SGN create 4 separate data layers (by pressure tier) to depict the location of their gas network: LP - Low Pressure (19 mbar - 75 mbar) MP - Medium Pressure (75mbar - 2 bar) IP - Intermediate Pressure (2 bar - 7 bar) HP - Regional High Pressure (>7 bar) The gas network data is up to date at the time of publication, but it is given without warranty as to the accuracy of the information shown. Service pipes, valves, siphons, sub-connections etc. are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by SGN or its agents, servants or sub-contractors for any error or omission. Should the user wish to excavate in the vicinity of pipelines, the User should visit SGN via sgn.co.uk/Safety/Dig-safely for further information. SGN use an on-line mapping system, accessible via the sgn.co.uk/Safety/Dig-safely web pages or linesearchbeforeudig.co.uk, this process should be used to obtain up to date maps and safety information before you excavate. However if you need more information please contact our Safety Admin team on 0800 912 1722 or by email: plantlocation@sgn.co.uk. For the avoidance of doubt, safe digging practices, in accordance with HS (G) 47, must be used to verify and establish the actual position of mains, pipes, services and other apparatus on site before any mechanical plant is used. It is your responsibility to ensure that this information is provided to all persons (whether direct labour or contractors) working for you on or near gas apparatus. Mains shown in the data are those owned by SGN by virtue of being a licensed Gas Transporter (GT). Gas pipes owned by other GT’s, or third parties, may also be present in the area and are not shown in the data. Information with regard to such pipes should be obtained from the relevant owners

Many Local Authorities capture locational details of certain safety features located across their area of jurisdiction. This dataset attempts to pull those features together into one single national dataset. It currently contains defibrillator, water access points, fire hydrant, lifebelt and CCTV locations where local authorities have provided them. It is likely that this dataset will be superseded and/ or conflated into a national emergency services gazetteer as and when that is created.

Whilst TPOs are a legal requirement they may not always be digitised accurately. Users of this data should not assume this data is totally accurate and should consult the specific local authority for more detail before making any decisions A TPO is made by the Local Authority, under Section 160 of the Town and Country Planning (Scotland) Act 1997, and within the procedures set out in the Town and Country Planning (Tree Preservation Order and Trees in Conservation Areas) (Scotland) Regulations 2010. They are made to protect individual trees, groups of trees or woodlands which have particular amenity value, make a significant contribution to the landscape or townscape or because there may be a potential threat to the trees. Deciding which trees qualify to become protected the local authority must ensure that the trees contribute to the amenity and attractiveness of an area and be under threat in some way. Either individual specimens or groups can be protected in a single Order. More information and guidance on Tree Preservation orders and Trees in conservation can be found in Planning Circular 1/2011. Which provides an overview of the TPO procedures, explaining how the requirements from the Act and Regulations fit together. Some local authorities capture polygons of tree preservation areas. Others will identify actual trees as point TPOs. Several LAs capture both. We have initially created two separate layers - point and polygon, to represent TPOs. This may show duplication where a point falls within a polygon. We may adapt this rationale and methodology in due course as we know that there is a discrepancy with Registers of Scotland's TPO data.

'Development management' is the name given to the process of deciding planning applications and various other associated activities including enforcement of planning controls. For the purposes of planning applications, development in Scotland is put into one of three categories – 'local', 'major' or 'national'. The different categories mean that applications are treated in a way which is suited to the size and complexity of the proposed development and the issues they are likely to raise. Most applications will be for 'local' developments. 'Major' developments include applications for 50 or more homes, certain waste, water, transport and energy-related developments, and larger retail developments. 'National' developments are specific projects which have been identified in the National Planning Framework because of their national importance. Scottish Ministers become involved in a small minority of cases, but only do so where it involves a matter of genuine national interest. This dataset consists of 3 separate layers: 1. Planning Applications - Weekly Lists (Points):  A point layer showing an amalgamation of the current calendar year's weekly lists for all Scottish planning authorities in terms of applications registered and/or decided by a planning authority. This should be a complete dataset across Scotland using X/Y co-ordinates, UPRN or postcode as corresponding geometry. This is categorised by application status, planning authority and date of weekly list. 2. Planning Applications - Weekly Lists (Polygons): A polygon layer showing an amalgamation of the current calendar year's weekly lists for most Scottish planning authorities in terms of applications registered and/or decided by a planning authority. This is only for authorities that publish site boundary mapping data online. This is categorised by application status, planning authority and date of weekly list. 3. Planning Applications - historic year layers (Polygons): Polygon layers for all previous year's planning applications with summary details for most Scottish planning authorities. This is only for authorities that publish site boundary mapping data online and is not complete across Scotland. This data is collected and published weekly (for weekly lists) and this metadata record is updated weekly. *Moray's planning data has currently been removed from this dataset. We will find a solution to this in due course*

Local authorities are required to conduct an annual survey of the housing land supply, 'the Housing Land Audit', to determine completions within the timeframe and update forecasts of the housing land supply. This, in turn, helps inform land releases within the Local Development Plan process. A five-year effective housing land supply is required at all times.

Local nature reserves are areas of (at least) locally important natural heritage, designated and managed by local authorities to give people better opportunities to learn about and enjoy nature close to where they live. They are found across the country, but generally close to towns and cities. More details are available here: http://www.snh.gov.uk/protecting-scotlands-nature/protected-areas/local-designations/lnr/ Where we have not been supplied with data by local authorities we are extracting it from a previously produced SNH national dataset.

The One Scotland Gazetteer is an address database made up of all 32 individual local authority gazetteers. All addresses are created in accordance with the national standard for addressing, BS7666:2006 and the Scottish Gazetteer Conventions. Key features include: Spatially referenced address records, Property lifecycle details, Full compliance to the Scottish Gazetteer Conventions.

Each local authority creates gritting routes and regimes to keep their most important roads (and in some cases footpaths) and networks clear come bad winter weather. Most LAs create these as line datasets. So the national dataset is a line format dataset. We now have two layers: one for road gritting and one for footpath. Some LAs collect this data as a polygon dataset. We are working with them to convert this into line formats in the future. We have removed trunk roads that are cleared by private companies e.g BEAR and AMEY from this dataset for the time being as they aren't currently under the LA gritting route regime. Eventually, the Street Gazetteer will enable us to identify these routes more accurately and coherently.

This dataset is an amalgamation of licenced SEPA & some Local Authority Septic Tanks in Scotland. Under section 79 of the Environmental Protection Act 1990 and Under part 6, section 37 of the Water Resources (Scotland) Act 2013 SEPA, Scottish Water and Local Authorities all have a responsibility for the registration, management and compliance of Septic Tanks within Scotland. The Scottish Assessors also currently identifies 678 septic tanks. These are tanks that serve more than one dwelling. Those that serve just one dwelling may be treated as an appurtenance of the dwelling i.e. they are classified as domestic and treated as being reflected in the Council Tax band. SEPA have approximately a quarter of the Septic Tanks mapped as it has only been a requirement since 2012 that when buying or selling a house that these get licenced. Scottish Water have partial information (not included as data not provided in a suitable format) and Scottish Assessors collect some as well (not included due to percieved licensing restrictions). SEPA, Local Authorities, Scottish Water and Scottish Assessors are keen to combine data to create a complete and comprehensive view of all Septic Tanks in Scotland.

A council development plan may designate a green belt around a city or town to support the spatial strategy by: - directing development to the most appropriate locations and supporting regeneration; - protecting and enhancing the character, landscape setting and identity of the settlement; and - protecting and providing access to open space. This dataset has been developed as a polygon layer.