Although member-driven, OGC publications extend our impact globally—capturing shared expertise and driving geospatial innovation worldwide. OGC Standards are internationally recognized specifications that let different systems exchange information seamlessly. They are organized by functional area (e.g., data discovery, organization). The functional capabilities of the Web Service Standards are now available as more modern web APIs. Implementers are encouraged to use these newer OGC API Standards. Standards that take advantage of modern web development practices such as JSON, REST, and OpenAPI. GeoAPI Implementation Specification OGC API – Common OGC API – Environmental Data Retrieval OGC API – Features OGC API – Moving Features OGC API – Processes OGC API – Records OGC API – Tiles SensorThings API OGC API – Connected Systems OGC API – Discrete Global Grid Systems Standards that implement XML Remote Procedure Calls using the HyperText Transfer Protocol (HTTP). 3D Portrayal Service Coordinate Transformation Service Location Service (OpenLS) Table Joining Service Web Coverage Processing Service (WCPS) Web Coverage Service Web Feature Service Web Map Context Web Map Service Web Map Tile Service Web Processing Service Web Service Common Web Services Security Data Models and Encodings - Domain Specific Standards that provide domain specific rules to organize geospatial information. Augmented Reality Markup Language 2.0 Bathymetric Attributed Grid (BAG) Geoscience Markup Language (GeoSciML) Indoor Mapping Data Format (IMDF) LandInfra / InfraGML LAS Specification LAZ Specification Model for Underground Data Definition and Integration (MUDDI) PipelineML Conceptual and Encoding Model Points of Interest (POI) TimeseriesML (TSML) WaterML 2: Part 4 – GroundWaterML 2 (GWML2) Data Models and Encodings -General Standards that provide general rules to organize geospatial information, typically sent by a service provider or produced by an application. Cloud Optimized GeoTIFF Common Query Language (CQL2) EO Dataset Metadata GeoJSON(-LD) Filter Encoding Geodetic data Grid eXchange Format (GGXF) Geography Markup Language (GML) Geospatial User Feedback (GUF) GML in JPEG 2000 for Geographic Imagery Indexed 3D Scene Layers (I3S) Moving Features Observations, Measurements, and Samples Open GeoSMS – Core Open Modelling Interface (OpenMI) Simple Feature Access – Part 1: Common Architecture Simple Feature Access – Part 2: SQL Option

Simple Features for CORBA Simple Features for OLE/COM Styled Layer Descriptor Symbology Conceptual Core Model Symbology Encoding Time Ontology in OWL Training Data Markup Language for Artificial Intelligence Two Dimensional Tile Matrix Set Well-known text representation of coordinate reference systems Publish - Subscribe, Syndication & Context Standards for subscription management and other syndication purposes. OGC API – EDR – Part 2: Publish-Subscribe Workflow OGC Web Services Context Document (OWS Context) Publish/Subscribe Standards to accessing sensors that are connected to the Web or the Internet of Things (IoT). SensorThings API Semantic Sensor Network Ontology Sensor Model Language (SensorML) Sensor Observation Service Sensor Planning Service (SPS) STAplus: Sensor Things API Extension SWE Common Data Model Encoding SWE Service Model Implementation OGC API – Connected Systems Standards for searching and finding geospatial resources. Catalogue Service Catalogue Services Standard 2.0 Extension Package for ebRIM Application Profile: Earth Observation Products GeoSPARQL – A Geographic Query Language for RDF Data Ordering Services Framework for Earth Observation Products SpatioTemporal Asset Catalog (STAC) Standards that specify rules for storing and retrieving geospatial information efficiently. Hierarchical Data Format Version 5 (HDF5®) network Common Data Form (netCDF) standards suite Zarr Storage Specification Abstract Specification A reference model used in the development of OGC Standards. Abstract Specification The ModSpec Model OGC Standard for Designing and Writing Modular Standards Other Information This section provides supporting information, guidance, and resources to help users understand and implement the standard effectively. COSI Initiatives COSI Initiatives explore and evaluate future geospatial technologies. Initiative outcomes are detailed in public reports and other deliverables; these are not approved standards documents. Other Publications We produce several other types of reports that can be referred to in understanding issues of interoperability; these are not approved standards documents. Knowledge & Learning From introductory content to developer resources, we are committed to delivering the learning needed to work with, code and implement, OGC standards. Choose from these available learning resources: OGC API Workshop. Learn how to use modern OGC APIs for the discovery, access, visualization and processing of geospatial data. Location Innovation Academy. Learn how to make the most out of geospatial platforms and how to integrate geospatial data and services. Some modules are available in English and Spanish. Policies & Procedures We institute and follow a set of policies and procedures to fulfil our remit, publishing OGC’s methodology for doing business in the interest of transparency and trust. Common Definitions We work to standardize the language of the geospatial industry. OGC’s Registry for Accessible Identifiers of Names and Basic Ontologies for the Web ( OGC RAINBOW ) is an online vocabulary developed to foster a common understanding of concepts defined either by OGC or by communities that ask us to host them on their behalf. And in the OGC Schema Repository , the order, types and labels of information that describe geospatial datasets are specified. We also maintain a Glossary of Terms to promote use of common terminology. Open Calls and Requests Members of the public can review candidate standards and share feedback to ensure they are practical and widely applicable. OGC Seeks Public Comment on Proposed OGC Coverage Implementation Schema (CIS) 1.2 September 12, 2026 12:00 AM Coverage Implementation Schema , Geospatial Interoperability , Request For Comments , Web Coverage Service August 13, 2026