### An object of type "FeatureCollection" must have a member with the name "members".  The value corresponding to "members" is an array.  Each element in the array is a feature object as defined above.

### An object of type "FeatureCollection" must have a member with the name "members".  The value corresponding to "members" is an array.  Each element in the array is a feature object as defined above.

# A GeoJSON object may have an member with the name "crs".  If a GeoJSON object has a member named "crs", it is assumed to represent the coordinate reference system of the included geometry or geometries.  If a GeoJSON object does not have a member named "crs", it is assumed that the server and client have a mutual understanding about the coordinate reference system of the included geometries.  Clients may assume that a GeoJSON data structure without a member named "crs" contains geometries in a Geographic projection, in the WGS84 datum, with units in decimal degrees.

# A GeoJSON object may have an member with the name "crs".  If a GeoJSON object has a member named "crs", it is assumed to represent the coordinate reference system of the included geometry or geometries.  If a GeoJSON object does not have a member named "crs", it is assumed that the server and client have a mutual understanding about the coordinate reference system of the included geometries.  Clients may assume that a GeoJSON data structure without a member named "crs" contains geometries in a Geographic projection, in the WGS84 datum, with units in decimal degrees.