diff --git a/neutron_lib/callbacks/events.py b/neutron_lib/callbacks/events.py
index 418565547..7c7bd5850 100644
--- a/neutron_lib/callbacks/events.py
+++ b/neutron_lib/callbacks/events.py
@@ -19,6 +19,8 @@ BEFORE_DELETE = 'before_delete'
 PRECOMMIT_CREATE = 'precommit_create'
 PRECOMMIT_UPDATE = 'precommit_update'
 PRECOMMIT_DELETE = 'precommit_delete'
+PRECOMMIT_ADD_ASSOCIATION = 'precommit_add_association'
+PRECOMMIT_DELETE_ASSOCIATIONS = 'precommit_delete_associations'
 
 AFTER_CREATE = 'after_create'
 AFTER_READ = 'after_read'
diff --git a/neutron_lib/callbacks/resources.py b/neutron_lib/callbacks/resources.py
index 4d4c84051..8a87d0711 100644
--- a/neutron_lib/callbacks/resources.py
+++ b/neutron_lib/callbacks/resources.py
@@ -22,6 +22,7 @@ PORT_DEVICE = 'port_device'
 PROCESS = 'process'
 RBAC_POLICY = 'rbac-policy'
 ROUTER = 'router'
+ROUTER_CONTROLLER = 'router_controller'
 ROUTER_GATEWAY = 'router_gateway'
 ROUTER_INTERFACE = 'router_interface'
 SECURITY_GROUP = 'security_group'
diff --git a/releasenotes/notes/events_l3_flavors-053714858ced693d.yaml b/releasenotes/notes/events_l3_flavors-053714858ced693d.yaml
new file mode 100644
index 000000000..cc3bf319b
--- /dev/null
+++ b/releasenotes/notes/events_l3_flavors-053714858ced693d.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - This adds two new events ``PRECOMMIT_ADD_ASSOCIATION``,
+    ``PRECOMMIT_DELETE_ASSOCIATIONS`` and a resource ``ROUTER_CONTROLLER``.