The sub-fonds includes operations policy and project support records from the following departments: the Transportation, Water, and Telecommunications Department (TWT) from 1978 to 1982; the Urban Projects Department (URB) from 1978 to 1982; the Water and Urban Development Department (WUD) from 1983 to 1986; and the Transportation Department (TRP) from 1983 to 1986. The sub-fonds also includes records related to liaison with external organizations, which were maintained by TWT from 1978 to 1983.