Maryland Truck Weigh and Inspection Stations (TWIS) …
Maryland Truck Weigh and Inspection Stations (TWIS) Vienna 410-548-5186 8525 Ocean Highway US 50 (EB) 410-548-5185 Delmar, MD 21875-2412: Maryland State Police West Friendship TWIS with permanent scale : 410-442-2495 P.O. Box 218: I-70 (WB) 410-489-5231 Fax: West Friendship, MD 21794
