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diff --git a/TAO/tao/Policy_Validator.h b/TAO/tao/Policy_Validator.h
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+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    Policy_Validator.h
+ *
+ *  $Id$
+ *
+ *  This file contains the declaration for the POA policy validator
+ *  interface.
+ *
+ *  @author  Angelo Corsaro <corsaro@cs.wustl.edu>
+ *  @author  Frank Hunleth  <fhuntleth@cs.wustl.edu>
+ */
+//=============================================================================
+
+#ifndef TAO_POLICY_VALIDATOR_H
+#define TAO_POLICY_VALIDATOR_H
+
+#include /**/ "ace/pre.h"
+#include "ace/CORBA_macros.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include /**/ "tao/TAO_Export.h"
+#include "tao/Basic_Types.h"
+
+TAO_BEGIN_VERSIONED_NAMESPACE_DECL
+
+// Forward declarations.
+class TAO_Policy_Set;
+class TAO_ORB_Core;
+
+namespace CORBA
+{
+  typedef ULong PolicyType;
+
+  class Environment;
+}
+
+/**
+ * @class TAO_Policy_Validator
+ *
+ * @brief An abstract class for plugging in different Policy Validator
+ *  mechanisms.
+ *
+ *  This class was moved from the PortableServer library. The Portable
+ *  Serever library used this abstraction to add policy validators to
+ *  for the policies in the POA. This class seems so much useful for
+ *  passing policy information between different loaded libraries.
+ */
+
+class TAO_Export TAO_Policy_Validator
+{
+public:
+  /// Constructor.
+  TAO_Policy_Validator (TAO_ORB_Core &orb_core);
+
+  /// Destructor.
+  virtual ~TAO_Policy_Validator (void);
+
+  /**
+   * Validate that the policies in the specified set
+   * are consistent and legal.  Throw an appropriate exception
+   * if that is not the case.
+   */
+  void validate (TAO_Policy_Set &policies
+                 ACE_ENV_ARG_DECL);
+
+  /**
+   * Add/merge policies.
+   **/
+  void merge_policies (TAO_Policy_Set &policies
+                       ACE_ENV_ARG_DECL);
+
+  /**
+   * Return whether the specified policy type is legal for the
+   * current configuration.  This is needed since the user can
+   * potentially specify policies that are unknown to an
+   * validate () routine, and these need to be caught.
+   */
+  CORBA::Boolean legal_policy (CORBA::PolicyType type);
+
+  /**
+   * Adds a validator to the "chain of validators". The <code>
+   * TAO_POA_Policy_Validator </code> implements something that looks
+   * like a chain of responsability in which different member of the
+   * chain have the responsability of validating a given set of
+   * policies.
+   */
+  void add_validator (TAO_Policy_Validator *validator);
+
+
+ /**
+  * Accessor for the stored ORB core reference
+  */
+ TAO_ORB_Core & orb_core() const;
+
+protected:
+  virtual void validate_impl (TAO_Policy_Set &policies
+                              ACE_ENV_ARG_DECL) = 0;
+
+  virtual void merge_policies_impl (TAO_Policy_Set &policies
+                                    ACE_ENV_ARG_DECL) = 0;
+
+  virtual CORBA::Boolean legal_policy_impl (CORBA::PolicyType type) = 0;
+
+  TAO_ORB_Core &orb_core_;
+
+private:
+  TAO_Policy_Validator *next_;
+};
+
+TAO_END_VERSIONED_NAMESPACE_DECL
+
+#include /**/ "ace/post.h"
+
+#endif /* TAO_POLICY_VALIDATOR_H */