Archived Bid Invitations

Vendors conducting business with Washington County may need to be registered with the Maryland Department of Assessments and Taxation (SDAT). For information on whether registration is required Vendors should call SDAT at 410-767-1340.Washington County verifies the company’s status with SDAT and may require the successful bidder to submit a Good Standing Certificate, also known as a “Certificate of Status,” issued by the Maryland Department of Assessments and Taxation’s Charter Division, and State of Organization.