IEEE 802.18, the Radio Regulatory Technical Advisory Group ("RR-TAG"), is a working group of IEEE 802

IEEE 802

IEEE 802 refers to a family of IEEE standards dealing with local area networks and metropolitan area networks.More specifically, the IEEE 802 standards are restricted to networks carrying variable-size packets. IEEE 802 refers to a family of IEEE standards dealing with local area networks and...

, the LAN/MAN Standards Committee (LMCS). The working group currently has 6 projects on standards for radio

Radio

Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...

-based systems:

• IEEE 802.11
  IEEE 802.11
  IEEE 802.11 is a set of standards for implementing wireless local area network computer communication in the 2.4, 3.6 and 5 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee . The base version of the standard IEEE 802.11-2007 has had subsequent...
  
   (Wireless Local area network
  Local area network
  A local area network is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building...
  
  - WLAN)
• IEEE 802.15
  IEEE 802.15
  IEEE 802.15 is a working group of the Institute of Electrical and Electronics Engineers IEEE 802 standards committee which specifies wireless personal area network standards. It includes seven task groups.-Task group 1 :...
  
   (Wireless Personal area network
  Personal area network
  A personal area network is a computer network used for communication among computer devices, including telephones and personal digital assistants, in proximity to an individual's body. The devices may or may not belong to the person in question. The reach of a PAN is typically a few meters...
  
   - WPAN)
• IEEE 802.16
  IEEE 802.16
  IEEE 802.16 is a series of Wireless Broadband standards authored by the Institute of Electrical and Electronics Engineers . The IEEE Standards Board in established a working group in 1999 to develop standards for broadband Wireless Metropolitan Area Networks...
  
   (Wireless Metropolitan area network
  Metropolitan area network
  A metropolitan area network is a computer network that usually spans a city or a large campus. A MAN usually interconnects a number of local area networks using a high-capacity backbone technology, such as fiber-optical links, and provides up-link services to wide area networks and the...
  
   - WMAN)
• IEEE 802.20
  IEEE 802.20
  IEEE 802.20 or Mobile Broadband Wireless Access was a specification by the standard association of the Institute of Electrical and Electronics Engineers for mobile wireless Internet access networks...
  
   (Wireless Mobility)
• IEEE 802.21
  IEEE 802.21
  802.21 is an IEEE standard published in 2008. The standard supports algorithms enabling seamless handover between networks of the same type as well as handover between different network types also called Media independent handover or vertical handover...
  
   (Hand-off/Interoperability Between Networks)
• IEEE 802.22
  IEEE 802.22
  IEEE 802.22 is a standard for Wireless Regional Area Network using white spaces in the TV frequency spectrum. The development of the IEEE 802.22 WRAN standard is aimed at using cognitive radio techniques to allow sharing of geographically unused spectrum allocated to the Television Broadcast...
  
  (Wireless Regional Area Network - WRAN).

You can get more information at: http://www.ieee802.org/18/

The RR-TAG monitors the interests of the above 6 projects, at both national and international levels, and then makes comments and recommends policies to regulators, which balance the interests of all the wireless LMCS projects.