Page ContentInteractive map layers are available via LIST (Land Information Systems Tasmania), to assist in interpreting the sewage discharge rules. The maps are based on Parts 2, 3 & 4 of the Directive on the Discharge of Sewage from Certain Vessels into State Waters and should be viewed in conjunction with the Directive.Map layers on LIST can be accessed via the links belowPart 2 – Discharge of sewage that is not disinfected from vessels carrying less than 16 persons.Part 3 – Discharge of any sewage from vessels carrying 16 or more persons.Part 4 – Discharge of disinfected sewage from vessels carrying less than 16 persons.