Local government has been working in a concerted manner over the past 15 years to build the national address and street gazetteers and manage their Local Land and Property Gazetteers and Local Street Gazetteers.
This ‘jargon buster' describes the terms that are in common parlance within local authorities, and what they mean by them.
A Street whose main function is to give access to properties rather than provide a through route.
ACI (Address Change Intelligence)
Generic term used to identify all address change created within a local authority which shall be captured within an LLPG (Local Land and Property Gazetteer) function to ensure the gazetteer is maintained as the single corporate address change intelligence resource for the DCA (Data Cooperation Agreement) Participating Authority.
Object referenced by an address for inclusion in the LLPG (Local Land and Property Gazetteer). See also BS 7666-2:2006, page 1, section 3.1, for definition.
Address Layer 2
Address Layer 2 (AL2) is a deprecated data set provided by Ordnance Survey. Address Layer 2 links any property address to its location on the map. It provides precise coordinates for more than 27 million residential and commercial properties in Great Britain. On 31 October 2014, formal notice of withdrawal was issued for Address Layer 2 and Address Layer.
A number and / or name in common use but not approved by the SNN Authority for the LPI (Land and Property Identifier) associated with the BLPU (Basic Land and Property Unit). See also BS 7666-2:2006, page 12, section 7.5.3, table 7 for description.
ANS (Achieved National Standard)
ANS (Achieved National Standard) When a local authority achieves national standard within the Improvement Schedule that they have signed up to. Also referred to as 'At' or 'Above' National Standard
BLPU (Basic Land and Property Unit)
BNS (Below National Standard)
BOAT (Byway Open to All Traffic)
A Byway with rights for all vehicles. Section 66(1) of the Wildlife and Countryside Act 1981.
A Street which is assigned a classification prescribed in legislation (M, A or B Roads) or which has been declared to be "Classified" by the Local Highway Authority (C Roads). Any other locally devised classifications do not make a Street into a Classified Road.
Section 12 of the Highways Act 1980.
Section 27 (4) of the Local Government Act 1966.
Also see - https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/315783/road-classification-guidance.pdf (accessed December 2015)
A Street which no longer exists for the purposes of the New Roads and Street Works Act 1991and which is closed in the LSG by the Authority Street Custodian. A Street cannot be closed merely because it is no longer passable to traffic or has no BLPUs associated with it. If highway rights remain on a Street then it is still open and those rights must be stopped up before the Street is considered to be closed.
New Roads and Street Works Act 1991.
Dependent upon the type of the field being mandatory or optional for the data to be present.
The types and forms of the surfacing layers that shape the structure of the street.
Code of Practice, Specification for the Reinstatement of Openings in Highways (SROH)
In the GeoPlace Data Entry Conventions, a County Council is a local authority that does not have an SNN (Street Naming and Numbering) Authority function but does have a Local Highway Authority function.
Any designated marked or signed route for cyclists. It may be any combination of Cycle Track, cycle lane or Cycle Way as well as other Roads or Paths with no specific provision for cycles.
A highway for cyclists and pedestrians which is maintainable at public expense.
Any Way designed for the use of cycles and from which other wheeled traffic is excluded. The term does not imply the existence of public rights, although it is possible that they exist.
The source of the Application Cross Reference. An external dataset that is linked to or provides a source of ACI.
DCA (Data Cooperation Agreement)
Issued by GeoPlace to all district, county and Unitary councils in England and Wales. It provides a legally binding agreement between the parties to support the creation and maintenance of GeoPlace databases (particularly related to address and street information for England and Wales and address information for Scotland through separate agreements).
DCA Address Updates
DCA Participating Authority address information supplied to GeoPlace.
DCA-DECTWG (Data Cooperation Agreement - Data Entry Convention Technical Working Group)
DCA Street Updates
A map maintained by a Surveying Authority providing details of certain Public Rights of Way.
Section 48 of the Countryside and Rights of Way Act 2000.
The Surveying Authority's legal record of Public Rights of Way.
Highways Act 1980
Wildlife and Countryside Act 1981
DfT (Department for Transport)
The DfT works with its agencies and partners to support the transport network that helps the UK's businesses and gets people and goods travelling around the country.
A lower tier level of local government in England, below a County and above a parish. An authority that does have an SNN (Street Naming and Numbering) Authority function but does not have a Local Highway Authority function.
