diff --git a/json-schema/radar/product.json b/json-schema/radar/product.json
deleted file mode 100644
index 077404a..0000000
--- a/json-schema/radar/product.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  
-}
\ No newline at end of file
diff --git a/json-schema/radar/source.json b/json-schema/radar/source.json
deleted file mode 100644
index 077404a..0000000
--- a/json-schema/radar/source.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  
-}
\ No newline at end of file
diff --git a/radar-source.md b/radar-source.md
index 31614a8..e02d2f6 100644
--- a/radar-source.md
+++ b/radar-source.md
@@ -1,6 +1,8 @@
 # CEOS-ARD for Radar - Source Data <!-- omit in toc -->
 
-- **Identifier:** <https://stac-extensions.github.io/ceos-ard/v0.2.0/radar/source.json>
+- **Scope:** Item, Collection
+- **Extension [Maturity Classification]:** Proposal
+- **Owner**: @m-mohr
 
 This extension specifies how to create [STAC] Items for Source Data that
 comply to the [CEOS-ARD product family specifications] (PFS) for radar sensors.
@@ -76,6 +78,7 @@ The fields can be provided either in the [Collection](radar.md#stac-collections)
 | platform    | 1.6.2 | **REQUIRED.** Satellite name in lower-case.                  |
 
 Requirement 1.6.2 asks to provide links to:
+
 - [CEOS Missions Database] record(s)
 - [CEOS Instruments Database] record(s)
 - [CEOS Measurements Database] record(s)
@@ -93,13 +96,9 @@ Requirement 1.6.2 asks to provide links to:
 
 ### Projection
 
-> \[!WARNING]  
-> **Deprecation Notice:** In a future version of the version of the projection extension `proj:epsg` will be replaced by `proj:code`.
-> It is recommended to provide both for now.
-
 | Field Name                            | Req.  | Description                                                  |
 | ------------------------------------- | ----- | ------------------------------------------------------------ |
-| proj:epsg / proj:wkt2 / proj:projjson | 1.6.7 | **REQUIRED**. Coordinate Reference System (CRS). One of the fields is required to be provided. |
+| proj:code / proj:wkt2 / proj:projjson | 1.6.7 | **REQUIRED**. Coordinate Reference System (CRS). One of the fields is required to be provided. |
 | proj:bbox                             | 1.7.7 | **REQUIRED**. The source data geometry in the given CRS. |
 
 ### SAR
diff --git a/radar.md b/radar.md
index b700526..1915404 100644
--- a/radar.md
+++ b/radar.md
@@ -1,11 +1,6 @@
 # CEOS-ARD for Radar <!-- omit in toc -->
 
-- **Title:** CEOS-ARD for Radar
-- **Identifier:**
-  - Product: <https://stac-extensions.github.io/ceos-ard/v0.2.0/radar/product.json>
-  - Source(s): see [Source Data](radar-source.md)
-- **Field Name Prefix:** -
-- **Scope:** Item
+- **Scope:** Item, Collection
 - **Extension [Maturity Classification]:** Proposal
 - **Owner**: @m-mohr
 
@@ -59,7 +54,7 @@ This profile doesn't define new STAC fields, it's just a profile that uses
 As the identifier for this profile is just a collection of existing extensions and only defines required fields,
 you get a good bit of validation already without providing the identifier/schema of this profile in `stac_extensions`.
 If your metadata is already compliant to this profile, you can omit the identifier for this profile in
-`stac_extensions` to avoid costly regeneration of the Items. You won't get validation whether all required 
+`stac_extensions` to avoid costly regeneration of the Items. You won't get validation whether all required
 fields are present, but this could be checked manually in the CEOS assessment/review.
 
 The following STAC extensions are relevant for this profile:
@@ -125,16 +120,12 @@ The fields can be provided either in the [Collection](#stac-collections) or in e
 
 ### Projection
 
-The metadata is **required** to specify the coordinate reference system through either `proj:epsg` or one of the alternatives.
-
-> \[!WARNING]  
-> **Deprecation Notice:** In a future version of the version of the projection extension `proj:epsg` will be replaced by `proj:code`.
-> It is recommended to provide both for now.
+The metadata is **required** to specify the coordinate reference system through either `proj:code` or one of the alternatives.
 
 | Field Name                            | Req.   | Description                                                  |
 | ------------------------------------- | ------ | ------------------------------------------------------------ |
-| proj:epsg / proj:wkt2 / proj:projjson | 1.7.11 | **REQUIRED**. One of the fields is required to be provided, recommended is `proj:epsg`. If there's no suitable EPSG code, set `proj:epsg` to `null` and add either `proj:wkt2` or `proj:projjson`. |
-| proj:bbox                             | 1.7.7  | **REQUIRED**. The bounding box of the acquisition in the projection defined in proj:epsg / proj:wkt2 / proj:projjson. |
+| proj:code / proj:wkt2 / proj:projjson | 1.7.11 | **REQUIRED**. One of the fields is required to be provided, recommended is `proj:code`. If there's no suitable CRS code, set `proj:code` to `null` and add either `proj:wkt2` or `proj:projjson`. |
+| proj:bbox                             | 1.7.7  | **REQUIRED**. The bounding box of the acquisition in the projection defined in proj:code / proj:wkt2 / proj:projjson. |
 
 ### Links