There are certified  agencies that verify and evaluate the transcripts and certificates from foreign schools and colleges. After they verify the certificates, you can always submit those certified copies they send you ( or u can forward it to the universities u intend to enroll). As told by others, it depends on the universities and their policies. Some of them do accept the sealed transcripts from the universities like TU, but they evaluate it and its not sure if all ur credits will be transferred.I used this agency called spantran to evaluate my certificates. I am not into masters and PhD but that's what I know about evaluation of foreign academic certificates.Some colleges require this but some of them evaluate themselves.