diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2c2e60c2..f5b578b7d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Unreleased
 
-* Add support for adding custom project permission for variable sets `ProjectVariableSetsPermission` by @netramali [21879](https://github.com/hashicorp/atlas/pull/21879)
+* Add BETA support for adding custom project permission for variable sets `ProjectVariableSetsPermission` by @netramali [21879](https://github.com/hashicorp/atlas/pull/21879)
 
 # v1.73.0
 
diff --git a/team_project_access.go b/team_project_access.go
index aaf99085a..36e9cda8d 100644
--- a/team_project_access.go
+++ b/team_project_access.go
@@ -69,8 +69,10 @@ type TeamProjectAccess struct {
 
 // ProjectPermissions represents the team's permissions on its project
 type TeamProjectAccessProjectPermissions struct {
-	ProjectSettingsPermission     ProjectSettingsPermissionType     `jsonapi:"attr,settings"`
-	ProjectTeamsPermission        ProjectTeamsPermissionType        `jsonapi:"attr,teams"`
+	ProjectSettingsPermission ProjectSettingsPermissionType `jsonapi:"attr,settings"`
+	ProjectTeamsPermission    ProjectTeamsPermissionType    `jsonapi:"attr,teams"`
+	// ProjectVariableSetsPermission represents read, manage, and no access custom permission for project-level variable sets
+	// This relation is considered BETA, SUBJECT TO CHANGE, and likely unavailable to most users.
 	ProjectVariableSetsPermission ProjectVariableSetsPermissionType `jsonapi:"attr,variable-sets"`
 }
 
@@ -106,6 +108,7 @@ const (
 )
 
 // ProjectVariableSetsPermissionType represents the permission type to a project's variable sets
+// This relation is considered BETA, SUBJECT TO CHANGE, and likely unavailable to most users.
 type ProjectVariableSetsPermissionType string
 
 const (
@@ -151,8 +154,9 @@ const (
 )
 
 type TeamProjectAccessProjectPermissionsOptions struct {
-	Settings     *ProjectSettingsPermissionType     `json:"settings,omitempty"`
-	Teams        *ProjectTeamsPermissionType        `json:"teams,omitempty"`
+	Settings *ProjectSettingsPermissionType `json:"settings,omitempty"`
+	Teams    *ProjectTeamsPermissionType    `json:"teams,omitempty"`
+	// This relation is considered BETA, SUBJECT TO CHANGE, and likely unavailable to most users.
 	VariableSets *ProjectVariableSetsPermissionType `json:"variable-sets,omitempty"`
 }