diff --git a/core/src/main/java/google/registry/model/eppcommon/ProtocolDefinition.java b/core/src/main/java/google/registry/model/eppcommon/ProtocolDefinition.java
index 7eeea88e0..0aa15471d 100644
--- a/core/src/main/java/google/registry/model/eppcommon/ProtocolDefinition.java
+++ b/core/src/main/java/google/registry/model/eppcommon/ProtocolDefinition.java
@@ -44,10 +44,7 @@ public class ProtocolDefinition {
   public static final String LANGUAGE = "en";
 
   public static final ImmutableSet<String> SUPPORTED_OBJECT_SERVICES =
-      ImmutableSet.of(
-          "urn:ietf:params:xml:ns:host-1.0",
-          "urn:ietf:params:xml:ns:domain-1.0",
-          "urn:ietf:params:xml:ns:contact-1.0");
+      ImmutableSet.of("urn:ietf:params:xml:ns:host-1.0", "urn:ietf:params:xml:ns:domain-1.0");
 
   /** Enum representing which environments should have which service extensions enabled. */
   private enum ServiceExtensionVisibility {
diff --git a/core/src/test/java/google/registry/model/eppinput/EppInputTest.java b/core/src/test/java/google/registry/model/eppinput/EppInputTest.java
index 68d824fdd..43da2566a 100644
--- a/core/src/test/java/google/registry/model/eppinput/EppInputTest.java
+++ b/core/src/test/java/google/registry/model/eppinput/EppInputTest.java
@@ -68,10 +68,7 @@ class EppInputTest {
     assertThat(loginCommand.options.version).isEqualTo("1.0");
     assertThat(loginCommand.options.language).isEqualTo("en");
     assertThat(loginCommand.services.objectServices)
-        .containsExactly(
-            "urn:ietf:params:xml:ns:host-1.0",
-            "urn:ietf:params:xml:ns:domain-1.0",
-            "urn:ietf:params:xml:ns:contact-1.0");
+        .containsExactly("urn:ietf:params:xml:ns:host-1.0", "urn:ietf:params:xml:ns:domain-1.0");
     assertThat(loginCommand.services.serviceExtensions)
         .containsExactly("urn:ietf:params:xml:ns:launch-1.0", "urn:ietf:params:xml:ns:rgp-1.0");
   }
diff --git a/core/src/test/resources/google/registry/flows/greeting.xml b/core/src/test/resources/google/registry/flows/greeting.xml
index f039bfca7..4482b7f27 100644
--- a/core/src/test/resources/google/registry/flows/greeting.xml
+++ b/core/src/test/resources/google/registry/flows/greeting.xml
@@ -6,7 +6,6 @@
       <version>1.0</version>
       <lang>en</lang>
       <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
-      <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
       <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
       <svcExtension>
         <extURI>urn:ietf:params:xml:ns:launch-1.0</extURI>
diff --git a/core/src/test/resources/google/registry/flows/login.xml b/core/src/test/resources/google/registry/flows/login.xml
index 00dd038af..922f68ca6 100644
--- a/core/src/test/resources/google/registry/flows/login.xml
+++ b/core/src/test/resources/google/registry/flows/login.xml
@@ -10,7 +10,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <svcExtension>
           <extURI>urn:ietf:params:xml:ns:launch-1.0</extURI>
           <extURI>urn:ietf:params:xml:ns:rgp-1.0</extURI>
diff --git a/core/src/test/resources/google/registry/flows/login_update_password.xml b/core/src/test/resources/google/registry/flows/login_update_password.xml
index 07011f4e9..dc832cf97 100644
--- a/core/src/test/resources/google/registry/flows/login_update_password.xml
+++ b/core/src/test/resources/google/registry/flows/login_update_password.xml
@@ -11,7 +11,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <svcExtension>
           <extURI>urn:ietf:params:xml:ns:launch-1.0</extURI>
           <extURI>urn:ietf:params:xml:ns:rgp-1.0</extURI>
diff --git a/core/src/test/resources/google/registry/flows/login_valid_fee_extension.xml b/core/src/test/resources/google/registry/flows/login_valid_fee_extension.xml
index 7f72adc17..d5278b542 100644
--- a/core/src/test/resources/google/registry/flows/login_valid_fee_extension.xml
+++ b/core/src/test/resources/google/registry/flows/login_valid_fee_extension.xml
@@ -10,7 +10,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <svcExtension>
