Please be advised the United States Department of Defense has announced it will conduct GPS tests in the Southeast during two separate time frames(now through Feb. 11, and Feb. 15-Feb. 22) that will temporarily disrupt navigation systems for commercial truck drivers and the general public. Also affected will be GPS-based telematics systems available from Penske Truck Leasing’s FleetIQ portfolio including: CyntrX, PeopleNet and Xata.