The International Union of Operating Engineers provides information about careers, apprenticeships, and vocational training.

1125 17th Street, NW
Washington, D.C. 20036-4786
Tel: (202) 429-9100
https://www.iuoe.org

The National Association of Power Engineers provides educational courses, training, and other resources for power engineers.

One Springfield Street
Chicopee, MA 01013-3065
Tel: (413) 592-6273
Fax: (413) 592-1998
Email: nape@powerengineers.com
https://www.powerengineers.com

The National Association of Stationary Operating Engineers provides information about licensing and certification for stationary engineers

212 Elmwood Avenue Extension, Suite 500
Gloversville, NY 12078-5905
Tel: (518) 620-3683
https://www.national-engineers.org