The operational district responsible for maintaining a street.
DTF (Data Transfer Format)
Comma Separated Value specification used to transfer data to and from GeoPlace.
GeoPlace DTF7.3 for Addresses is the current version.
GeoPlace DTF8.1 for Streets is the current version.
A value on the X axis of the National Grid of Great Britain. Captured to a 1cm resolution.
Police car, ambulance or fire engine.
EMS (Electoral Management System)
Software application for managing Electoral Registration data.
Date on which a Record ceased to be active. See also BS 7666-2:2006, pages 6 and 9, sections 6.1 and 7.2 for descriptions.
Date on which a Record was entered into an LLPG or LSG. See also BS 7666-2:2006, pages 6 and 9, sections 6.1 and 7.2 for descriptions.
Environmentally Sensitive Area
A type of designation for an area of land which needs special protection because of its landscape, wildlife or historical value.
ESU (Elementary Street Unit)
A Record used to spatially define a Street between nodes and / or junctions.
EToN (Electronic Transfer of Notifications)
A specification for the automatic transfer of information about proposed Street works. See Technical Specification for the Electronic Transfer of Notifications v6.
A public footpath, bridleway or restricted byway which was but is now no longer recorded on the Definitive Map.
Wildlife and Countryside Act 1981. Countryside and Rights of Way Act 2000.
A defined area in a database record into which an item of data or value is entered.
In the GeoPlace Data Transfer Formats: a comma separated text file or XML file transferred as a COU or Full Supply.
FOIA (Freedom of Information Act)
The Freedom of Information Act 2000 and any subordinate legislation made under this Act from time to time together with any guidance and/or codes of practice issued by the Information Commissioners in relation to such legislation.
A Way for pedestrians only. Also known as a Pedestrian Way or Walkway. Excludes Footway.
A part of a Highway segregated for pedestrians only. See Section 66 of the Highways Act 1980.
FRS(s) (Fire and Rescue Service(s))
FTP (File Transfer Protocol)
A file with all the records contained within an LLPG or LSG (Local Land and Property Gazetteer or Local Street Gazetteer).
A file with all the records contained within an LLPG or LSG (Local Land and Property Gazetteer or Local Street Gazetteer).
Real world location or fixed Object used to assist in the description of a Street or BLPU (Basic Land and Property Unit). This can be an area name or location, a settlement, a property name or number.
GeoHub is the unification of the core address and streets datasets GeoPlace maintain. It is a system that provides a single source for all addressing and street data requirements.
A public sector limited liability partnership between the Local Government Association and Ordnance Survey.
GeoPlace Address Custodian
The person or persons employed by GeoPlace responsible for the compilation of DCA Address Updates from each LLPG.
GeoPlace Street Custodian
The person or persons employed by GeoPlace responsible for the compilation of DCA Street Updates from each LSG.
GIS (Geographic Information System)
A system which displays digital imagery or mapping.
GMS (Gazetteer Management System)
A system for managing a corporate property or street gazetteer.
HA1980 (Highways Act 1980)
An Act to consolidate the Highways Acts 1959 to 1971 and related enactments, with amendments to give effect to recommendations of the Law Commission.
HAPAS (Highway Authorities' Product Approval Scheme)
A nationally recognised approval scheme for products and systems used in highway works.
HAUC(UK) (Highways Authority and Utility Committee(UK))
HAUC(UK) brings highway authorities, utilities and government together with the aim of working safely and smartly to reduce the impact of street and road works.
A Record at the start of each COU or Full Supply transfer file.
A set of conformance and data quality checks undertaken by GeoPlace and reported to the Authority Address and Street Custodian.
Heavy Commercial Vehicle
A legislative term for a Heavy Goods Vehicle. A vehicle with a weight of over 7.5 tonnes. See also Heavy Goods Vehicle.
Height, Width, Weight Designation
A record of the height, weight or width of a physical object associated with a street.
Height, Width, Weight Restriction
The specific type of restriction.
HGV (Heavy Goods Vehicle)
HGV. An HM Revenues and Customs taxation term for a vehicle with a weight of over 3.5 tonnes. In everyday use, any heavy vehicle. This term is not used in road traffic legislation. See also Heavy Commercial Vehicle and Large Goods Vehicle.
Section 238 (4) of the Income Tax (Earnings and Pensions) Act 2003.
High Amenity Footway
A footway which has a special surface and which is constructed and maintained to a high standard.
