Scope and Contents Per the most recent retention schedule (adopted 2008 December 9), this file classed as part of the series: Contracts and agreements (BDSU-0270). Records in this series are described as: Original contracts, agreements & leases approved by Board of Supervisors. Includes: notices, accepted bid documents, terms of agreements, plans, specifications, reports, studies, proof of insurance, change orders, extensions & modifications. (1872-present). Contracts and agreements can also be found...