For industry information, contact

12930 Worldgate Dr., Ste. 200
Herndon, VA 20170-6037
Tel: (888) ASK-PMMI
Tel: (571) 612-3200
https://www.pmmi.org

Although field service technicians are usually not unionized, maintenance technicians and assemblers may be, depending on union activity at a particular company. For information about the GMP Council: Glass, Molders, Pottery, Plastics and Allied Workers, contact the United Steelworkers.

60 Boulevard of the Allies
Pittsburgh, PA 15222
Tel: (412) 562-2400
https://www.usw.org/union/mission/industries/glass

For information on certification and the packaging industry, contact

12930 Worldgate Drive, Suite 200
Herndon, VA 20171
Tel: (571) 266-4403
Email: info@iopp.org
https://www.iopp.org

For information about the International Association of Machinists and Aerospace Workers, contact the organization directly.

9000 Machinists Place
Upper Marlboro, MD 20772
Tel: (301) 967-4500
https://www.goiam.org

For information about the International Brotherhood of Teamsters, contact the organization directly.

25 Louisiana Avenue, N.W.
Washington, DC 20001
Tel: (202) 624-6800
https://teamster.org

For information about the International Longshore and Warehouse Union, contact the organization directly.

1188 Franklin Street, 4th Floor
San Francisco, CA 94109-6800
Tel: (415) 775-0533
Fax: (415) 775-1302
https://www.ilwu.org

For information on certification, contact

1420 King Street
Alexandria, VA 22314-2794
Tel: (888) 476-4238
Email: cert@nicet.org
https://www.nicet.org

For information on educational programs, contact

Tel: (937) 269-5085
Email: mdwerneke@earthlink.net
https://www.niphle.com