diff --git a/hal/src/main/native/athena/mockdata/MockHooks.cpp b/hal/src/main/native/athena/mockdata/MockHooks.cpp
index 0ea05d02e4..a6a680448e 100644
--- a/hal/src/main/native/athena/mockdata/MockHooks.cpp
+++ b/hal/src/main/native/athena/mockdata/MockHooks.cpp
@@ -48,4 +48,6 @@ int32_t HALSIM_RegisterSimPeriodicAfterCallback(
 
 void HALSIM_CancelSimPeriodicAfterCallback(int32_t uid) {}
 
+void HALSIM_CancelAllSimPeriodicCallbacks(void) {}
+
 }  // extern "C"
diff --git a/hal/src/main/native/include/hal/simulation/MockHooks.h b/hal/src/main/native/include/hal/simulation/MockHooks.h
index 330f72e727..fe50656be3 100644
--- a/hal/src/main/native/include/hal/simulation/MockHooks.h
+++ b/hal/src/main/native/include/hal/simulation/MockHooks.h
@@ -36,4 +36,6 @@ int32_t HALSIM_RegisterSimPeriodicAfterCallback(
     HALSIM_SimPeriodicCallback callback, void* param);
 void HALSIM_CancelSimPeriodicAfterCallback(int32_t uid);
 
+void HALSIM_CancelAllSimPeriodicCallbacks(void);
+
 }  // extern "C"
diff --git a/hal/src/main/native/sim/HAL.cpp b/hal/src/main/native/sim/HAL.cpp
index 8d911df7fe..9856f0110d 100644
--- a/hal/src/main/native/sim/HAL.cpp
+++ b/hal/src/main/native/sim/HAL.cpp
@@ -409,6 +409,11 @@ void HALSIM_CancelSimPeriodicAfterCallback(int32_t uid) {
   gSimPeriodicAfter.Cancel(uid);
 }
 
+void HALSIM_CancelAllSimPeriodicCallbacks(void) {
+  gSimPeriodicBefore.Reset();
+  gSimPeriodicAfter.Reset();
+}
+
 int64_t HAL_Report(int32_t resource, int32_t instanceNumber, int32_t context,
                    const char* feature) {
   return 0;  // Do nothing for now