# OGC KML 2.2

Source: https://xmlvalid.com/schemas/kml-2.2

> Placemarks, paths and polygons for Google Earth and other map viewers.

KML became an OGC standard with version 2.2. The schema imports the Atom author/link elements and the OASIS xAL address schema, both included here.

- Type: XSD
- Version: 2.2.0
- Namespace: `http://www.opengis.net/kml/2.2`
- Root element: `kml`
- Publisher: Open Geospatial Consortium (OGC legal notice), source: https://schemas.opengis.net/kml/2.2.0/
- Validate against it: https://xmlvalid.com/validate?schema=kml-2.2

## Notes

- Google extensions in the gx: namespace are not part of the OGC schema; documents that use them may be reported invalid.
- KMZ files are zip archives; unzip and validate the doc.kml inside.