TWIC BALTIMORE PORT ESCORT SERVICE LOGISTICS, INC.,  WORKS WITH OUR CUSTOMERS WHOSE SHIPMENTS ARE NOW  HELD UP AT THE ENTRANCE TO THE PORT OF BALTIMORE . TRUCK DRIVERS WHO DO NOT HAVE  TWIC  CARDS FOR PORT ENTRY WILL NOT BE GRANTED PASSAGE ON THE PROPERTY OF THE MARYLAND PORT AUTHORITY.  THIS NEW  REQUIREMENT HAS BEEN MANDANTORY SINCE  JAN. 2009.  PLEASE CALL: 410.591.3019 FOR IMMEDIATE ASSISTANCE.