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The National Conservation Lands Database contains data on the location and nature of private lands protected and/or managed for conservation purposes in Australia. This data set was created as part of a collaborative project between the data contributors and the Australian Government. The project was governed by a Steering Committee with representatives from five of the nine data contributors listed below. These acronyms are used in the remainder of the data. The program that contributed the data is described in the Completeness section of the metadata.DEC: Western Australian Department of Environment and Conservation DECCW: New South Wales Department of Environment, Climate Change and WaterDEH: South Australia Department of Environment and Heritage - now the Department of Climate Change, Energy, the Environment and Water and Natural ResourcesDERM: Queensland Department of Environment and Resource ManagementDPIPWE: Tasmania Department of Primary Industries, Parks, Water and EnvironmentNCT: New South Wales Nature Conservation Trusts Covenanting program NRETAS: Northern Territory Department of Natural Resources, Environment, the Arts and Sport Covenanting ProgramNTA WA: The National Trust of Australia (WA) TFN: Trust For Nature (Victoria) This 2009 (first) version of the database includes the majority of high security mechanisms operating on private land in Australia, where conservation is the sole or key objective. The data set contains all agreements from the inception of the program through which they were delivered to (and including) those established on the 30 June 2009. The department intends to annually update the database.The database contains:- an NCLD_DESC table - that contains descriptions of each agreement- an NCLD_POLY feature class - that contains all the agreement polygons- a NCLD_LABEL layer - that contains one point for each agreement that fits within an agreement polygon- a NCLD_OVERLAP_POLY feature class -that contains all agreement polygons that overlapped higher level agreement polygons. This is explained below.The polygons in this data set represent the land subject to private land conservation agreements. Each agreement is uniquely identified by AGREMT_ID. There are two polygon layers associated with the database. The principle layer is called the NCLD_POLY feature class and contains polygons of the location of the agreements. Where there are overlapping agreements, the most secure agreement is represented in the polygon layer and those agreements that were of lower security and overlapped, have been removed from the agreement polygon layer and stored in the NCLD_OVERLAP_POLY feature class. The NCLD_POLY feature class and the NCLD_OVERLAP_POLY feature class attribute table that the AGREMT_ID and few other fields. The descriptive details of each agreement are stored in the NCLD_DESC table including the GIS_AREA for the convenience of calculating statistics. This text table can be linked to the polygon layers for GIS analysis. The attributes of the NCLD_DESC table are described in the Attribute Accuracy section of this metadata. Many of the attributes are the same as those used in the Collaborative Australian Protected Area Database .In order to facilitate topology checking and analysis the NCLD_POLY feature class does not contain overlapping polygons. Overlapping agreements do occur in practice, where there is more than one agreement legally still in place at a time. To capture this information the polygon data has been processed to represent the highest security agreement at any one location in the agreements polygon layer. Agreements that are completely displaced by a higher security agreement have the value in the OVERLAP field in the text table, a GIS_AREA of 0 (zero) and the entire polygon represented only in the NCLD_OVERLAP_POLY feature class. Agreements that are only partially displaced have the displaced portion of the polygon(s) in the NCLD_OVERLAP_POLY feature class. In the agreements text table