diff --git a/CHANGES.rst b/CHANGES.rst
index de0ebda..164637f 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,11 @@
 RIOS.CORE Change History
 ************************
 
+0.10.0 (2024-08-27)
+===================
+
+* Range validation fixes. 
+
 
 0.9.0 (2020-06-12)
 ==================
diff --git a/setup.py b/setup.py
index 8923bde..3171be6 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setup(
     name='rios.core',
-    version='0.9.0',
+    version='0.10.0',
     description='Parsing and Validation Library for RIOS Files',
     long_description=open('README.rst', 'r').read(),
     keywords='rios prismh research instrument assessment standard validation',
diff --git a/src/rios/core/validation/assessment.py b/src/rios/core/validation/assessment.py
index 1f6ca97..384b516 100644
--- a/src/rios/core/validation/assessment.py
+++ b/src/rios/core/validation/assessment.py
@@ -298,31 +298,33 @@ def _check_value_constraints(self, node, value, field, type_def):
         if type_def.get('range'):
             casted_value = self._cast_range(value, type_def['base'])
 
-            casted_min = self._cast_range(
-                type_def['range']['min'],
-                type_def['base'],
-            )
-            if type_def['range'].get('min') is not None \
-                    and casted_value < casted_min:
-                raise ValidationError(
-                    node,
-                    'Value for "%s" is less than acceptible minimum' % (
-                        field['id'],
-                    ),
+            min_range_value = type_def['range'].get('min')
+            if min_range_value is not None: 
+                casted_min = self._cast_range(
+                    type_def['range']['min'],
+                    type_def['base'],
                 )
+                if casted_value < casted_min:
+                    raise ValidationError(
+                        node,
+                        'Value for "%s" is less than acceptible minimum' % (
+                            field['id'],
+                        ),
+                    )
 
-            casted_max = self._cast_range(
-                type_def['range']['max'],
-                type_def['base'],
-            )
-            if type_def['range'].get('max') is not None \
-                    and casted_value > casted_max:
-                raise ValidationError(
-                    node,
-                    'Value for "%s" is greater than acceptible maximum' % (
-                        field['id'],
-                    ),
+            max_range_value = type_def['range'].get('max')
+            if max_range_value is not None: 
+                casted_max = self._cast_range(
+                    type_def['range']['max'],
+                    type_def['base'],
                 )
+                if casted_value > casted_max:
+                    raise ValidationError(
+                        node,
+                        'Value for "%s" is greater than acceptible maximum' % (
+                            field['id'],
+                        ),
+                    )
 
     def _cast_range(self, value, type_base):
         if type_base in ('integer', 'float'):
diff --git a/tests/examples/instruments/good/type_range_float_max.json b/tests/examples/instruments/good/type_range_float_max.json
new file mode 100644
index 0000000..a7d0c74
--- /dev/null
+++ b/tests/examples/instruments/good/type_range_float_max.json
@@ -0,0 +1,17 @@
+{
+  "id": "urn:example:bad:range:float:reversed",
+  "version": "1.0",
+  "title": "An Instrument Title",
+  "record": [
+    {
+      "id": "field1",
+      "type": {
+        "base": "float",
+        "range": {
+          "max": 10.5
+        }
+      }
+    }
+  ]
+}
+
diff --git a/tests/examples/instruments/good/type_range_float_min.json b/tests/examples/instruments/good/type_range_float_min.json
new file mode 100644
index 0000000..6aef29b
--- /dev/null
+++ b/tests/examples/instruments/good/type_range_float_min.json
@@ -0,0 +1,17 @@
+{
+  "id": "urn:example:bad:range:float:reversed",
+  "version": "1.0",
+  "title": "An Instrument Title",
+  "record": [
+    {
+      "id": "field1",
+      "type": {
+        "base": "float",
+        "range": {
+          "min": 2.1
+        }
+      }
+    }
+  ]
+}
+