Participating Northeast and Piedmont return locations Valid 4/15-6/30/14 Region Zone ID City Southeast 08033 Atlanta Southeast 08984 Charleston Southeast 08986 Charlotte Southeast 08187 Knoxville Southeast 08389 Memphis Southeast 08387 Nashville Southeast 08055 New Orleans Southeast 08983 Raleigh Durham Valid 4/15-6/30/14 Region Zone ID City Northeast 08119 Boston Northeast 08022 Buffalo Northeast 08019 Hartford Northeast 08016 New York Northeast 08775 Philadelphia Northeast 08032 Pittsburgh Northeast 08578 Richmond Northeast 08025 Washington/Baltimore