Scope and Contents Per the most recent retention schedule (adopted 2008 December 9), this file classed as part of the series: Background information files (BDSU-0100). Records in this series are described as: Background info on matters before the Board of Supervisors. Includes: feasibility studies, maps, plans, correspondence, Notices and affidavits of publication and posting, environmental impact report proposals, legal opinions, ordinances and resolutions from other political agencies, etc. Affidavits of...