High Duty Footway
A footway designated as a principal route and used by an exceptionally large number of pedestrians or cyclists.
Any Way over which there is a public right of passage.
Any authority responsible for a Highway to be Maintainable at Public Expense. See also 'Local Highway Authority', 'National/Regional Highway Authority', and 'Highway to be Maintainable at Public Expense'.
Sections 1, 2 and 3 of the Highways Act 1980.
Makes a street a highway and the description of who is allowed to use it.
Highway Maintainable at Public Expense
A Highway which existed before 31st August 1835 or which is adopted by the Highway Authority since that date. Note: other Highways are maintained by public bodies which do not fall within this definition.
Section 36 of the Highways Act 1980.
The new government company set up in 2015 and charged with driving forward motorways and major A roads. This includes modernising and maintaining the highways, as well as running the network and keeping traffic moving.
Historical BLPU (Historical Basic Land and Property Unit)
A record that has been marked by the Authority Address Custodian as a BLPU not considered existing as an Object.
See also BS 7666-2:2006, page 8, section 6.5.3, table 4 for description.
Historical LPI (Historical Land and Property Idendifier)
A record that has been marked by the Authority Address Custodian as an LPI that is considered not to be current.
See also BS 7666-2:2006, page 12, section 7.5.3, table 7 for description.
HMO (House in Multiple Occupation)
For full definition, see Appendix J of the DEC-Addresses, found in the Library of the GeoPlace website.
HRWG (Highways Records Working Group)
ICE (Institute of Civil Engineers)
The ICE supports civil engineers and technicians by awarding professional qualifications, ensuring they work to high standards, and helping them to develop their careers. Its work also includes many other activities, from inspiring school students about civil engineering to influencing government investment in infrastructure.
IDeA (Improvement and Development Agency)
The body formed in 1998 as the Improvement and Development Agency for local government to work in partnership with all councils in England and Wales, to serve people and places better, to enhance the performance of the best local government authorities, accelerate the speed of improvement of the rest, and develop the sector as a whole. The IDeA has been subsumed into the Local Government Association.
The Authority Street Updates Improvement Schedule is designed to provide a framework for each Participating Authority to plan improvement to their address and/or street data over a financial year. Each financial year Quality Criteria Rating are consulted upon, reviewed and then appropriately set for the following year to reflect improvement. This process is undertaken with the agreement of the Regional Chairs Address and Street Groups and the Authority Contacts Executive. The objective of the Authority Street Updates Improvement Schedule is to improve the quality of address/street data year on year.
INSPIRE (Infrastructure and Spatial Data in Europe)
The INSPIRE Directive requires the Commission to establish a community geo-portal and the Member States shall provide access to their infrastructures through the geo-portal as well as through any access points they themselves decide to operate.
Internal Administrative Boundary
A parish or a ward boundary.
IPR (Intellectual Property Rights)
Intellectual Property Rights means patents, trademarks, design rights (whether registrable or otherwise), applications for any of the foregoing, copyright, database rights, know how, topography rights, rights of confidence, trade or business names and other similar rights or obligations, whether registrable or not in any country.
IPROW (Institute of Public Rights of Way)
A professional body which represents over 300 individuals who are involved in the management of Public Rights of Way in England, Wales and Scotland
ISMS (Information Security Management Systems)
The governing principle behind an ISMS is that an organization should design, implement and maintain a coherent set of policies, processes and systems to manage risks to its information assets, thus ensuring acceptable levels of information security risk.
ISO (International Organization for Standardization)
ISO is an independent, non-governmental membership organization and the world's largest developer of voluntary International Standards.
ISWG (Improvement Schedule Working Group)
A technical working group made up of local authority Custodians who work together to produce proposals, content indicators and measures for annual improvement schedules.
ITN (Integrated Transport Network)
Part of the Ordnance Survey MasterMap suite of products. ITN shows the geometry of 550,000 km of motorways, roads and urban paths.
Khub (Knowledge Hub)
The Knowledge Hub is a professional online networking place where members exchange knowledge to improve public services and produce social value. As the UK's largest platform for public service collaboration Knowledge Hub helps members and communities to freely connect, share knowledge, develop initiatives and share expertise in a secure environment.
