Afi 48 109

Only engineering and administrative controls are approved for use in the USAF. PPE are not approved for use with EMF radiation but may be used to protect from other hazards such as heat and electricity.

The transmitter stops transmitting radiated EMF energy when the antenna reaches a specific azimuth (an arc in a spherical/rotating system) region.

Absorbs EMF energy while an EMF system is being tested by being hooked onto the antenna. This system must be monitored for leaks and also care must be used as it heats up due to the radiation.

Automatically switch off the EMF emitter when a door, hatch or other entry point is breached.

Are used for emergency purposes only. Immediately shuts down the system so that the emitter stops transmitting and should never be the primary source of controls for EMF radiation.

Used when there is the potential for electric shock or electric burns and is required when frequencies are below 30 MHz. Grounding wires or nonconductive protective equipment used to isolate or insulate technicians from the electrical current.

Informing the owner/operator of when you or someone else will be entering the area where an emitter could pose a hazard. This can be two way communication or simply letting someone know about a visit before it happens.

Conducted for all AF personnel who routinely work or enter areas where RMF radiation levels may exceed the MPE. Renewed annually and must be done when bringing in a new emitter.

- Ensuring that all workers are properly trained on the hazards associated with EMF - Verifying that required warning signs and safety devices are in place or properly set before beginning work - Performing jobs in a manner to keep exposures to EMF as low as reasonably achievable (ALARA) and below MPE. - Ensuring all parties involved understand procedures/signals to be used for current operations - Ensuring worker report suspected or alleged overexposure to EMF to supervisors, responsible area supervisor, unit commander and medical facility.

Visiting guests must be informed that there is a chance they might enter an upper tier environment.

Used in areas with high EMF levels to clearly identify EMF transmission. Normally located outside the hazardous area/facility.

AFI 48-109 outlines mandatory posting requirements for upper and lower tier areas in which warning signs should be placed where they are visible from all directions of approach. Upper tier must have warning signs posted at all access points.

A metal or chain link or wooden fence is used in conjunction with warning signs. Wooden fences are often used around high-frequency emitters due to heat generation.

Implemented in instances where permanent controls or roping off of areas is not feasible.

Delineates the perimeter of a hazard area by using red, yellow, or orange traffic cones affixed with EMF warning signs to deter individuals from entering the area.