On 1 June 2017, the department updated various guidelines and assistance tools relating to security deposits and rehabilitation cost estimates (RCE). This included a new rehabilitation cost estimation tool. There was a staged implementation of the RCE tool with a seven month transition period between 1 June 2017 and 1 January 2018. This enabled title holders who had commenced preparing a RCE using the former ESB26: Schedule of rehabilitation costs to complete their RCE and raise appropriate security on this basis. From January 1 2018, title holders are to use the new RCE tool when preparing their next RCE.