<p>In order: Yes, check here ([Stony</a> Brook University - Office of the Registrar](<a href=“http://stonybrook.edu/registrar/class-schedules.shtml]Stony”>http://stonybrook.edu/registrar/class-schedules.shtml)), U3 is Junior standing (>57 credits) and U4 is Senior standing (>87 credits), and yes, roughly… it’s just general academic level/rigor more than it is tied in with any specific class level.</p>
<p>Chris</p>