There are several important steps that are not taken care of by the on-line application process. For example, international students must send in a Financial Resource Certification form, not yet available on-line. For those who prefer paper a paper application , the necessary materials can be downloaded in PDF format. There is no separate Departmental Application. Here is an very rough timeline of what happens once you send in your application materials.
Time is in weeks.
But you can't come, because you don't have enough money. If you have applied early and get a letter like this before the middle of March, this is not necessarily a final decision. The Department starts making GTA offers in early March, and you may still be in line for financial aid. As soon as an offer is made, the Graduate Studies Office will be notified and will issue the Certificate of Admission. Please understand that in some cases processing may take much longer than this.