diff --git a/content/reference-data-api.md b/content/reference-data-api.md
index b500d40836..9811b859aa 100644
--- a/content/reference-data-api.md
+++ b/content/reference-data-api.md
@@ -3913,7 +3913,8 @@ Optionally, you can provide the following query parameters:
 | `descending` | Boolean | If true, return results in reverse chronological order. Defaults to false. |
 | `limit` | Integer | Maximum results per page. Defaults to 20. Cannot be more than 1,000. |
 | `marker` | String  | [Pagination](#pagination) key from previously returned response. |
-| `format` | String  | Format of returned results: `csv` or `json`. Defaults to `json`. |
+
+**Note:** This method cannot return CSV format; only JSON results are supported for raw RCL transactions.
 
 
 #### Response Format ####
diff --git a/reference-data-api.html b/reference-data-api.html
index 650c2bff9b..51e51cab98 100644
--- a/reference-data-api.html
+++ b/reference-data-api.html
@@ -5854,13 +5854,9 @@ Content-Type: image/svg+xml
 <td>String</td>
 <td><a href="#pagination">Pagination</a> key from previously returned response.</td>
 </tr>
-<tr>
-<td><code>format</code></td>
-<td>String</td>
-<td>Format of returned results: <code>csv</code> or <code>json</code>. Defaults to <code>json</code>.</td>
-</tr>
 </tbody>
 </table>
+<p class="devportal-callout note"><strong>Note:</strong> This method cannot return CSV format; only JSON results are supported for raw RCL transactions.</p>
 <h4 id="response-format-38">Response Format</h4>
 <p>A successful response uses the HTTP code <strong>200 OK</strong> and has a JSON body with the following:</p>
 <table>