LAID (Local Authority Identification)
A unique 4 digit identifier assigned by central government to each local authority. Used for information exchange between central and local government. For a list of LAIDs, see Appendix B Section 1 of the GeoPlace DEC-Addresses. Also known as Local Custodian Code.
In the GeoPlace DEC-Addresses, a Lane is one of the following:
A narrow road.
A rural road.
Part of a road delineated by road markings, for example a bus lane or a cycle lane.
A part of a road over which a rental scheme applies.
Sections 74, 74A and 74B of the New Roads and Street Works Act 1991.
A scheme which gives companies who need to close specific part of Streets, to complete highway works, describing financial incentives to make sure it is carried out in a less disruptive way.
See Section 74A of the New Roads and Street Works Act 1991 (inserted by section 255 of the Transport Act 2000).
Large Goods Vehicle
A European legislative term. See also 'Heavy Goods Vehicle'.
Last Update Date
Date on which a Record was last modified.
A place where a railway crosses a Road on a level. See Level Crossings Act 1983.
LGA (Local Government Association)
The LGA is the national voice of local government, working with councils to support, promote and improve local government. It is a politically-led, cross-party organisation that works on behalf of councils to ensure local government has a strong, credible voice with national government. We aim to influence and set the political agenda on the issues that matter to councils so they are able to deliver local solutions to national problems.
LGIH (Local Government Information House Limited)
LGIH worked with local government to develop national geographical and spatial information infrastructure projects (company registration number: 03490270).
LHA (Local Highways Authorities)
A highway authority with responsibility for compiling the List of Streets for its area and submitting level 3 street records for its area to the NSG.
See Sections 1, 2, 3 and 36 (6) of the Highways Act 1980.
In the GeoPlace DEC-Addresses, a series of coordinate points between two locations.
List of Streets
A list of highways which are within the area of the Local Highway Authority and which are Highways Maintainable at Public Expense. The origins of the List of Streets lie in public health legislation of 1925 and originally there was only a requirement to hold a list for urban areas; the present obligations were set out in the Highways Act 1980. Some highways are recorded on the List of Streets because they were publicly maintainable highways before 1835. Others were added as a result of later adoptions of one kind or another
See Section 36 of the Highways Act 1980.
LLC (Local Land Charges)
A Local Authority function which forms part of the property conveyance process.
LLP (Limited Liability Partnership)
A limited liability partnership is a partnership in which some or all partners (depending on the jurisdiction) have limited liabilities. It therefore exhibits elements of partnerships and corporations. In an LLP, one partner is not responsible or liable for another partner's misconduct or negligence
LLPG (Local Land and Property Gazetteer)
The local authority address dataset which is used to supply DCA Address Updates.
LLPG Custodian (Local Land and Property Gazetteer Custodian)
Now known as Authority Address Custodian. See 'Authority Address Custodian'.
A boundary of a local authority, for example a district authority.
The necessity to consider objects or living people as part of a request to undertake works.
Local Custodian Code
See 'LAID (Local Authority Identification)'.
Local Maintenance Agreement
An agreement between two Local Highway Authorities to undertake works on behalf of the other.
LPI (Land and Property Identifier)
A textual description of a BLPU (Basic Land and Property Unit). See also BS 7666-2:2006, page 2, section 3.5 for definition.
LSG (Local Street Gazetteer)
The local authority street dataset which is used to supply DCA Street Updates (Data Cooperation Agreement Updates).
Within the GeoPlace DTF current version: a field which must be completed.
Statement made by data provider of content or quality of data.
A Street with a tarred or other solid surface.
A type or form of junction control at which vehicles circulate around a white reflectorized central circular road marking (central island) of between 1 and 4 metres in diameter.
Mini roundabouts good practice guide published by the DfT and County Surveyors Society. For full details see https://www.gov.uk/government/publications/mini-roundabouts (accessed October 2015).
The most common type of Special Road which is restricted to two classes of vehicles. See also Special Road.
See Schedule 4, classes I & II of the Highways Act 1980.
MRN (Major Road Network)
National/Regional Highway Authority
An authority with the responsibility for maintaining public Streets and Streets in their administrative area. An authority which can submit ASD to the NSG but cannot do the following:
Submit a level 3 Street Record.
Compile the List of Streets for the Highways which it maintains.
Be a Surveying Authority.
See sections 1, 2 and 3 of the Highways Act 1980.
NCR (National Cycle Route)
A national network of cycle routes designated by Sustrans. NCR numbers have no statutory basis.
