diff --git a/process/project_proposals.adoc b/process/project_proposals.adoc
index 06894ad..f910d56 100644
--- a/process/project_proposals.adoc
+++ b/process/project_proposals.adoc
@@ -7,6 +7,7 @@
  .. project description (what it does, why it is valuable, origin and history)
  .. statement on alignment with CNCF charter mission
  .. sponsor from TOC (sponsor helps mentor projects)
+ .. preferred maturity level (see https://github.com/cncf/toc/blob/master/process/graduation_criteria.adoc[CNCF Graduation Criteria])
  .. license (charter dictates http://www.apache.org/licenses/LICENSE-2.0[Apache 2] by default)
  .. source control (GitHub by default)
  .. external dependencies (including licenses)