Designation:F1846−98(Reapproved2014)StandardPracticeforSymbolsandMarkingsforUseWithLandSearchMaps1ThisstandardisissuedunderthefixeddesignationF1846;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversthesymbolsandmarkingstobeusedwithlandsearchmapstoshowresources,searchcoverage,status,andresults.1.2Operationalusageofthesesymbolsandmarkings,theresourcestheyrepresent,andmapsarenotincludedinthispractice.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1IncidentCommandSystemPublications:FieldOpera-tionsGuideICS-42023.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1basemap,n—themastermaporchartofthesearcharea,normallymaintainedattheincidentbaseorcommandpost.3.2baseoverlay,n—themapoverlayonwhichareplacedthesymbolsandmarkingsshowninFig.1whenitisdesiredtonotmarkonthebasemap.3.3mapoverlay,n—atransparentsheetplacedoverthebasemaponwhichmarkingsandsymbolsaremade.Overlaysareusedforsymbolssubjecttochange,topreventmarkingthebasemap,ortoavoidclutteringthebasemap.4.SignificanceandUse4.1Thebasemapandoverlaysareusedinmanagingasearchbygraphicallytrackingprogress,resourceallocation,andresults.Standardsymbolsandmarkingsallowapersontovisuallyscanthemaptoobtainthestatusofthesearchwithouttheneedforabriefingorreadingsearchdocuments.4.2Overlaysareusedforsymbolswhicharelikelytochangeduringthesearch,thatwillcoverothersymbolsorbasemapfeatures,topreventmarkingthebasemap,andtoavoidtoomanymarkingsatonetime.4.3Thesymbolsandcolorshavebeenchosentobecom-patiblewiththesymbolsdefinedinIncidentCommandSystemFieldOperationsGuideICS-420.Thiscompatibi...
