• American Water Works Association, 6666 West Quincy, Denver, CO 80235. Internet: http://www.awwa.org
• International Brotherhood of Electrical Workers, 1125 15th St. NW., Washington, DC 20005.
• American Public Gas Association, 11094-D Lee Hwy., Suite 102, Fairfax, VA 22030. Internet: http://www.apga.org
• American Public Power Association, 2301 M St. NW., Washington, DC 20037-1484. Internet: http://www.appanet.org

Detailed information on many key occupations in the utilities industry, including the following, may be found in the 2004-05 edition of the Occupational Outlook Handbook:

• Computer systems analysts, database administrators, and computer scientists
• Construction laborers
• Electrical and electronics engineers, except computer
• Engineering technicians
• Industrial machinery installation, repair, and maintenance workers, except millwrights
• Line installers and repairers
• Nuclear engineers
• Power plant operators, distributors, and dispatchers
• Stationary engineers and boiler operators
• Water and liquid waste treatment plant and system operators