           <extURI>urn:ietf:params:xml:ns:launch-1.0</extURI>
           <extURI>urn:ietf:params:xml:ns:rgp-1.0</extURI>
diff --git a/core/src/test/resources/google/registry/flows/login_wrong_case.xml b/core/src/test/resources/google/registry/flows/login_wrong_case.xml
index c0c8716a1..514909845 100644
--- a/core/src/test/resources/google/registry/flows/login_wrong_case.xml
+++ b/core/src/test/resources/google/registry/flows/login_wrong_case.xml
@@ -11,7 +11,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <svcExtension>
           <extURI>urn:ietf:params:xml:ns:launch-1.0</extURI>
           <extURI>urn:ietf:params:xml:ns:rgp-1.0</extURI>
diff --git a/core/src/test/resources/google/registry/flows/session/greeting.xml b/core/src/test/resources/google/registry/flows/session/greeting.xml
index f039bfca7..4482b7f27 100644
--- a/core/src/test/resources/google/registry/flows/session/greeting.xml
+++ b/core/src/test/resources/google/registry/flows/session/greeting.xml
@@ -6,7 +6,6 @@
       <version>1.0</version>
       <lang>en</lang>
       <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
-      <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
       <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
       <svcExtension>
         <extURI>urn:ietf:params:xml:ns:launch-1.0</extURI>
diff --git a/core/src/test/resources/google/registry/flows/session/login_invalid_extension.xml b/core/src/test/resources/google/registry/flows/session/login_invalid_extension.xml
index 45d022c24..40fd1d3de 100644
--- a/core/src/test/resources/google/registry/flows/session/login_invalid_extension.xml
+++ b/core/src/test/resources/google/registry/flows/session/login_invalid_extension.xml
@@ -10,7 +10,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <svcExtension>
           <extURI>http://custom/obj1ext-1.0</extURI>
         </svcExtension>
diff --git a/core/src/test/resources/google/registry/flows/session/login_invalid_language.xml b/core/src/test/resources/google/registry/flows/session/login_invalid_language.xml
index 8e4a2290a..8324b1cb2 100644
--- a/core/src/test/resources/google/registry/flows/session/login_invalid_language.xml
+++ b/core/src/test/resources/google/registry/flows/session/login_invalid_language.xml
@@ -10,7 +10,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
       </svcs>
     </login>
     <clTRID>ABC-12345</clTRID>
diff --git a/core/src/test/resources/google/registry/flows/session/login_invalid_types.xml b/core/src/test/resources/google/registry/flows/session/login_invalid_types.xml
index 480ead567..a3625b3ef 100644
--- a/core/src/test/resources/google/registry/flows/session/login_invalid_types.xml
+++ b/core/src/test/resources/google/registry/flows/session/login_invalid_types.xml
@@ -10,7 +10,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:foo-1.0</objURI>
       </svcs>
     </login>
diff --git a/core/src/test/resources/google/registry/flows/session/login_invalid_version.xml b/core/src/test/resources/google/registry/flows/session/login_invalid_version.xml
index 3469a5f79..2ce50ce3a 100644
--- a/core/src/test/resources/google/registry/flows/session/login_invalid_version.xml
+++ b/core/src/test/resources/google/registry/flows/session/login_invalid_version.xml
@@ -10,7 +10,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
       </svcs>
     </login>
     <clTRID>ABC-12345</clTRID>
diff --git a/core/src/test/resources/google/registry/flows/session/login_set_new_password.xml b/core/src/test/resources/google/registry/flows/session/login_set_new_password.xml
index 2fd6ba91c..eedc98b09 100644
--- a/core/src/test/resources/google/registry/flows/session/login_set_new_password.xml
+++ b/core/src/test/resources/google/registry/flows/session/login_set_new_password.xml
@@ -11,7 +11,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
       </svcs>
     </login>
     <clTRID>ABC-12345</clTRID>
diff --git a/core/src/test/resources/google/registry/flows/session/login_valid.xml b/core/src/test/resources/google/registry/flows/session/login_valid.xml
