It should apply to both. I got to a page which 'listed' all the programs I had applied to. I put that in quotes because the list had one entry in it. I think that page works for any program you have applied to at U Maryland.
No, I found it! You go back into your online application on ARPA and access your supplementary app. There you click on Verify Contact Information on the left, and on this page you can see your UID. PIN is your date of birth in the format mmddyy. I'm still in the running!
I saw in the results page that several people have been able to view their decision online on this page: http://www.testudo.umd.edu/apps/gradapp/. How do you know what your UID is? I went over all the emails I have received from Maryland, and I couldn't find such a thing.