- Part 1: Core
- Part 2: Extension for Coordinate Reference Systems (by reference)
- Transactions
- Locking
- 2D geometries not included in Simple Features
- 3D geometries
- GML application schemas
- other CRS than geodetic WGS 84 may be used as the default CRS
- return other CRS than the default CRS
- support for resolve=local
- Queries (dependency to FES)
- GetProperty
- GetDomain
- Manage feature types
- Stored queries
- Manage stored queries
- Units of measure
- ...
- Users Guide