index 210c07aa3..a854beb05 100644
--- a/core/src/test/resources/google/registry/flows/session/login_valid.xml
+++ b/core/src/test/resources/google/registry/flows/session/login_valid.xml
@@ -10,7 +10,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
       </svcs>
     </login>
     <clTRID>ABC-12345</clTRID>
diff --git a/core/src/test/resources/google/registry/flows/syntax_error.xml b/core/src/test/resources/google/registry/flows/syntax_error.xml
index b25f3360e..858dde672 100644
--- a/core/src/test/resources/google/registry/flows/syntax_error.xml
+++ b/core/src/test/resources/google/registry/flows/syntax_error.xml
@@ -12,7 +12,6 @@ xsi:schemaLocation="urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd">
       </options>
       <svcs>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <svcExtension>
           <extURI>urn:ietf:params:xml:ns:secDNS-1.1</extURI>
diff --git a/core/src/test/resources/google/registry/model/eppinput/login_valid.xml b/core/src/test/resources/google/registry/model/eppinput/login_valid.xml
index 9844b2f7a..cbd3f8897 100644
--- a/core/src/test/resources/google/registry/model/eppinput/login_valid.xml
+++ b/core/src/test/resources/google/registry/model/eppinput/login_valid.xml
@@ -10,7 +10,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <svcExtension>
           <extURI>urn:ietf:params:xml:ns:launch-1.0</extURI>
           <extURI>urn:ietf:params:xml:ns:rgp-1.0</extURI>
diff --git a/core/src/test/resources/google/registry/model/eppinput/login_wrong_case.xml b/core/src/test/resources/google/registry/model/eppinput/login_wrong_case.xml
index c445ab412..6b36afa25 100644
--- a/core/src/test/resources/google/registry/model/eppinput/login_wrong_case.xml
+++ b/core/src/test/resources/google/registry/model/eppinput/login_wrong_case.xml
@@ -10,7 +10,6 @@
       <svcs>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <svcExtension>
           <extURI>urn:ietf:params:xml:ns:launch-1.0</extURI>
           <extURI>urn:ietf:params:xml:ns:rgp-1.0</extURI>
diff --git a/load-testing/src/main/java/google/registry/client/resources/login.xml b/load-testing/src/main/java/google/registry/client/resources/login.xml
index 4ff8ac658..e8bb28637 100644
--- a/load-testing/src/main/java/google/registry/client/resources/login.xml
+++ b/load-testing/src/main/java/google/registry/client/resources/login.xml
@@ -11,7 +11,6 @@
     <svcs>
       <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
       <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-      <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
     </svcs>
   </login>
   <clTRID>epp-client-login-@@NOW@@-@@CHANNEL_NUMBER@@</clTRID>
diff --git a/prober/src/main/resources/google/registry/monitoring/blackbox/message/greeting.xml b/prober/src/main/resources/google/registry/monitoring/blackbox/message/greeting.xml
index 775de6d00..45d67c656 100644
--- a/prober/src/main/resources/google/registry/monitoring/blackbox/message/greeting.xml
+++ b/prober/src/main/resources/google/registry/monitoring/blackbox/message/greeting.xml
@@ -5,7 +5,6 @@
     <svcMenu>
       <version>1.0</version>
       <lang>en</lang>
-      <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
       <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
       <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
     </svcMenu>
diff --git a/prober/src/main/resources/google/registry/monitoring/blackbox/message/login.xml b/prober/src/main/resources/google/registry/monitoring/blackbox/message/login.xml
index b4c72cd61..a0e87ff54 100644
--- a/prober/src/main/resources/google/registry/monitoring/blackbox/message/login.xml
+++ b/prober/src/main/resources/google/registry/monitoring/blackbox/message/login.xml
@@ -10,7 +10,6 @@
       </options>
       <svcs>
         <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
-        <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
         <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
         <svcExtension>
           <extURI>urn:ietf:params:xml:ns:launch-1.0</extURI>