Illuminating Engineering Society of North America (IESNA)  
121 Wall Street, 17th Floor 
New York, NY 10005-4001 
(212) 248-5000 
Fax: (212) 248-5017 
E-Mail: iesna@iesna.org
URL: http://www.iesna.org  

The IESNA was founded in 1906 to establish scientific lighting recommendations and to disseminate this information to all interested parties. It is the recognized authority on lighting in North America. Offers continuing education through section and regional meetings, technical conferences, and symposiums. Membership includes engineers, architects, designers, educators, students, contractors, distributors, utility personnel, scientists, physicians and manufacturers. Almost 10,000 individual members and 550 sustaining member companies comprise the membership of IESNA. It publishes the Lighting Handbook, standards, recommended practices, etc., in addition to its monthly magazine, Lighting Design and Application, and its biannual journal. Provides many other member benefits.

Independent Electrical Contractors (IEC)  
2010-A Eisenhower Avenue 
Alexandria, VA 22314 
(703) 549-7351 
Fax: (703) 549-7448 
URL: http://www.ieci.org  

Members include independent electrical contractors, small and large, primarily open shop. Promotes the interests of members regardless of their labor affiliation; works to eliminate "unwise and unfair business practices" and to protect its members against "unfair or unjust taxes and legislative enactments." Sponsors electrical apprenticeship programs; conducts research and educational programs, cost control, and personnel motivation. Represents independent electrical contractors to the National Electrical Code panels. Conducts surveys on volume of sales and purchases and on type of products used. Has formulated National Pattern Standards for Apprentice Training for Electricians

Independent Liquid Terminals Association (ILTA)  
1133 15th Street, N.W., Suite 650 
Washington, DC 20005 
(202) 659-2301 
Fax: (202) 466-4166 
E-Mail: jprokop@ilta.org  
URL: http://www.ilta.org  

International trade association which represents commercial operators of for-hire bulk liquids terminals and tank storage facilities located in North and South America, Europe, Asia, the United Kingdom, Australia, New Zealand and South Africa. These terminals interconnect with and provide services to the various modes of bulk liquid carriers, namely ocean-going tankers, tank barges, tank trucks, tank rail cars, and pipelines. The commodities handled include a variety of chemicals, crude oil, petroleum products, asphalt, animal fats and oils, vegetable oils, molasses, spirits, and fertilizers.

Independent Lubricant Manufacturers Association (ILMA)  
651 South Washington Street 
Alexandria, VA 22314 
(703) 684-5574 
Fax: (703) 836-8503 
E-Mail: ilma@ilma.org  
URL: http://www.ilma.org  

Independent compounders and blenders of automotive, industrial, and metal working lubricants and greases. Associate members are base stock, additive, and packaging equipment suppliers. Conducts educational and regulatory compliance programs. Represents industry before Congress and Federal regulatory agencies and interacts with other industry groups. Compiles statistics, publishes monthly newspaper, and maintains enforceable Code of Ethics. 

Independent Petroleum Association of America (IPAA)  
1201 15th Street NW, Suite 300 
Washington, DC 20005 
(202) 857-4722 
Fax: (202) 857-4799 
URL: http://www.ipaa.org  

Members include independent oil and gas operators, royalty owners, and others (suppliers, drilling contractors, bankers, oil attorneys, trucking contractors, and rig building contractors) interested in the production of crude oil and natural gas. Represents small oil and natural gas producers in legislative and regulatory areas at the Federal level. Maintains speakers' bureau and compiles statistics.

Institute of Electrical and Electronics Engineers, Inc. (IEEE)
IEEE History Center
Rutgers - The State University
39 Union Street
New Brunswick, NJ 08901-8538
(732) 932-1066
Fax: (732) 932-1193
E-Mail: history@ieee.org
URL: http://www.ieee.org/organizations/history_center/

The mission of the IEEE History Center is to preserve, research and promote the history of information and electrical technologies. The Center maintains many useful resources for the engineer, for the historian of technology, and for anyone interested in the development of electrical and computer engineering and their role in modern society. Kindly note that the History Center is not a Museum. We do not maintain artifacts and exhibits! We are solely a research facility! Visiting scholars and researchers are welcome to use our research library and archives, by appointment only!

International Association of Drilling Contractors (IADC)  
P.O. Box 4287 
Houston, TX 77210-4287 
(281) 578-7171 
Fax: (281) 578-0589 
E-Mail: info@iadc.org
URL: http://www.iadc.org  

Membership comprises land and offshore drilling contractors, major and independent oil-and-gas producing companies, equipment manufacturers, oil field service and supply firms, and training facilities. Represents the global drilling industry before legislative and regulatory bodies at the State, Federal, and international levels. Compiles statistics on active rotary drilling rigs worldwide and on drilling safety. Publishes periodicals, reference books, training manuals, and forms. Conducts educational and professional meetings and seminars. There are more than 20 chapters worldwide, with headquarters in Houston, TX, and other offices in Washington, DC, Aberdeen, Scotland, the Netherlands, and Oman.

Interstate Natural Gas Association of America (INGAA)  
10 G Street, N.E., Suite 700 
Washington, DC 20002 
(202) 216-5900 
Fax: (202) 216-0827 
URL: http://www.ingaa.org  

Trade association representing interstate natural gas pipelines in the United States and interprovincial pipelines in Canada. INGAA's members account for over 90 percent of the natural gas sold or transported in interstate commerce in the United States.

Interstate Oil and Gas Compact Commission (IOGCC)  
P.O. Box 53127 
Oklahoma City, OK 73152-3127 
(405) 525-3556 
Fax: (405) 525-3592 
E-Mail: iogcc@iogcc.state.ok.us  
URL: http://www.iogcc.state.ok.us  

Represents the governors of 36 states - 29 member and seven associate states - that produce virtually all the domestic oil and natural gas in the United States, and four international affiliates. The organization’s mission is to promote the conservation and efficient recovers of domestic oil and natural gas resources, while protecting health, safety, and the environment.