The service SHERPA/RoMEO provides information about the copyright and open access self-archiving policies of scientific journals. They use a color-coding system to classify publishers according to their archiving policy.
|ROMEO colour||Archiving policy|
|green||can archive pre-print and post-print or publisher's version/PDF|
|blue||can archive post-print (ie final draft post-refereeing) or publisher's version/PDF|
|yellow||can archive pre-print (ie pre-refereeing)|
|white||archiving not formally supported|