diff --git a/java/google/registry/flows/exceptions/AddRemoveSameValueEppException.java b/java/google/registry/flows/exceptions/AddRemoveSameValueEppException.java
new file mode 100644
index 000000000..63ee173e4
--- /dev/null
+++ b/java/google/registry/flows/exceptions/AddRemoveSameValueEppException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.ParameterValuePolicyErrorException;
+
+/** Cannot add and remove the same value. */
+public class AddRemoveSameValueEppException extends ParameterValuePolicyErrorException {
+  public AddRemoveSameValueEppException() {
+    super("Cannot add and remove the same value");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/AlreadyPendingTransferException.java b/java/google/registry/flows/exceptions/AlreadyPendingTransferException.java
new file mode 100644
index 000000000..45aa3ff34
--- /dev/null
+++ b/java/google/registry/flows/exceptions/AlreadyPendingTransferException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.ObjectPendingTransferException;
+
+/** The resource is already pending transfer. */
+public class AlreadyPendingTransferException extends ObjectPendingTransferException {
+  public AlreadyPendingTransferException(String targetId) {
+    super(targetId);
+  }
+}
diff --git a/java/google/registry/flows/exceptions/BadCommandForRegistryPhaseException.java b/java/google/registry/flows/exceptions/BadCommandForRegistryPhaseException.java
new file mode 100644
index 000000000..944d4b332
--- /dev/null
+++ b/java/google/registry/flows/exceptions/BadCommandForRegistryPhaseException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.CommandUseErrorException;
+
+/** Command is not allowed in the current registry phase. */
+public class BadCommandForRegistryPhaseException extends CommandUseErrorException {
+  public BadCommandForRegistryPhaseException() {
+    super("Command is not allowed in the current registry phase");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/MissingTransferRequestAuthInfoException.java b/java/google/registry/flows/exceptions/MissingTransferRequestAuthInfoException.java
new file mode 100644
index 000000000..562d7b922
--- /dev/null
+++ b/java/google/registry/flows/exceptions/MissingTransferRequestAuthInfoException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.AuthorizationErrorException;
+
+/** Authorization info is required to request a transfer. */
+public class MissingTransferRequestAuthInfoException extends AuthorizationErrorException {
+  public MissingTransferRequestAuthInfoException() {
+    super("Authorization info is required to request a transfer");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/NoTransferHistoryToQueryException.java b/java/google/registry/flows/exceptions/NoTransferHistoryToQueryException.java
new file mode 100644
index 000000000..60fea0177
--- /dev/null
+++ b/java/google/registry/flows/exceptions/NoTransferHistoryToQueryException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.CommandUseErrorException;
+
+/** Object has no transfer history. */
+public class NoTransferHistoryToQueryException extends CommandUseErrorException {
+  public NoTransferHistoryToQueryException() {
+    super("Object has no transfer history");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/NotAuthorizedToViewTransferException.java b/java/google/registry/flows/exceptions/NotAuthorizedToViewTransferException.java
new file mode 100644
index 000000000..65457405d
--- /dev/null
+++ b/java/google/registry/flows/exceptions/NotAuthorizedToViewTransferException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.AuthorizationErrorException;
+
+/** Registrar is not authorized to view transfer status. */
+public class NotAuthorizedToViewTransferException extends AuthorizationErrorException {
+  public NotAuthorizedToViewTransferException() {
+    super("Registrar is not authorized to view transfer status");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/NotPendingTransferException.java b/java/google/registry/flows/exceptions/NotPendingTransferException.java
new file mode 100644
index 000000000..74381b03d
--- /dev/null
+++ b/java/google/registry/flows/exceptions/NotPendingTransferException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.ObjectNotPendingTransferException;
