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FDA Consumer Update

U.S. Food and Drug Administration Cell Phone Facts Consumer Information on Wireless Phones

1. What kinds of phones are the subjects of this update?

The term “wireless phone“ refers here to handheld wireless phones with built-in antennas, often called “cell,” “mobile,” or

“PCS“ phones.

These types of wireless phones can expose the user to measurable radiofrequency energy (RF) because of the short

distance between the phone and the user’s head. These RF exposures are limited by Federal Communications Commission

safety guidelines that were developed with the advice of FDA and other federal health and safety agencies.

When the phone is located at greater distances from the user, the exposure to RF is drastically lower because a person’s

RF exposure decreases rapidly with increasing distance from the source. The so-called “cordless phones,” which have a

base unit connected to the telephone wiring in a house, typically operate at far lower power levels, and thus produce RF

exposures well within the FCC’s compliance limits.

2. Do wireless phones pose a health hazard?

The available scientic evidence does not show that any health problems are associated with using wireless phones. There

is no proof, however, that wireless phones are absolutely safe. Wireless phones emit low levels of radiofrequency energy

(RF) in the microwave range while being used. They also emit very low levels of RF when in the standby mode. Whereas

high levels of RF can produce health eects (by heating tissue), exposure to low level RF that does not produce heating

eects causes no known adverse health eects.

Many studies of low level RF exposures have not found any biological eects. Some studies have suggested that some

biological eects may occur, but such ndings have not been conrmed by additional research.

In some cases, other researchers have had diculty in reproducing those studies, or in determining the reasons for

inconsistent results.

3 . What is FDA’s role concerning the safety of wireless phones?

Under the law, FDA does not review the safety of radiation-emitting consumer products such as wireless phones before

they can be sold, as it does with new drugs or medical devices. However, the agency has authority to take action if wireless

phones are shown to emit radiofrequency energy (RF) at a level that is hazardous to the user. In such a case, FDA could

require the manufacturers of wireless phones to notify users of the health hazard and to repair, replace or recall the phones

so that the hazard no longer exists.

Although the existing scientic data do not justify FDA regulatory actions, FDA has urged the wireless phone industry to

take a number of steps, including the following:

ⰺ

Support needed research into possible biological eects of RF of the type emitted by wireless phones:

ⰺ

Design wireless phones in a way that minimizes any RF exposure to the user that is not necessary for device function: and

ⰺ

Cooperate in providing users of wireless phones with the best possible information on possible eects of wireless phone

use on human health

FDA belongs to an interagency working group of the federal agencies that have responsibility for dierent aspects of RF

safety to ensure coordinated eorts at the federal level. The following agencies belong to this working group:

ⰺ

National Institute for Occupational Safety and Health

ⰺ

Environmental Protection Agency

ⰺ

Federal Communications Commission

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