You must properly attribute the original source for any material (text, tables, figures, photos, video, audio) that has been published previously including content that has been published in print, digitally or electronically. Attribution is NOT a substitute for permission to re-use.
If a work has been published previously and is not in the public domain, you must obtain permission to re-use it. For SETAC journals, obtaining permission is a simple process through the RightsLink service of the Copyright Clearance Center. Most publishers use a similar service or have their own permission forms available online. For other content, you will need to contact the source to obtain permission for re-use. Be sure that your request includes the educational purpose and the potential uses of the copyrighted material in your presentation: as a reprint in a handout and as a visual during your presentation.
Some people assume that materials published on a website or webpage are free to be copied or downloaded and re-used without attribution or permission. As with any other publication, that may or may not be true. What is certain is that you are responsible for determining whether permission is required, and you must obtain it where necessary. While SETAC cannot obtain permissions for you, we will be glad to answer questions.
Some government-published content, such as that by the US government, is in the public domain and requires attribution but not permission. However, many other governments publish materials that are not in the public domain; both attribution and permission are required for such content.
For questions, please contact firstname.lastname@example.org, SETAC publications manager