The American Embassy in Berlin requires a vendor to conduct annual maintenance of sliding gates at one of their locations. This is a multi-year contract for one base year plus 4 options years. To requ... The American Embassy in Berlin requires a vendor to conduct annual maintenance of sliding gates at one of their locations. This is a multi-year contract for one base year plus 4 options years. To request the solicitation documents, prospective vendors should contact berlineinkauf@state.gov with the request number, PR15860163 in the subject line of the E-mail.