AASHTO / NSBA Steel Bridge Collaboration - http://www.steelbridge.org/ The mission of the Collaboration is to achieve quality and value in steel bridges by standardization of design, fabrication, and erection and by the sharing of resources.

American Segmental Bridge Institute - http://www.asbi-assoc.org/ The American Segmental Bridge Institute was incorporated in 1989 as a nonprofit organization to provide a forum where owners, designers, constructors, and suppliers can meet to further refine current design, construction and construction management procedures, and evolve new techniques that will advance fhe quality and use of concrete segmental bridges.

Association for Bridge Construction & Design - Northeast Ohio Chapter - http://www.crtechnologies.com/ Their mission includes improving and encouraging the science of bridge design and reconstruction by providing a forum for members to develop new ideas and techniques.

Association for Bridge Construction & Design - Pittsburgh Chapter - http://www.abcdpittsburgh.org/ Mr. Nalin H. Udani, Bridge Engineer for PennDOT, initiated the idea of the Association for Bridge Construction and Design. Together with people working in the bridge industry, he formed a founding committee in June of 1976 to establish a constitution and make specific recommendations for starting the Association.

Association for Bridge Construction & Design - Western New York Chapter - http://www.abcdwny.org/ Their mission is to improve and encourage the science of bridge design, construction, maintenance, and reconstruction by providing a forum for members to exchange and develop new ideas and techniques.

Illinois Road and Transportation Builders Association - http://www.irba.org/ The membership of the Illinois Road and Transportation Builders Association are the principals of the major companies in the heavy road, highway and bridge construction industry. These include not only the contractor firms themselves but those who supply goods and services to this industry.

Portland Cement Association - http://www.cement.org/ The Portland Cement Association and the Cement Association of Canada rely heavily on members to promote cement and concrete for paving, residential, engineered structures, and public works.

Stucco Manufacturers Association - http://www.stuccomfgassoc.com/ SMA is a non-profit trade association. Our main purpose is to promote the advantages of 3-coat colored cementitious stucco by educating the building industry and consumers.

Association of the Wall and Ceiling Industries International - http://www.awci.org/ The Association of the Wall and Ceiling Industries÷International represents acoustics systems, ceiling systems, drywall systems, exterior insulation and finishing systems, fireproofing, flooring systems, insulation, and stucco contractors, suppliers and manufacturers and those in the allied trades.

International Window Cleaning Association - http://www.iwca.org/ The International Window Cleaning Association is a non-profit trade association committed to raising the standards of professionalism within the window cleaning industry.

Power Washers of North America - http://www.pwna.org/ The Power Washers of North America is the recognized leader in developing and communicating the highest standards in ethical business practices, environmental awareness, and safety through continuing education and active representation of the membership.

National Air Duct Cleaners Association - http://www.nadca.com/ The National Air Duct Cleaners Association (NADCA), an active non-profit trade association, is dedicated to the continuous progression of the Heating Ventilation and Air Conditioning (HVAC) hygiene industry.

Sheet Metal & Air Conditioning Contractors National Association - http://www.smacna.org/ SMACNA members perform work in industrial, commercial, institutional and residential markets. They specialize in heating, ventilating and air conditioning; architectural sheet metal; industrial sheet metal; kitchen equipment; specialty stainless steel work; manufacturing; siding and decking; testing and balancing; service; and energy management and maintenance.

Sheet Metal & Air Conditioning Contractors National Association - Pennsylvania Chapter - http://www.smacnapa.org/ SMACNA's Mission is to provide products, services, & representation to enhance members' businesses, markets & profitability.

The United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada - http://www.ua.org/ "UA" as it is commonly known is a multi-craft union whose members are engaged in the fabrication, installation and servicing of piping systems. There are approximately 326,000 highly-skilled United Association members who belong to 321 individual local unions across North America.

The World Plumbing Council - http://www.worldplumbing.org/ The objective of the WPC is to unite the world plumbing industry to safeguard and protect the environment and the health of nations, for the benefit of all.

