diff --git a/src/sagemaker/model.py b/src/sagemaker/model.py
index 4891e20667..12fbbf741b 100644
--- a/src/sagemaker/model.py
+++ b/src/sagemaker/model.py
@@ -47,6 +47,7 @@
     "sa-east-1": "756306329178",
     "ca-central-1": "464438896020",
     "me-south-1": "836785723513",
+    "us-gov-west-1": "263933020539",
 }
 
 
diff --git a/tests/unit/test_model.py b/tests/unit/test_model.py
index c92fc307f6..82c42ae049 100644
--- a/tests/unit/test_model.py
+++ b/tests/unit/test_model.py
@@ -674,6 +674,7 @@ def test_check_neo_region(sagemaker_session, tmpdir):
         "sa-east-1",
         "ca-central-1",
         "me-south-1",
+        "us-gov-west-1",
     ]
     for region_name in ec2_region_list:
         if region_name in neo_support_region: