The Authority was established by the Residential Tenancy Amendment Act 2005, the Act not being proclaimed until 1 July 2009.;;;;The purpose of the RDA is to hold all Tasmanian residential tenancy rental security deposits, excluding boarding premises, educational institutions, hospitals and nursing homes. The functions of the RDA are:;;- to accept, hold and disburse security deposits in accordance with the Act;;- to collect data on the residential tenancy market in Tasmania;;- to conduct public awareness campaigns to educate parties to residential tenancy agreements regarding their obligations.;;;;To perform these functions the Authority holds a register of bonds. Bonds are lodged with the RDA for the period of the tenancy, at the end of which, parties to the bond may lodge a claim for the funds.