diff --git a/ods_tools/oed/__init__.py b/ods_tools/oed/__init__.py
index 996bf01..bec87ef 100644
--- a/ods_tools/oed/__init__.py
+++ b/ods_tools/oed/__init__.py
@@ -5,7 +5,7 @@
 from .common import (
     OdsException, PANDAS_COMPRESSION_MAP, PANDAS_DEFAULT_NULL_VALUES, USUAL_FILE_NAME, OED_TYPE_TO_NAME,
     OED_NAME_TO_TYPE, OED_IDENTIFIER_FIELDS, VALIDATOR_ON_ERROR_ACTION, DEFAULT_VALIDATION_CONFIG, OED_PERIL_COLUMNS, fill_empty,
-    UnknownColumnSaveOption, BLANK_VALUES
+    UnknownColumnSaveOption, BLANK_VALUES, is_empty
 )
 
 
@@ -13,5 +13,5 @@
     'OedExposure', 'OedSchema', 'OedSource', 'ModelSettingSchema', 'AnalysisSettingSchema',
     'OdsException', 'PANDAS_COMPRESSION_MAP', 'PANDAS_DEFAULT_NULL_VALUES', 'USUAL_FILE_NAME', 'OED_TYPE_TO_NAME',
     'OED_NAME_TO_TYPE', 'OED_IDENTIFIER_FIELDS', 'VALIDATOR_ON_ERROR_ACTION', 'DEFAULT_VALIDATION_CONFIG', 'OED_PERIL_COLUMNS', 'fill_empty',
-    'UnknownColumnSaveOption', 'BLANK_VALUES'
+    'UnknownColumnSaveOption', 'BLANK_VALUES', 'is_empty'
 ]
diff --git a/ods_tools/oed/validator.py b/ods_tools/oed/validator.py
index 15f4ead..40fa318 100644
--- a/ods_tools/oed/validator.py
+++ b/ods_tools/oed/validator.py
@@ -2,7 +2,6 @@
 import json
 import numpy as np
 import logging
-import pandas as pd
 
 from pathlib import Path
 from collections.abc import Iterable