Modular Building Institute

http://www.modular.org

North Dakota Petroleum Council

www.ndoil.org

American Petroleum Institute

www.api.org

International Association of Drilling Contractors

http://www.iadc.org

Independent Oil and Gas Association of West Virginia

www.iogawv.com

Manufacturers Association for Relocatable Structures

www.marsassociation.ca

International Code Council

www.iccsafe.org