This information can be found on the Tasmanian Fire Service Website http://www.fire.tas.gov.au/
Under submenu “Building Safety Unit” you will find “Evacuation Plans”.
This states an Evacuation plan is required “if you are an occupier of a specified building” and that “you are obligated under the General Fire Regulations 2010 to submit to the Chief Officer of the TFS, for approval, an Evacuation Plan (EP) for the evacuation of the building in the case of fire”.
Description of a Specified Building can be found at http://www.fire.tas.gov.au/Show?pageId=specifiedBuilding
If you have a Specified Building the Tasmanian Fire Service has guideline you can use to assist you with meeting the requirements. You can download the Fire Evacuation Plan Guidelines by clicking on the below link: http://www.fire.tas.gov.au/userfiles/stuartp/file/FireEvacuationPlanGuidelines_2_Jan2011.doc
Below is a link to the relevant legislation which can also be found on the Tasmanian Fire Service Website: https://www.legislation.tas.gov.au/view/html/inforce/current/sr-2010-136