of Environmental Health Sciences (NIEHS).

Extremely Low Frequency (ELF) radiation at 60 HZ is produced by power lines, electrical wiring, and electrical equipment. Common sources of intense exposure include ELF induction furnaces and high-voltage power lines.

However, this is well within the ANSI C95.1 - 1982, Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 300 kHz to 100 GHz, limit of 632 volts per meter for AM radiofrequencies.

If the ac proof test is made at a frequency other than 60 hertz, the permissible proof-test current shall be computed from the direct ratio of the frequencies.