TIA/EIA-222 standard applies to steel antenna towers and antenna supporting structures for all classes of communications service, such as AM, FM, TV, VHF, Cellular/PCS, Microwave, unlicensed frequency bands, etc. The standard utilizes wind and ice loading criteria based on an annual probability. The standards was originally designed for the United States however it may also be adapted for international applications provided the appropriate basic wind speed (highest-Km/Mile) and ice loading is available.
The main intention of the standard is to serve the public interest and protect the public safety through eliminating misunderstanding between manufacturers and purchasers. The information contained in the standard represents the accepted industry practices in the design of steel antenna supporting structures and is revised every five years to maintain its modern state of tower design practiced within the industry. This standard ensures that buyers have the opportunity to specify and obtain the highest quality product available for any given application.

Accredited by the American National Standards Institute (ANSI), EIA provides a forum for the industry to develop standards and publications in our major technical areas: electronic components, consumer electronics, electronic information, telecommunications, and Internet security. Standards committees are managed by various sectors, TIA oversees the telecommunications sector.
Additional information about the standard can be obtained by following the links below:

For more information visit the following web sites:

Electronic Industries Alliance (EIA)
http://www.eia.org

Telecommunication Industry Association (TIA)
http://www.tiaonline.org/standards