Use of Materials on the OEC Website

Materials posted to the OEC website remain the intellectual property of the author (except for materials in the public domain).

Materials Posted By OEC Contributors: OEC contributors are encouraged to make their materials available for the use of others on suitable terms, but use rights remain the within the discretion of the OEC Contributor. On individual resources pages, the terms of use and necessary credit/attribution requirements may be shown in the notes below the resource description. If an author has not specified use rights or proper credit/attribution requirements, or if a user wants to use the material in a way not specified, then users should contact authors directly for permissions and credit/attribution requirements. If no author is listed or the author cannot be reached, please contact the OEC Staff at

Materials Owned by the National Academy of Sciences for the National Academy of Engineering/OEC:  Except for products published by The National Academies Press, users may download, use, copy and distribute OEC materials for which NAS holds the copyright for the purpose of classroom use without further permission, provided that the materials are cited as noted for the material and credited as “Copyright National Academy of Sciences. Used with permission.”  For other uses, please contact the OEC Staff at  For permission to use materials published by The National Academies Press, please see:

See also the Terms of Use for this website. 

Cite this page: "Use of Materials on the OEC Website" Online Ethics Center for Engineering 12/6/2007 OEC Accessed: Wednesday, March 20, 2019 <>