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<p>Some things have to be mailed in (transcripts and SAT/ACT scores, and AP/IB scores if you want). The rest of the application can be completed online or through email. You can fill out the main application online and upload your essay as part of the application. You can email in your resume of activities. For the LoRs I think all you need to provide is an email address for each teacher/advisor and they will get a link where they can email in or upload their letter.</p>