diff --git a/java/com/google/domain/registry/ui/server/registrar/RegistrarPaymentSetupAction.java b/java/com/google/domain/registry/ui/server/registrar/RegistrarPaymentSetupAction.java
index 3ca10089c..72e42cfbc 100644
--- a/java/com/google/domain/registry/ui/server/registrar/RegistrarPaymentSetupAction.java
+++ b/java/com/google/domain/registry/ui/server/registrar/RegistrarPaymentSetupAction.java
@@ -23,7 +23,6 @@ import com.google.common.collect.FluentIterable;
 import com.google.common.collect.ImmutableMap;
 import com.google.domain.registry.braintree.BraintreeRegistrarSyncer;
 import com.google.domain.registry.config.ConfigModule.Config;
-import com.google.domain.registry.config.RegistryEnvironment;
 import com.google.domain.registry.model.registrar.Registrar;
 import com.google.domain.registry.request.Action;
 import com.google.domain.registry.request.JsonActionRunner;
@@ -80,7 +79,6 @@ public final class RegistrarPaymentSetupAction implements Runnable, JsonAction {
   @Inject BraintreeRegistrarSyncer customerSyncer;
   @Inject JsonActionRunner jsonActionRunner;
   @Inject Registrar registrar;
-  @Inject RegistryEnvironment environment;
   @Inject @Config("brainframe") String brainframe;
   @Inject @Config("braintreeMerchantAccountIds") ImmutableMap<CurrencyUnit, String> accountIds;
   @Inject RegistrarPaymentSetupAction() {}
@@ -96,12 +94,8 @@ public final class RegistrarPaymentSetupAction implements Runnable, JsonAction {
       return JsonResponseHelper.create(ERROR, "JSON request object must be empty");
     }
 
-    // payment.js is hard-coded to display a specific SOY error template when encountering the
-    // following error messages.
-    if (environment == RegistryEnvironment.SANDBOX) {
-      // Prevent registrar customers from accidentally remitting payment via OT&E environment.
-      return JsonResponseHelper.create(ERROR, "sandbox");
-    } else if (registrar.getBillingMethod() != Registrar.BillingMethod.BRAINTREE) {
+    // payment.js is hard-coded to display a specific SOY error template for certain error messages.
+    if (registrar.getBillingMethod() != Registrar.BillingMethod.BRAINTREE) {
       // Registrar needs to contact support to have their billing bit flipped.
       return JsonResponseHelper.create(ERROR, "not-using-cc-billing");
     }
diff --git a/javatests/com/google/domain/registry/ui/server/registrar/RegistrarPaymentSetupActionTest.java b/javatests/com/google/domain/registry/ui/server/registrar/RegistrarPaymentSetupActionTest.java
index 3c41aaa84..86dc1b27b 100644
--- a/javatests/com/google/domain/registry/ui/server/registrar/RegistrarPaymentSetupActionTest.java
+++ b/javatests/com/google/domain/registry/ui/server/registrar/RegistrarPaymentSetupActionTest.java
@@ -22,7 +22,6 @@ import static org.mockito.Mockito.when;
 
 import com.google.common.collect.ImmutableMap;
 import com.google.domain.registry.braintree.BraintreeRegistrarSyncer;
-import com.google.domain.registry.config.RegistryEnvironment;
 import com.google.domain.registry.model.registrar.Registrar;
 import com.google.domain.registry.testing.AppEngineRule;
 
@@ -98,16 +97,6 @@ public class RegistrarPaymentSetupActionTest {
             "results", asList());
   }
 
-  @Test
-  public void testSandboxEnvironment_returnsError() throws Exception {
-    action.environment = RegistryEnvironment.SANDBOX;
-    assertThat(action.handleJsonRequest(ImmutableMap.<String, Object>of()))
-        .containsExactly(
-            "status", "ERROR",
-            "message", "sandbox",
-            "results", asList());
-  }
-
   @Test
   public void testNotOnCreditCardBillingTerms_showsErrorPage() throws Exception {
     action.registrar =