+
+/** The resource does not have a pending transfer. */
+public class NotPendingTransferException extends ObjectNotPendingTransferException {
+  public NotPendingTransferException(String objectId) {
+    super(objectId);
+  }
+}
diff --git a/java/google/registry/flows/exceptions/NotTransferInitiatorException.java b/java/google/registry/flows/exceptions/NotTransferInitiatorException.java
new file mode 100644
index 000000000..5f049ed6e
--- /dev/null
+++ b/java/google/registry/flows/exceptions/NotTransferInitiatorException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.AuthorizationErrorException;
+
+/** Registrar is not the initiator of this transfer. */
+public class NotTransferInitiatorException extends AuthorizationErrorException {
+  public NotTransferInitiatorException() {
+    super("Registrar is not the initiator of this transfer");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/ObjectAlreadySponsoredException.java b/java/google/registry/flows/exceptions/ObjectAlreadySponsoredException.java
new file mode 100644
index 000000000..345ccc9cb
--- /dev/null
+++ b/java/google/registry/flows/exceptions/ObjectAlreadySponsoredException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.CommandUseErrorException;
+
+/** Registrar already sponsors the object of this transfer request. */
+public class ObjectAlreadySponsoredException extends CommandUseErrorException {
+  public ObjectAlreadySponsoredException() {
+    super("Registrar already sponsors the object of this transfer request");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/OnlyToolCanPassMetadataException.java b/java/google/registry/flows/exceptions/OnlyToolCanPassMetadataException.java
new file mode 100644
index 000000000..8d1e82b14
--- /dev/null
+++ b/java/google/registry/flows/exceptions/OnlyToolCanPassMetadataException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.AuthorizationErrorException;
+
+/** Only a tool can pass a metadata extension. */
+public class OnlyToolCanPassMetadataException extends AuthorizationErrorException {
+  public OnlyToolCanPassMetadataException() {
+    super("Metadata extensions can only be passed by tools.");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/ResourceAlreadyExistsException.java b/java/google/registry/flows/exceptions/ResourceAlreadyExistsException.java
new file mode 100644
index 000000000..3f014ad29
--- /dev/null
+++ b/java/google/registry/flows/exceptions/ResourceAlreadyExistsException.java
@@ -0,0 +1,39 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import com.google.common.annotations.VisibleForTesting;
+import google.registry.flows.EppException.ObjectAlreadyExistsException;
+
+/** Resource with this id already exists. */
+public class ResourceAlreadyExistsException extends ObjectAlreadyExistsException {
+
+  /** Whether this was thrown from a "failfast" context. Useful for testing. */
+  final boolean failfast;
+
+  public ResourceAlreadyExistsException(String resourceId, boolean failfast) {
+    super(String.format("Object with given ID (%s) already exists", resourceId));
+    this.failfast = failfast;
+  }
+
+  public ResourceAlreadyExistsException(String resourceId) {
+    this(resourceId, false);
+  }
+
+  @VisibleForTesting
+  public boolean isFailfast() {
+    return failfast;
+  }
+}
diff --git a/java/google/registry/flows/exceptions/ResourceHasClientUpdateProhibitedException.java b/java/google/registry/flows/exceptions/ResourceHasClientUpdateProhibitedException.java
new file mode 100644
index 000000000..e12c03b54
--- /dev/null
+++ b/java/google/registry/flows/exceptions/ResourceHasClientUpdateProhibitedException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.StatusProhibitsOperationException;
+
+/** This resource has clientUpdateProhibited on it, and the update does not clear that status. */
+public class ResourceHasClientUpdateProhibitedException extends StatusProhibitsOperationException {
+  public ResourceHasClientUpdateProhibitedException() {
+    super("Operation disallowed by status: clientUpdateProhibited");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/ResourceStatusProhibitsOperationException.java b/java/google/registry/flows/exceptions/ResourceStatusProhibitsOperationException.java
