diff --git a/aep/general/0008/aep.md.j2 b/aep/general/0008/aep.md.j2
index da5504a2..a0fa24ef 100644
--- a/aep/general/0008/aep.md.j2
+++ b/aep/general/0008/aep.md.j2
@@ -231,6 +231,10 @@ subdirectory); this ensures that the link works both on the AEP site, when
 viewing the Markdown file on GitHub, using the local development server, or a
 branch.
 
+### Error codes
+
+When referencing a error code, the prose **should** use the format `{google.api.error_code} / {http_status_code}`. For example, `OK / 200`.
+
 ## Rationale
 
 ### Designing for a broad set of clients