diff --git a/include/cantera/transport/LiquidTranInteraction.h b/include/cantera/transport/LiquidTranInteraction.h
index 77f2c17b9..a9dc2f82d 100644
--- a/include/cantera/transport/LiquidTranInteraction.h
+++ b/include/cantera/transport/LiquidTranInteraction.h
@@ -131,16 +131,16 @@ public:
     //! Return the mixture transport property value.
     //! (Must be implemented in subclasses.)
     virtual doublereal getMixTransProp(doublereal* speciesValues, doublereal* weightSpecies = 0) {
-        throw NotImplemented("LiquidTranInteraction::getMixTransProp");
+        throw NotImplementedError("LiquidTranInteraction::getMixTransProp");
     }
 
     virtual doublereal getMixTransProp(std::vector<LTPspecies*> LTPptrs) {
-        throw NotImplemented("LiquidTranInteraction::getMixTransProp");
+        throw NotImplementedError("LiquidTranInteraction::getMixTransProp");
     }
 
     virtual void getMatrixTransProp(DenseMatrix& mat, doublereal* speciesValues = 0) {
         //mat = m_Dij;
-        throw NotImplemented("LiquidTranInteraction::getMixTransProp");
+        throw NotImplementedError("LiquidTranInteraction::getMixTransProp");
     }
 
 protected:
diff --git a/include/cantera/transport/TransportParams.h b/include/cantera/transport/TransportParams.h
index 6788e9274..8cbac2b7a 100644
--- a/include/cantera/transport/TransportParams.h
+++ b/include/cantera/transport/TransportParams.h
@@ -15,20 +15,6 @@ namespace Cantera
 
 class XML_Writer;
 
-//! Error class to indicate an unimplemented method
-/*!
- * This class is used by transport objects
- */
-class NotImplemented : public CanteraError
-{
-public:
-    //! Constructor for error class
-    /*!
-     *  @param method Single string indicating a method that is not implemented
-     */
-    NotImplemented(const std::string& method);
-};
-
 //! Base structure to hold transport model parameters.
 /*!
  * This structure is used by TransportFactory.
diff --git a/src/transport/TransportParams.cpp b/src/transport/TransportParams.cpp
index e3786373a..22bbc5025 100644
--- a/src/transport/TransportParams.cpp
+++ b/src/transport/TransportParams.cpp
@@ -15,13 +15,6 @@ using namespace std;
 namespace Cantera
 {
 
-NotImplemented::NotImplemented(const std::string& method) :
-    CanteraError("Transport",
-                 "\n\n**** Method " + method + " not implemented. ****\n"
-                 "(Did you forget to specify a transport model?)\n\n")
-{
-}
-
 TransportParams::TransportParams() :
     nsp_(0),
     thermo(0),