Oklahoma State Department of Health
http://www.health.state.ok.us/program/ol/info.html#home

National Association of Certified Home Inspectors
http://www.nachi.org

National Association of Home Inspectors
http://www.nahi.org

American Society of Home Inspectors
http://ashi.org

American Institute of Inspectors
http://www.inspection.org/

Partnership for Response and Recovery
http://www.parrinspections.com/default.asp

Fema
http://www.fema.gov

Builder Central
http://www.buildercentral.com

Contractors State License Center
http://www.contractorscenter.com/pages/1/index.htm

Oklahoma Residential & Commercial Inspection Association (ORCIA).
http://www.orcia.org/content.aspx?IntroPlayed=1

Oklahoma Chapter of the National Association of Certified Home Inspectors
http://certifiedhomeinspections.info/chapters/oklahoma/?D=1