Within the GeoPlace DEC-Addresses, one of the following:
A Road or Path network.
A Network controlled by a Local Highway Authority traffic manager.
Sections 16 and 17 of the Traffic Management Act 2004.
A value on the Y axis of the National Grid of Great Britain. Captured to 1cm resolution.
Electronic message sent under the EToN process to notify works. See Technical Specification for the Electronic Transfer of Notifications. Currently v6.
NRSWA (New Roads and Street Works Act 1991)
The primary legislation for the co-ordination of street works.
NSG (National Street Gazetteer)
The compilation of a list of street information maintained in local authorities and supplied as DCA Street Updates to GeoPlace by Authority Street Custodians.
NSG User (National Street Gazetteer User)
A statutory undertaker of street works duties as defined under the New Roads and Street Works Act 1991 (NRSWA) and by the Department for Transport (DfT).
A real world entity associated with land and property.
OD file (Operational District Data file)
A data file giving details of all operating organisations in a given area.
A combination of name or number in the LPI and associated Street Name that is officially approved by the SNN Authority.
An area of a Street Authority allocated for Street Works.
OWPA (Object without a Postal Address)
An Object such as recreation ground, open space, public convenience, church or car park that does not receive mail but needs to be recorded within an LLPG.
PAF® (Postcode Address File)
A file maintained by Royal Mail for the purposes of the delivery of mail.
PAO (Primary Addressable Object)
PROW (Public Right of Way)
One of the following:
A synonym for a Highway, that is, any Way over which there is a public right of passage including those Ways for which there is no statutory method for recording their existence.
One of the four rights recordable on the Definitive Map:
Byway open to all traffic.
See Section 66 of the Wildlife and Countryside Act 1981.
QMS (Quality Management System)
A Quality Management System is a collection of business processes focused on achieving quality policy and quality objectives to meet customer requirements. It is expressed as the organizational structure, policies, procedures, processes and resources needed to implement quality management.
RAUC (Scotland) (Roads Authorities and Utilities Committee (Scotland))
The Roads Authorities and Utilities Committee (Scotland) provides, at a national level, co-ordination and an overview of activities carried out on roads under the 'Street Works' element of the New Roads & Street Works Act 1991 (NRSWA) as amended by the Transport (Scotland) Act 2005.
The criteria to bring back a Street to its original construction state.
Rejected BLPU (Rejected Basic Land and Property Unit)
A Record that is marked by the Authority Address Custodian as a BLPU that has an incorrect description of a real world Object.
See also BS 7666-2:2006, page 8, section 6.5.3, table 4 for description.
Rejected LPI (Rejected Land and Property Identifier)
A Record that is marked by the Authority Address Custodian as an LPI that has an incorrect description of a real world Object.
See also BS 7666-2:2006, page 12, section 7.5.3, table 7 for description.
Rights for Cyclist Access
The use of a Street for cycling.
Rights for Equestrian Access
The use of a Street for riding a horse.
Rights for Motorised Vehicle Access
The use of a Street by all types of motor vehicle.
Rights for Non-Motorised Vehicle Access
The use of a Street by non-motorised vehicles.
Rights for Pedestrian Access
The use of a Street for people on foot.
A Way for vehicles.
RPC (Representative Point Code)
RUPP (Road Used as a Public Path)
SAON (Secondary Addressable Object Name)
A number and / or a name for the LPI associated with the BLPU. See also BS 7666-2:2006, page 1, section 3.1, for definition.
SED (Special Engineering Difficulty)
A minor road for providing services to properties.
An authority responsible for sewers.
SNN (Street Naming and Numbering)
Street Naming and Numbering Function performed by an SNN Authority under the statutory legislation, responsible for the approval of all Street Names, property name and numbering schemes within that SNN Authority administrative area.
A District or Unitary with an SNN responsibility.
Officer at an SNN Authority responsible for SNN.
A Record that defines the status of a Street with respect to works. A category of ASD. Also known as a type 63 Record.
An event that happens only occasionally on the Street.
A Highway over which the rights are limited to a selection of eleven possible prescribed classes.
See also Sections 16 to 20 of the Special Roads Act 1949. Schedule 4 of the Highways Act 1980.
The maximum speed a motor vehicle can legally travel on a Street.
An organisation with legal powers to carry out works on a highway, for example a utilities company. See Section 49 of the New Roads and Street Works Act 1991.
