FLT CREW OF SF34 DECLARES FUEL EMER FOLLOWING REJECTED LNDG AT IAD.

Narrative

PRIOR TO REACHING CRUISE ALT; WE WERE INSTRUCTED BY ZID TO RETURN TO CRW AS THE CTLR AT CRW SHOULD NOT HAVE RELEASED OUR FLT. WE WERE RELEASED FOR DEP DURING A GND STOP PROGRAM AT IAD THAT WE HAD NOT BEEN MADE AWARE OF. UPON REQUEST OF ZID TO RETURN TO CRW; WE NOTIFIED DISPATCH. DISPATCH APPROVED OUR RETURN TO CRW. WHILE INITIATING OUR APCH INTO CRW; THE APCH CTLR ISSUED A CLRNC TO IAD VIA L TURN 140 DEGS; JOIN THE JASEN 4 ARR. WITH RECEIPT OF THIS CLRNC WE NOTIFIED DISPATCH AND WERE GIVEN PERMISSION TO CONTINUE. CONSECUTIVELY OUR DISPATCHER AMENDED OUR RELEASE; AND ADDED AN ALTERNATE OF BWI. NO ALTERNATE WAS REQUIRED PER THE TERMINAL FORECAST FUEL AT THIS POINT 2150 LBS; XA50. WHILE BEING VECTORED FOR APCH AND LNDG; OUR FUEL WAS COMING INTO QUESTION WITH REGARD TO DIVERSION FUEL. 250 LBS OF FUEL NEEDED FOR THE DIVERSION WOULD LEAVE US WITH 1050 LBS REQUIRED. APPROX 70 MI FROM IAD; AN ADVISORY WAS MADE TO ATC ABOUT MINIMUM FUEL. THIS WAS MADE ALLOWING FOR A SAFE APCH AND DIVERSION TO BWI IF NECESSARY. AFTER BEING VECTORED FOR OUR APCH; WE WERE GIVEN LNDG CLRNC FOLLOWING AN AIRBUS 320. UNFORTUNATELY; THE AIRBUS WAS NOT ABLE TO EXIT THE RWY SAFELY; REQUIRING US TO PERFORM A GAR. THIS DISCONTINUED LNDG PROMPTED THE EMER DECLARATION IN THE INTEREST OF SAFETY AND ALLOWING OUR ACFT TO LAND WITH 1000 LBS REMAINING.