Línurnar sýna friðunarsvæði, þar sem eldi laxfiska (fam. salmonidae) í sjókvíum er óheimilt skv. auglýsingu nr. 460/2004.

Kjördæmi eru afmörkuð landsvæði sem mynda einn af grunnþáttum kosningakerfisins. Framboðslistar eru lagðir fram fyrir hvert og eitt kjördæmi þannig að kjósendur í sama kjördæminu geta valið á milli sömu framboðslistanna og kjörnir fulltrúar hljóta þar umboð sitt til þingsetu. Kjördæmaskipulagið og fjöldi kjósenda í hverju þeirra liggur til grundvallar þegar þingsætum er úthlutað eftir þingkosningar. Þar sem kjördæmaskipulagið er ráðandi fyrir vægi atkvæða kjósenda hefur það mikil áhrif á það hvaða frambjóðendur fá sæti á þingi að loknum kosningum. Kjördæmaskipulagið er því meðal þess sem oft hefur orðið að deiluefni. Þegar gerðar voru á því verulegar breytingar kostuðu þær jafnan pólitísk átök og allar hafa þær þýtt málamiðlanir milli ólíkra sjónarmiða. Tekið af vef Alþingis: https://www.althingi.is/thingmenn/althingiskosningar/kosningar-og-kosningaurslit/kjordaemaskipulagid/

Vatnajökull National Park was founded on June 7th 2008, although the act on Vatnajökull National Park was entered into force on May 1st 2007. It is the largest national park in Iceland by far, 14,967 km2. Vatnajökull National Park was inscribed as a UNESCO World Heritage Site on July 5th 2019. The boundary of Vatnajökull National Park, after its latest expansion on September 22nd 2021. The boundary is drawn in accordance to regulation on Vatnajökull National Park, No 300/2020, with later amendments. Disclaimer: If there is a difference between the data and the regulation text, then the regulation text applies. The data also includes all previous boundaries of the national park as well as current boundaries of operating areas.

The high resolution imperviousness products capture the percentage and change of soil sealing. Built-up areas are characterized by the substitution of the original (semi-) natural land cover or water surface with an artificial, often impervious cover. These artificial surfaces are usually maintained over long periods of time. A series of high resolution imperviousness datasets (for the 2006, 2009, 2012 and 2015 reference years) with all artificially sealed areas was produced using automatic derivation based on calibrated Normalized Difference Vegetation Index (NDVI). This series of imperviousness layers constitutes the main status layers. They are per-pixel estimates of impermeable cover of soil (soil sealing) and are mapped as the degree of imperviousness (0-100%). Imperviousness change layers were produced as a difference between the reference years (2006-2009, 2009-2012, 2012-2015 and additionally 2006-2012, to fully match the CORINE Land Cover production cycle) and are presented 1) as degree of imperviousness change (-100% -- +100%), in 20m and 100m pixel size, and 2) a classified (categorical) 20m change product. The production of the High Resolution Imperviousness products was coordinated by the European Environment Agency in the frame of the EU Copernicus programme. A verification of the Imperviousness layer was performed by the Institute of Nature Research during autumn of 2018 and the data and resulting report are made available on the NLSI websites.

Eftirfarandi landshlutar eru sóttvarnaumdæmi, sbr. reglugerð 387/2015: Höfuðborgarsvæðið (Reykjavíkurborg, Seltjarnarnesbær, Kópavogsbær, Garðabær, Hafnarfjarðarkaupstaður, Mosfellsbær, Kjósarhreppur og fyrrum sveitarfélagið Þingvallasveit). Vesturland (Akraneskaupstaður, Hvalfjarðarsveit, Skorradalshreppur, Borgarbyggð, Eyja- og Miklaholtshreppur, Snæfellsbær, Grundarfjarðarbær, Helgafellssveit, Stykkishólmsbær, Dalabyggð, Reykhólahreppur, Strandabyggð, Kaldrananeshreppur, Árneshreppur og Húnaþing vestra). Vestfirðir (Vesturbyggð, Tálknafjarðarhreppur, Ísafjarðarbær, Bolungarvíkurkaupstaður og Súðavíkurhreppur). Norðurland (Húnavatnshreppur, Blönduósbær, Skagabyggð, Sveitarfélagið Skagaströnd, Sveitarfélagið Skagafjörður, Akrahreppur, Fjallabyggð, Dalvíkurbyggð, Hörgársveit, Eyjafjarðarsveit, Akureyrarkaupstaður, Svalbarðsstrandarhreppur, Grýtubakkahreppur, Þingeyjarsveit, Norðurþing, Tjörneshreppur, Skútustaðahreppur, Svalbarðshreppur og Langanesbyggð að frátöldum fyrrum Skeggjastaðahreppi). Austurland (Vopnafjarðarhreppur, Fljótsdalshérað, Fljótsdalshreppur, Borgarfjarðarhreppur, Seyðisfjarðarkaupstaður, Fjarðabyggð, Breiðdalshreppur, Djúpavogshreppur og fyrrum Skeggjastaðahreppur). Suðurland (Sveitarfélagið Ölfus, Hveragerðisbær, Grímsnes- og Grafningshreppur, Bláskógabyggð að frátöldu fyrrum sveitarfélaginu Þingvallasveit, Hrunamannahreppur, Sveitarfélagið Árborg, Flóahreppur, Ásahreppur, Skeiða- og Gnúpverjahreppur, Rangárþing ytra, Rangárþing eystra, Mýrdalshreppur, Skaftárhreppur, Sveitarfélagið Hornafjörður og Vestmannaeyjabær). Suðurnes (Sandgerðisbær, Sveitarfélagið Garður, Reykjanesbær, Grindavíkurbær og Sveitarfélagið Vogar).