United Association - LOCAL 230 Plumbers, Steam Fitters, HVAC, & Apprentices - http://www.unionpipepros.org/ The United Association of Plumbers and Steam-fitters has serviced the pipe trades for over 100 years through training and labor management partnerships.

Interstate Oil and Gas Compact Commission - http://www.iogcc.state.ok.us/ States have established effective regulation of the oil and natural gas industry through a variety of IOGCC programs designed to gather and share information, technologies and regulatory methods.

Louisiana Independent Oil and Gas Association - http://www.lioga.com/ LIOGA was organized to represent the independent sector of the oil and gas industry in Louisiana. Our primary goal is to provide our industry with a working environment that will enhance the industry. Creating incentives for industry, warding off tax increases, changing existing, burdensome regulations and educating the public and government of the importance of the oil and gas industry in the state is what we do for our membership.

Louisiana Mid-Continent Oil and Gas Association - http://www.lmoga.com/ The Louisiana Mid-Continent Oil and Gas Association represents all sectors of the oil and gas industry operating in Louisiana and the Gulf of Mexico.

Maine Oil Dealers Association - http://www.meoil.com/ Maine's 230 heating oil dealers serve more than 415,000 customers. Here you can learn more about safe, affordable, clean oil heat and the companies and their 8,000 employees who deliver goods and services valued at more than $1 billion annually to Maine citizens.

Alberta Roofing Contractors Association - http://www.arcaonline.ca/ ARCA's mission is to serve the Alberta roofing industry by providing leadership through the development and promotion of standards, education and professional delivery of roofing services.

Chicago Roofing Contractors Association - http://www.crca.org/ CRCA's mission is to establish and endeavor to maintain a high standard of business ethics and conduct among its members and to encourage such feelings among all others associated with the roofing industry.

National Roofing Contractors Association - http://www.nrca.net/ The Association remains a strong supporter of open competition and the free enterprise system; indeed, this competitive environment has led to the success of its member firms. NRCA members recognize that the perpetuation of such a healthy business environment is greatly influenced by their own professional conduct.

Roofing and Sheet Metal Contractors Association of Georgia - http://www.rsmca.org/ The Roofing and Sheet Metal Contractors Association of Georgia was established in 1950 to serve the needs of the roofing industry by providing information on products, installation techniques, government regulations, building and energy codes and other topics of importance.

Roofing Contractors Association of Texas - http://www.rooftex.com/ The Roofing Contractors Association of Texas (RCAT) is a statewide trade association of roofing and waterproofing contractors. This group of professionals collectively represents the voice of the roofing and waterproofing industry in Texas.

San Diego Roofing Contractors Association - http://www.sdrca.org/ The San Diego Roofing Contractors' Association has been serving the Roofing Industry for over forty years. It is the intent of this Association to establish and maintain professional standards and practices in the Roofing Industry through education and public awareness.

Stone Roofing Association - http://www.stoneroof.org.uk/ Association dealing with limestone and sandstone slate roofing materials.

Shipbuilders & Shiprepairers Association - http://www.ssa.org.uk/ The Shipbuilders & Shiprepairers Association (SSA) represents the industry in the UK. It exists to further the interests of its members, encourage & facilitate business improvement and to promote the industry generally.

Shipbuilders Council of America - http://www.shipbuilders.org/ SCA is the largest and most broad-based national trade association representing the U.S. shipyard industry that primarily builds, repairs and services America's fleet of commercial and small/mid-sized government vessels.

The Society of Naval Architects and Marine Engineers - http://www.sname.org/ SNAME is dedicated to advancing the art, science and practice of naval architecture, shipbuilding and marine engineering, encouraging the exchange and recording of information, sponsoring applied research, offering career guidance and supporting education, and enhancing the professional status and integrity of its membership.

United SteelWorkers of America - http://www.uswa.org/ The USWA represents over 700,000 working men and women throughout the United States and Canada. Our home page should be a useful tool to help our members and the general public learn about our Union and current issues of vital concern to working people around the globe.