diff --git a/bmi/bmi.hxx b/bmi/bmi.hxx
deleted file mode 100644
index 87b290b7..00000000
--- a/bmi/bmi.hxx
+++ /dev/null
@@ -1,84 +0,0 @@
-// The Basic Model Interface (BMI) C++ specification.
-//
-// This language specification is derived from the Scientific
-// Interface Definition Language (SIDL) file bmi.sidl located at
-// https://github.com/csdms/bmi.
-
-#ifndef BMI_HXX
-#define BMI_HXX
-#include <string>
-#include <vector>
-
-namespace bmixx {
-
-  //const int BMI_SUCCESS = 0;
-  //  const int BMI_FAILURE = 1;
-
-  const int MAX_COMPONENT_NAME = 2048;
-  const int MAX_VAR_NAME = 2048;
-  const int MAX_UNITS_NAME = 2048;
-  const int MAX_TYPE_NAME = 2048;
-
-  class Bmi {
-    public:
-      // Model control functions.
-      virtual void Initialize(std::string config_file) = 0;
-      virtual void Update() = 0;
-      virtual void UpdateUntil(double time) = 0;
-      virtual void Finalize() = 0;
-
-      // Model information functions.
-      virtual std::string GetComponentName() = 0;
-      virtual int GetInputItemCount() = 0;
-      virtual int GetOutputItemCount() = 0;
-      virtual std::vector<std::string> GetInputVarNames() = 0;
-      virtual std::vector<std::string> GetOutputVarNames() = 0;
-
-      // Variable information functions
-      virtual int GetVarGrid(std::string name) = 0;
-      virtual std::string GetVarType(std::string name) = 0;
-      virtual std::string GetVarUnits(std::string name) = 0;
-      virtual int GetVarItemsize(std::string name) = 0;
-      virtual int GetVarNbytes(std::string name) = 0;
-      virtual std::string GetVarLocation(std::string name) = 0;
-
-      virtual double GetCurrentTime() = 0;
-      virtual double GetStartTime() = 0;
-      virtual double GetEndTime() = 0;
-      virtual std::string GetTimeUnits() = 0;
-      virtual double GetTimeStep() = 0;
-
-      // Variable getters
-      virtual void GetValue(std::string name, void *dest) = 0;
-      virtual void *GetValuePtr(std::string name) = 0;
-      virtual void GetValueAtIndices(std::string name, void *dest, int *inds, int count) = 0;
-
-      // Variable setters
-      virtual void SetValue(std::string name, void *src) = 0;
-      virtual void SetValueAtIndices(std::string name, int *inds, int count, void *src) = 0;
-
-      // Grid information functions
-      virtual int GetGridRank(const int grid) = 0;
-      virtual int GetGridSize(const int grid) = 0;
-      virtual std::string GetGridType(const int grid) = 0;
-
-      virtual void GetGridShape(const int grid, int *shape) = 0;
-      virtual void GetGridSpacing(const int grid, double *spacing) = 0;
-      virtual void GetGridOrigin(const int grid, double *origin) = 0;
-
-      virtual void GetGridX(const int grid, double *x) = 0;
-      virtual void GetGridY(const int grid, double *y) = 0;
-      virtual void GetGridZ(const int grid, double *z) = 0;
-
-      virtual int GetGridNodeCount(const int grid) = 0;
-      virtual int GetGridEdgeCount(const int grid) = 0;
-      virtual int GetGridFaceCount(const int grid) = 0;
-
-      virtual void GetGridEdgeNodes(const int grid, int *edge_nodes) = 0;
-      virtual void GetGridFaceEdges(const int grid, int *face_edges) = 0;
-      virtual void GetGridFaceNodes(const int grid, int *face_nodes) = 0;
-      virtual void GetGridNodesPerFace(const int grid, int *nodes_per_face) = 0;
-  };
-}
-
-#endif
diff --git a/src/main_cfe_aorc_pet_rz_aet.cxx b/src/main_cfe_aorc_pet_rz_aet.cxx
index d1034cb9..02d24949 100644
--- a/src/main_cfe_aorc_pet_rz_aet.cxx
+++ b/src/main_cfe_aorc_pet_rz_aet.cxx
@@ -12,7 +12,6 @@
 #include "../extern/evapotranspiration/include/pet.h"
 #include "../extern/evapotranspiration/include/bmi_pet.h"
 
-#include "../bmi/bmi.hxx"
 #include "../extern/SoilMoistureProfiles/include/bmi_soil_moisture_profile.hxx"
 #include "../extern/SoilMoistureProfiles/include/soil_moisture_profile.hxx"