D has been accepted at UW COE. It seems one applies for a major in the sophomore year. How difficult is it to get aero & astro? If one does not like it and wants to change to say, chem engg, how difficult is that?
Here are some resources to help answer your questions:
https://www.engr.washington.edu/admission/freshman/engrudwelcome
https://www.engr.washington.edu/admission/department/comparemajors
Undergrad Engineering Advising
301 Loew Hall
206-543-1770
engradv@uw.edu