it's unclear exactly how the new rules will affect call for residents and students. most programs are coming up with their plans right about now to accommodate the new rules. of course, the new rules are for residents (mostly interns) and not for students, but students mostly follow the work patterns of residents because they function as part of the team.
to be honest, i'm not sure how the new system will work. as bad as 30 (they're really 30-32) hour calls are, i'm not sure how things will work if interns can't do 24+ hour shifts. even most night-float programs have traditional 30-hour calls on the weekends or at least periodically. it's also odd that upper-levels can do longer shifts, because teams generally consist of an upper-level, 1-2 interns, and 1-2 students. it may be a case where upper-levels do traditional 30 hour calls but interns switch halfway through the call period. shorter shifts for interns may help in some ways, but it may cause them to have fewer days off. i'm curious to see how it all plays out, and glad that my days of 80-hour weeks are behind me.