Ræktunarsvæði er afmarkað svæði sjávar nægjanlega stórt til að rúma þann ræktunarbúnað sem notaður er á viðkomandi svæði. Yfirleitt er um að ræða línur sem strekktar eru á milli flot bauja eða sérstaka ræktunarfleka með lóðréttar ræktunarlínur fáeina metra niður undir yfirborð sjávar . Svæðið er merkt með löglegum sjómerkjum þannig að sjófarendur eiga að geta varast þau, enda einnig merkt inn sjókort Landhelgisgæslunnar. Einungis er ræktuð Bláskel (Kræklingur).

Umsóknin um Þingvelli á heimsminjaskrá var lögð fram í febrúar 2003 og var hún samþykkt á fundi heimsminjanefndar UNESCO í júlí 2004. Þingvellir eru þjóðgarður sem var með lögum stofnaður árið 1930.

Boundaries of various areas within Vatnajökull National Park with special rules. 1. Esjufjöll, Jökulsárgljúfur, Skaftafell and Askja have special rules about camping restrictions, according to article 3, in regulation about Vatnajökull National Park, 300/2020. Coordinates are listed in table 2 in amendment IV in the regulation. 2. Hvannadalshnjúkur, Öræfajökull and Kverkfjöll have special limitations on, if and when motorized traffic is allowed. 3. Traditional land use areas are listed in article 26 of regulation about Vatnajökull National Park, 300/2020. Disclaimer: If there is a difference between the data and the regulation text, then the regulation text applies.

EuroBoundaryMap is a seamless geo-database at the scale 1:100 000 covering 55 countries. It contains geometry, names and codes of administrative and statistical units continuously updated by the members of EuroGeographics, the national mapping and cadastral authorities (NMCAs) of Europe. Updated annually. Datasets in EBM: The EBM dataset was derived from the Icelandic National Database IS 50V, which is at the scale 1:50.000. The generalization has been applied in form of smooth polygon and simplify polygon that ensured the required resolution of the data for the EBM 1: 100 000 scale. The topological relations of the line and area features were ensured. Administrative Units includes: AdministrativeBoundary a line layer containing the demarcations outlining administrative units. AdministrativeUnit_1 a polygon layer containing the national administrative hierarchy, Level 1 (republic). AdministrativeUnit_2 a polygon layer containing the national administrative hierarchy, Level 2 (municipalities). Residence of Authority a point layer containing the administrative centres of all administrative levels. BasicGeometry includes: EBM_A a polygon layer containing administrative areas. Here are the basic components on which administrative units of all hierarchical levels, as well as all statistical layers, are composed. EBM_P a point layer meant for labelling purposes. Label points are located within the main area of the administrative units on lowest level. StatisticalUnits includes: LAU a polygon layer = Local Administrative Unit. NUTS_1 a polygon layer = Nomenclature of Territorial Units for Statistics (whole country) NUTS_2 a polygon layer NUTS_3 a polygon layer = Nomenclature of Territorial Units for Statistics (capital area, rural areas) Tables in EBM: CountryCodes = all countries have unique country codes (icc). EBM_CHR = country codes of those countries where the language is used in alphabetical order delimited by #. EBM_coAdministered = Relationship between administrative unit and its co-administering administrative units on the same hierarchical level. A few countries have special areas with shared administrative units. EBM_ISN = designations of administrative hierarchical levels EBM_NAM = names of administrative units EBM_NUTS = Relationship between the SHN codes of administrative units on lowest national administrative level and corresponding statistical codes.

Línurnar sýna friðunarsvæði, þar sem eldi laxfiska (fam. salmonidae) í sjókvíum er óheimilt skv. auglýsingu nr. 460/2004.