BLANKET PURCHASE AGREEMENT (BPA) CALL TO PROVIDE DEVELOPMENT AND DELIVERY SERVICES FOR A VARIETY OF DEVELOPMENTAL TRAINING ACTIVITIES AND TRAINING SESSIONS FOR THE VOLPE NATIONAL TRANSPORTATION SYSTEMS CENTER. ALL SERVICES WILL BE PROVIDED IN ACCORDANCE WITH BPA DTRT5717A90001 FOR THE PERIOD OF MAY 31, 2017 THROUGH SEPTEMBER 30, 2017.