If you received your education in the U.S. You do not need to use WES. WES is for people educated outside the U.S.
If you are going to school in Maryland and your previous education is in Qatar then you would need to use WES but only if the school requires it. The issue with WES is that they will sometimes ask you for more information and that puts your file on hold. Only once they receive the requested documents will they proceed with the your application. So it says 7 days but it could take months.
If you received your education in the U.S. You do not need to use WES. WES is for people educated outside the U.S.
If you are going to school in Maryland and your previous education is in Qatar then you would need to use WES but only if the school requires it. The issue with WES is that they will sometimes ask you for more information and that puts your file on hold. Only once they receive the requested documents will they proceed with the your application. So it says 7 days but it could take months.
I use to work for WES so feel free to PM me.