A network of strategic routes across England and Wales managed by Highways England, Transport for London and the South Wales Trunk Road Agent (SWTRA) and North & Mid Wales Trunk Road Agent (NMWTRA).
Defined in the GeoPlace DEC-Addresses as one of the following:
As described in the New Roads and Street Works Act 1991: a highway, road, lane, footway, alley, passage, square or court.
As described in Towns Improvement Clauses Act 1847 s3: any road, square, court, alley, and thoroughfare.
As described in BS 7666-1:2006, page 2, section 3.7.
See Section 48 of the New Roads and Street Works Act 1991, and Section 3 of the Towns Improvements Clauses Act 1847.
The authority, body or person liable to maintain a Street. If the Street is publicly maintainable then it is a Highway Authority. Also known as Street Works Authority.
See Section 49 of the New Roads and Street Works Act 1991.
Defined in the GeoPlace DEC-Addresses as data associated with a type 11 or a type 15 Record.
Defined in the GeoPlace DEC-Addresses as Text associated with the description of a type 2, 3, 4 or 9 Street in the ASG.
See also BS 7666-1:2006, page 2, section 3.8 for definition.
All Fields associated with the type 15 Record in the DTF current version.
The provision of lighting on the public Highway.
See also BS 5489 2003 and BS EN 13201 2003.
An authority, body or person liable to the public to maintain or repair a street which is not a publicly maintainable highway or, if there is none, an authority, body or person having the management or control of the street.
See also Section 49 (4) of the New Roads and Street Works Act 1991.
Official text approved by the SNN Authority used to describe a type 1 Street.
Text used to describe a BLPU which represents the entire Street.
A value that indicates whether a name, description or number has been used to identify a Street or part of a Street. This Street type may be recorded numerically with a code of 1, 2, 3 or 4. A code of 9 is also permitted within the ASG.
See also BS 7666-1:2006, page 11, section 6.7.2, table 4 for definition.
Street Works Authority
See 'Street Authority'. Also see Section 49 of the New Roads and Street Works Act 1991.
A pedestrian underpass beneath a Street.
The authority responsible for maintaining the Definitive Map of Public Rights of Way. See Wildlife and Countryside Act 1981.
A Public Right of Way which has been legally diverted by the Surveying Authority on a temporary basis. Section119 of the Highways Act 1980.
TfL (Transport for London)
The authority responsible for London's overall transport network.
TMA (Traffic Management Act 2004)
An act which details Street works regulations.
An unsurfaced Street (except in Cycle Track, which has a specific legal meaning and has no connotation about the nature of the surface).
The authority, body or person having the control or management of a transport undertaking. See Section 91(1A) of the New Roads and Street Works Act 1991.
Transport Authority Critial Apparatus
Facilities located in the Street for use by the Transport Authority.
TRO (Traffic Regulation Order)
A legal instrument by which traffic management controls are implemented. Road Traffic Regulation Act 1994.
TRSG (Trunk Roads Street Gazetteer)
A gazetteer produced by Highways England parallel to the NSG.
A Street designated as such by the DfT. Usually a major arterial route. Trunk Roads Act 1936.
TSS (Traffic Sensitive Street)
A Street which is designated as critical to the flow of traffic in the area. This designation is for the purposes of Street works. Section 64 of the New Roads and Street Works Act 1991.
In the GeoPlace DEC-Addresses this describes the legal status of a PRoW where the rights are being challenged. See the Wildlife and Countryside Act 1981.
In the GeoPlace DEC-Addresses this describes the legal status of a PRoW where the rights are being formally consulted upon. See the Wildlife and Countryside Act 1981.
Unique Address Reference Number (UARN)
Defined in the GeoPlace DEC-Addresses as a local authority that has an SNN Authority function and a Local Highway Authority function.
Universal Postal Union (UPU)
The Universal Postal Union (UPU) establishes the rules for international mail exchanges among its member states.
UPU's website: http://www.upu.int/en.html
UPRN (Unique Property Reference Number)
USRN (Unique Street Reference Number)
A unique identifier assigned to each Street within an LLPG and LSG. DTF current version. See also BS 7666-1:2006, page 7, section 6.2 for description.
Valuation Office Agency (VOA)
Water Services Regulation Authority (Ofwat)
Ofwat's website: http://www.ofwat.gov.uk/