For the initial departmental review, required application documents may be scanned copies of official documents that were issued by your school's Registrar or ETS scores website for GRE and TOEFL. 
Copies of unofficial transcripts are not acceptable. 

For priority review, all supporting data, such as transcripts, and GRE and TOEFL scores, must be uploaded to your application no later than January 15. 

These can be uploaded to the “Documents” section of the grad school application. 

If you are admitted, the Graduate School will notify you about how to deliver final official transcripts directly to Oregon State University.  You will need to make arrangements with ETS to have your official GRE and TOEFL scores sent directly to Oregon State by ETS.

The School of MIME will not accept scanned copies of recommendation letters; they must be received by way of the OSU Graduate School's online application system.