North American Technical Excellence

http://www.natex.org/
http://www.tabbcertified.org
http://www.hvacexpertise.com
NATE is a leading certification program for technicians in the HVAC/R industry. NATE is an independent, non-profit national organization supported by a broad-based coalition of Industry leaders.

American Welding Society

http://www.aws.org
The American Welding Society (AWS) was founded in 1919 as a multifaceted, nonprofit organization with a goal to advance the science, technology and application of welding and related joining disciplines. From factory floor to high-rise construction, from military weaponry to home products, AWS continues to lead the way in supporting welding education and technology development to ensure a strong, competitive and exciting way of life for all Americans.

Missouri AFL-CIO

http://www.moaflcio.org
The Missouri AFL-CIO is comprised of unions in Missouri that are affiliated with the national American Federation of Labor - Congress of Industrial Organizations (AFL-CIO). The Missouri AFL-CIO represents over 500,000 union members and retirees in Missouri. Approximately 391 unions and councils are affiliated with the state federation.

International Training Institute

http://www.aflcio.org
As the federation of America’s unions, the AFL-CIO includes more than 13 million of America’s workers in 58 member unions working in virtually every part of the economy. Explore how the AFL-CIO works, our culture and history and learn more about our leadership. Don’t forget to subscribe to America@work—the AFL-CIO magazine with information and tools for activists and leaders.

Occupational Safety and Health Administration (OSHA)

http://www.osha.gov
OSHA’s mission is to assure the safety and health of America's workers by setting and enforcing standards; providing training, outreach, and education; establishing partnerships; and encouraging continual improvement in workplace safety and health.

Helmets To Hardhats

http://www.helmetstohardhats.org/home.jsp
Helmets to Hardhats is co-sponsored by all fifteen Building and Construction Trades organizations, as well as their employer associations, which together represent about 82,000 contractors. Labor leaders have embraced the program, eager to help U.S. soldiers, sailors, Marines and airmen transfer their experience and can-do attitudes into secure jobs within the construction industry.