It’s a codeshare limited to NY and BOS flights. So if AA is using RJs, they can carry B6 code. But there won’t be any AA regionals operating for B6. AA regionals can operate within the scope of AA, but not for say jetblue Express. That said, AA gave B6 slots in JFK and LGA (so lower total AA/AE flights), and Vasu has said there will be fewer RJs, so the net effect is likely more JB narrowbody flights and fewer outsourced RJs in the NYC/BOS area. That’s assuming there’s a recovery, and assuming this gets approved.