diff --git a/bblocks-config.yaml b/bblocks-config.yaml
index ec21ad3dd..0baf32326 100644
--- a/bblocks-config.yaml
+++ b/bblocks-config.yaml
@@ -2,13 +2,25 @@ name: OGC Main
 abstract:
 description: |
   
-  The OGC Building Blocks register provides an overview of a series of building blocks managed by the OGC community, including published standards,  
+  The OGC Building Blocks register provides an overview of a series of building blocks managed by the OGC community through a variety of processes:
+  
+  - formal standards publication processes the Standards Working Groups
+  - agreements with other international standards bodies
+  - commmunity hosted examples of re-use (profiles and extensions of OGC standards)
+  - informal "incubator" processes where more than one project needs a solution, and appropriate SWG scope is yet to be determined
+  
   ![](https://lucid.app/publicSegments/view/9d075f82-8611-4f32-83eb-994143669cc8/image.png)
 identifier-prefix: ogc.
 
+Notes:
+
+1. Policies are in preparation for naming and governance of these sub-registers, and this is subject to change pending adoption of such policies.
+1. Building Block identification will be designed to support transition between governance domains without change using symbolic references.
+1. A formal definition of Building Blocks and the level of "granularity" they represent with respect to the OGC Modular Specification is TBD.
+
 imports: []
 
 sparql:
   push: https://defs-dev.opengis.net/fuseki/data
   graph: https://blocks.ogc.org/
-  query: https://defs-dev.opengis.net/fuseki/query
\ No newline at end of file
+  query: https://defs-dev.opengis.net/fuseki/query