The information I know is that the only restriction is about speed.
Smaller jets can operate but non jets are restricted to the ones
which transports at least 35 passengers.
The main problem is the row for landing (a non jet will delay Boeings, Airbus, Embraer jets and others to wait so long for its landing) but for take off
prop aircraft need a different route or the others must wait more.
New York + Rio de Janeiro = One of the best combinations !