diff --git a/src/main/java/org/apache/commons/csv/CSVFormat.java b/src/main/java/org/apache/commons/csv/CSVFormat.java
index 5ad59a08..cd38a897 100644
--- a/src/main/java/org/apache/commons/csv/CSVFormat.java
+++ b/src/main/java/org/apache/commons/csv/CSVFormat.java
@@ -534,6 +534,15 @@ public class CSVFormat implements Serializable {
         return escape != null;
     }
 
+    /**
+     * Returns whether a nullString has been defined.
+     *
+     * @return {@code true} if a nullString is defined
+     */
+    public boolean isNullHandling() {
+        return nullString != null;
+    }
+
     /**
      * Returns whether a quoteChar has been defined.
      *