diff --git a/libprocessgroup/cgrouprc/a_cgroup_controller.cpp b/libprocessgroup/cgrouprc/a_cgroup_controller.cpp
index 5a326e5..889b3be 100644
--- a/libprocessgroup/cgrouprc/a_cgroup_controller.cpp
+++ b/libprocessgroup/cgrouprc/a_cgroup_controller.cpp
@@ -32,6 +32,11 @@
     return controller->flags();
 }
 
+uint32_t ACgroupController_getMaxActivationDepth(const ACgroupController* controller) {
+    CHECK(controller != nullptr);
+    return controller->max_activation_depth();
+}
+
 const char* ACgroupController_getName(const ACgroupController* controller) {
     CHECK(controller != nullptr);
     return controller->name();
diff --git a/libprocessgroup/cgrouprc/include/android/cgrouprc.h b/libprocessgroup/cgrouprc/include/android/cgrouprc.h
index e704a36..3a57df5 100644
--- a/libprocessgroup/cgrouprc/include/android/cgrouprc.h
+++ b/libprocessgroup/cgrouprc/include/android/cgrouprc.h
@@ -79,6 +79,14 @@
         const ACgroupController*) __INTRODUCED_IN(30);
 
 /**
+ * Returns the maximum activation depth of the given controller.
+ * Only applicable to cgroup v2 controllers.
+ * Returns UINT32_MAX if no maximum activation depth is set.
+ */
+__attribute__((warn_unused_result, weak)) uint32_t ACgroupController_getMaxActivationDepth(
+        const ACgroupController* controller) __INTRODUCED_IN(36);
+
+/**
  * Returns the name of the given controller.
  * If the given controller is null, return nullptr.
  */
diff --git a/libprocessgroup/cgrouprc/libcgrouprc.map.txt b/libprocessgroup/cgrouprc/libcgrouprc.map.txt
index b62b10f..30bd25f 100644
--- a/libprocessgroup/cgrouprc/libcgrouprc.map.txt
+++ b/libprocessgroup/cgrouprc/libcgrouprc.map.txt
@@ -16,3 +16,10 @@
   local:
     *;
 };
+
+LIBCGROUPRC_36 { # introduced=36
+  global:
+    ACgroupController_getMaxActivationDepth; # llndk=202504 systemapi
+  local:
+    *;
+};