diff --git a/src/Microsoft.AspNetCore.Mvc.DataAnnotations/Internal/AttributeAdapterBase.cs b/src/Microsoft.AspNetCore.Mvc.DataAnnotations/AttributeAdapterBase.cs
similarity index 95%
rename from src/Microsoft.AspNetCore.Mvc.DataAnnotations/Internal/AttributeAdapterBase.cs
rename to src/Microsoft.AspNetCore.Mvc.DataAnnotations/AttributeAdapterBase.cs
index 0382a0aa99..6f8d1a0d26 100644
--- a/src/Microsoft.AspNetCore.Mvc.DataAnnotations/Internal/AttributeAdapterBase.cs
+++ b/src/Microsoft.AspNetCore.Mvc.DataAnnotations/AttributeAdapterBase.cs
@@ -5,7 +5,7 @@ using System.ComponentModel.DataAnnotations;
 using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
 using Microsoft.Extensions.Localization;
 
-namespace Microsoft.AspNetCore.Mvc.DataAnnotations.Internal
+namespace Microsoft.AspNetCore.Mvc.DataAnnotations
 {
     /// <summary>
     /// An abstract subclass of <see cref="ValidationAttributeAdapter{TAttribute}"/> which wraps up all the required
diff --git a/src/Microsoft.AspNetCore.Mvc.DataAnnotations/IValidationAttributeAdapterProvider.cs b/src/Microsoft.AspNetCore.Mvc.DataAnnotations/IValidationAttributeAdapterProvider.cs
index 14b92f76a2..dc973bc9ac 100644
--- a/src/Microsoft.AspNetCore.Mvc.DataAnnotations/IValidationAttributeAdapterProvider.cs
+++ b/src/Microsoft.AspNetCore.Mvc.DataAnnotations/IValidationAttributeAdapterProvider.cs
@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System.ComponentModel.DataAnnotations;
-using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
 using Microsoft.Extensions.Localization;
 
 namespace Microsoft.AspNetCore.Mvc.DataAnnotations
diff --git a/src/Microsoft.AspNetCore.Mvc.DataAnnotations/Internal/ValidationAttributeAdapterOfTAttribute.cs b/src/Microsoft.AspNetCore.Mvc.DataAnnotations/ValidationAttributeAdapterOfTAttribute.cs
similarity index 98%
rename from src/Microsoft.AspNetCore.Mvc.DataAnnotations/Internal/ValidationAttributeAdapterOfTAttribute.cs
rename to src/Microsoft.AspNetCore.Mvc.DataAnnotations/ValidationAttributeAdapterOfTAttribute.cs
index fbd2f15da9..9a2d284098 100644
--- a/src/Microsoft.AspNetCore.Mvc.DataAnnotations/Internal/ValidationAttributeAdapterOfTAttribute.cs
+++ b/src/Microsoft.AspNetCore.Mvc.DataAnnotations/ValidationAttributeAdapterOfTAttribute.cs
@@ -8,7 +8,7 @@ using Microsoft.AspNetCore.Mvc.ModelBinding;
 using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
 using Microsoft.Extensions.Localization;
 
-namespace Microsoft.AspNetCore.Mvc.DataAnnotations.Internal
+namespace Microsoft.AspNetCore.Mvc.DataAnnotations
 {
     /// <summary>
     /// An implementation of <see cref="IClientModelValidator"/> which understands data annotation attributes.
diff --git a/src/Microsoft.AspNetCore.Mvc.DataAnnotations/Internal/ValidationAttributeAdapterProvider.cs b/src/Microsoft.AspNetCore.Mvc.DataAnnotations/ValidationAttributeAdapterProvider.cs
similarity index 97%
rename from src/Microsoft.AspNetCore.Mvc.DataAnnotations/Internal/ValidationAttributeAdapterProvider.cs
rename to src/Microsoft.AspNetCore.Mvc.DataAnnotations/ValidationAttributeAdapterProvider.cs
index ed74f641e4..8e7b33922c 100644
--- a/src/Microsoft.AspNetCore.Mvc.DataAnnotations/Internal/ValidationAttributeAdapterProvider.cs
+++ b/src/Microsoft.AspNetCore.Mvc.DataAnnotations/ValidationAttributeAdapterProvider.cs
@@ -3,9 +3,10 @@
 
 using System;
 using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Mvc.DataAnnotations.Internal;
 using Microsoft.Extensions.Localization;
 
-namespace Microsoft.AspNetCore.Mvc.DataAnnotations.Internal
+namespace Microsoft.AspNetCore.Mvc.DataAnnotations
 {
     /// <summary>
     /// Creates an <see cref="IAttributeAdapter"/> for the given attribute.
diff --git a/test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/ClientValidatorCacheTest.cs b/test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/ClientValidatorCacheTest.cs
index d2e70f15f7..642eb82ea0 100644
--- a/test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/ClientValidatorCacheTest.cs
+++ b/test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/ClientValidatorCacheTest.cs
@@ -3,6 +3,7 @@
 
 using System.ComponentModel.DataAnnotations;
 using System.Linq;
+using Microsoft.AspNetCore.Mvc.DataAnnotations;
 using Microsoft.AspNetCore.Mvc.DataAnnotations.Internal;
 using Microsoft.AspNetCore.Mvc.ModelBinding;
 using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
diff --git a/test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/ValidatorCacheTest.cs b/test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/ValidatorCacheTest.cs
index bd53d105c4..57bf369b9b 100644
--- a/test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/ValidatorCacheTest.cs
+++ b/test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/ValidatorCacheTest.cs
@@ -3,6 +3,7 @@
 
 using System.ComponentModel.DataAnnotations;
 using System.Linq;
+using Microsoft.AspNetCore.Mvc.DataAnnotations;
 using Microsoft.AspNetCore.Mvc.DataAnnotations.Internal;
 using Microsoft.AspNetCore.Mvc.ModelBinding;
 using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
diff --git a/test/Microsoft.AspNetCore.Mvc.Core.Test/ModelBinding/Binders/KeyValuePairModelBinderTest.cs b/test/Microsoft.AspNetCore.Mvc.Core.Test/ModelBinding/Binders/KeyValuePairModelBinderTest.cs
index e519667c16..3436568fbf 100644
--- a/test/Microsoft.AspNetCore.Mvc.Core.Test/ModelBinding/Binders/KeyValuePairModelBinderTest.cs
+++ b/test/Microsoft.AspNetCore.Mvc.Core.Test/ModelBinding/Binders/KeyValuePairModelBinderTest.cs
@@ -5,8 +5,6 @@ using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Mvc.DataAnnotations;
-using Microsoft.AspNetCore.Mvc.DataAnnotations.Internal;
 using Xunit;
 
 namespace Microsoft.AspNetCore.Mvc.ModelBinding.Binders