http://www.com.state.oh.us/dico/OCILB.aspx -OHIO CONSTRUCTION INDUSTRY LICENSING BOARD – State of Ohio Pluming License information

http://www.lochinvar.com/sizingguide.aspx - Lochinvar Commercial Water Heater Sizing Program

http://www.navienamerica.com/customer/federal.aspx?skin=federal – Rebate Finder for Energy Star rated Navien Units

http://www.tracpipe.com/Technical/Windows_Specifier/ - Trac Pipe CSST Design Program for designing gas piping layouts using CSST pipe

http://www.moen.com/trade-resources/about-mcsp - Information on Moen’s Certified Service Plumber Program

http://www.phccohio.org/ - State Of Ohio chapter of the PHCC (Plumbing, Heating, Cooling Contractors) Association

http://www.mapic.org/index.html - Mechanical and Plumbing Industry Council  - Representing Union Plumbing and Pipefitting Contractors

http://publicecodes.citation.com/st/oh/st/OH-P-2005-000004.htm - International Code Council website listing State of Ohio Building, Residential, Plumbing, Mechanical, and Fuel Gas Codes.

http://www.oapi.org/index.html - Ohio Association of Plumbing Inspectors Website – Backflow information, code information, Ohio Plumbing Industry related links.