Copyrights & Disclaimers
Links to the NTP websites are welcomed. Unless a copyright is indicated, information on the NTP website is in the public domain and may be copied and distributed without permission. Citation of NTP as the source of the information is appreciated. If a copyright is indicated on a photo, graphic or other material, permission must be obtained from the original source.
Reference in the NTP website to any specific commercial products, process, service, manufacturer, or company does not constitute its endorsement or recommendation by the U.S. Government, NTP, or the National Institute of Environmental Health Sciences. NTP is not responsible for the contents of any off-site web page referenced by the NTP website.