diff --git a/pom.xml b/pom.xml
index 0e272c5..c9c0fe2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>hapi-fhir</artifactId>
-        <version>3.8.0</version>
+        <version>4.0.0-SNAPSHOT</version>
     </parent>
 
     <groupId>ca.uhn.hapi.fhir.demo</groupId>
diff --git a/src/main/java/ca/uhn/fhir/jpa/starter/HapiProperties.java b/src/main/java/ca/uhn/fhir/jpa/starter/HapiProperties.java
index d15c840..3cb3ebb 100644
--- a/src/main/java/ca/uhn/fhir/jpa/starter/HapiProperties.java
+++ b/src/main/java/ca/uhn/fhir/jpa/starter/HapiProperties.java
@@ -25,6 +25,7 @@ public class HapiProperties {
     static final String DEFAULT_PRETTY_PRINT = "default_pretty_print";
     static final String ETAG_SUPPORT = "etag_support";
     static final String FHIR_VERSION = "fhir_version";
+    static final String ALLOW_CASCADING_DELETES = "allow_cascading_deletes";
     static final String HAPI_PROPERTIES = "hapi.properties";
     static final String LOGGER_ERROR_FORMAT = "logger.error_format";
     static final String LOGGER_FORMAT = "logger.format";
@@ -239,6 +240,10 @@ public class HapiProperties {
         return HapiProperties.getBooleanProperty(ALLOW_MULTIPLE_DELETE, false);
     }
 
+    public static Boolean getAllowCascadingDeletes() {
+        return HapiProperties.getBooleanProperty(ALLOW_CASCADING_DELETES, false);
+    }
+
     public static Boolean getAllowExternalReferences() {
         return HapiProperties.getBooleanProperty(ALLOW_EXTERNAL_REFERENCES, false);
     }
diff --git a/src/main/java/ca/uhn/fhir/jpa/starter/JpaRestfulServer.java b/src/main/java/ca/uhn/fhir/jpa/starter/JpaRestfulServer.java
index 4a8a835..512b184 100644
--- a/src/main/java/ca/uhn/fhir/jpa/starter/JpaRestfulServer.java
+++ b/src/main/java/ca/uhn/fhir/jpa/starter/JpaRestfulServer.java
@@ -2,9 +2,12 @@ package ca.uhn.fhir.jpa.starter;
 
 import ca.uhn.fhir.context.FhirContext;
 import ca.uhn.fhir.context.FhirVersionEnum;
+import ca.uhn.fhir.interceptor.api.IInterceptorBroadcaster;
 import ca.uhn.fhir.interceptor.api.IInterceptorService;
 import ca.uhn.fhir.jpa.dao.DaoConfig;
+import ca.uhn.fhir.jpa.dao.DaoRegistry;
 import ca.uhn.fhir.jpa.dao.IFhirSystemDao;
+import ca.uhn.fhir.jpa.interceptor.CascadingDeleteInterceptor;
 import ca.uhn.fhir.jpa.provider.JpaConformanceProviderDstu2;
 import ca.uhn.fhir.jpa.provider.JpaSystemProviderDstu2;
 import ca.uhn.fhir.jpa.provider.SubscriptionTriggeringProvider;
@@ -218,6 +221,14 @@ public class JpaRestfulServer extends RestfulServer {
             interceptorService.registerInterceptor(new SubscriptionDebugLogInterceptor());
         }
 
+        // Cascading deletes
+        DaoRegistry daoRegistry = appCtx.getBean(DaoRegistry.class);
+        IInterceptorBroadcaster interceptorBroadcaster = appCtx.getBean(IInterceptorBroadcaster.class);
+        if (HapiProperties.getAllowCascadingDeletes()) {
+            CascadingDeleteInterceptor cascadingDeleteInterceptor = new CascadingDeleteInterceptor(daoRegistry, interceptorBroadcaster);
+            getInterceptorService().registerInterceptor(cascadingDeleteInterceptor);
+        }
+
     }
 
 }
diff --git a/src/main/resources/hapi.properties b/src/main/resources/hapi.properties
index 99e6a9a..f2e1888 100644
--- a/src/main/resources/hapi.properties
+++ b/src/main/resources/hapi.properties
@@ -23,6 +23,7 @@ allow_override_default_search_params=true
 allow_contains_searches=true
 allow_multiple_delete=true
 allow_external_references=true
+allow_cascading_deletes=true
 allow_placeholder_references=true
 expunge_enabled=true
 persistence_unit_name=HAPI_PU