new file mode 100644
index 000000000..834ca9f94
--- /dev/null
+++ b/java/google/registry/flows/exceptions/ResourceStatusProhibitsOperationException.java
@@ -0,0 +1,28 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import com.google.common.base.Joiner;
+import google.registry.flows.EppException.StatusProhibitsOperationException;
+import google.registry.model.eppcommon.StatusValue;
+import java.util.Set;
+
+/** Resource status prohibits this operation. */
+public class ResourceStatusProhibitsOperationException
+    extends StatusProhibitsOperationException {
+  public ResourceStatusProhibitsOperationException(Set<StatusValue> status) {
+    super("Operation disallowed by status: " + Joiner.on(", ").join(status));
+  }
+}
diff --git a/java/google/registry/flows/exceptions/ResourceToDeleteIsReferencedException.java b/java/google/registry/flows/exceptions/ResourceToDeleteIsReferencedException.java
new file mode 100644
index 000000000..cdc185947
--- /dev/null
+++ b/java/google/registry/flows/exceptions/ResourceToDeleteIsReferencedException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.AssociationProhibitsOperationException;
+
+/** Resource to be deleted has active incoming references. */
+public class ResourceToDeleteIsReferencedException extends AssociationProhibitsOperationException {
+  public ResourceToDeleteIsReferencedException() {
+    super("Resource to be deleted has active incoming references");
+  }
+}
diff --git a/java/google/registry/flows/exceptions/ResourceToMutateDoesNotExistException.java b/java/google/registry/flows/exceptions/ResourceToMutateDoesNotExistException.java
new file mode 100644
index 000000000..f4df5ada8
--- /dev/null
+++ b/java/google/registry/flows/exceptions/ResourceToMutateDoesNotExistException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.ObjectDoesNotExistException;
+
+/** Resource with this id does not exist. */
+public class ResourceToMutateDoesNotExistException extends ObjectDoesNotExistException {
+  public ResourceToMutateDoesNotExistException(Class<?> type, String targetId) {
+    super(type, targetId);
+  }
+}
diff --git a/java/google/registry/flows/exceptions/ResourceToQueryDoesNotExistException.java b/java/google/registry/flows/exceptions/ResourceToQueryDoesNotExistException.java
new file mode 100644
index 000000000..4aad6c2cb
--- /dev/null
+++ b/java/google/registry/flows/exceptions/ResourceToQueryDoesNotExistException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.ObjectDoesNotExistException;
+
+/** Resource with this id does not exist. */
+public class ResourceToQueryDoesNotExistException extends ObjectDoesNotExistException {
+  public ResourceToQueryDoesNotExistException(Class<?> type, String targetId) {
+    super(type, targetId);
+  }
+}
diff --git a/java/google/registry/flows/exceptions/StatusNotClientSettableException.java b/java/google/registry/flows/exceptions/StatusNotClientSettableException.java
new file mode 100644
index 000000000..218be3a9d
--- /dev/null
+++ b/java/google/registry/flows/exceptions/StatusNotClientSettableException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.ParameterValueRangeErrorException;
+
+/** The specified status value cannot be set by clients. */
+public class StatusNotClientSettableException extends ParameterValueRangeErrorException {
+  public StatusNotClientSettableException(String statusValue) {
+    super(String.format("Status value %s cannot be set by clients", statusValue));
+  }
+}
diff --git a/java/google/registry/flows/exceptions/TooManyResourceChecksException.java b/java/google/registry/flows/exceptions/TooManyResourceChecksException.java
new file mode 100644
index 000000000..686cf50cc
--- /dev/null
+++ b/java/google/registry/flows/exceptions/TooManyResourceChecksException.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package google.registry.flows.exceptions;
+
+import google.registry.flows.EppException.ParameterValuePolicyErrorException;
+
+/** Too many resource checks requested in one check command. */
+public class TooManyResourceChecksException extends ParameterValuePolicyErrorException {
+  public TooManyResourceChecksException(int maxChecks) {
+    super(String.format("No more than %s resources may be checked at a time", maxChecks));
+  }
+}