The Department regulates electric and magnetic fields (EMF) from electrical transmission lines, under the provisions of ss. 403.061(30) and 403.523(14), F.S. The pertinent rule is 62-814, F.A.C.. Those companies (primarily utilities) which construct or operate transmission lines would be regulated under these provisions. No permit, per se, is issued; this regulation is a monitoring function under which the applicant is demonstrating compliance with the regulations.

   EMF in the transmission line frequency range (60 Hertz) is classified as "non-ionizing radiation", as compared to ionizing radiation like X-rays.  In addition to DEP's jurisdiction over the transmission line-related nonionizing radiation, the Department of Health also has regulatory jurisdiction over various sources of non-ionizing radiation, such as that from laser equipment, scanners used for bar code readers, lasers for medicine, and so forth.

   For additional reading, refer to a report by the National Institute of Environmental Health Services.