diff --git a/EInAPI.h b/EInAPI.h
index 065b3a4..68e5ac0 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -626,7 +626,9 @@ EIN_EXPORT BOOL __stdcall EgtPointSurfTmDist( const double ptP[3], int nId, int
 // Geo Inters
 EIN_EXPORT BOOL __stdcall EgtLineSurfTmInters( const double ptP[3], const double vtDir[3], int nId, int nRefType,
                                                int*& vFlagInters, double*& vParInters, int* pnCount) ;
-EIN_EXPORT int  __stdcall EgtSurfTmSurfTmInters( int nId1, int nId2, int nDestGrpId,
+EIN_EXPORT int  __stdcall EgtPlaneSurfTmInters( const double ptOn[3], const double vtN[3], int nId, int nDestGrpId, int nRefType, double dToler,
+                                                int* pnPntCount, int* pnCrvCount, int* pnSrfCount) ;
+EIN_EXPORT int  __stdcall EgtSurfTmSurfTmInters( int nId1, int nId2, int nDestGrpId, double dToler,
                                                  int* pnPntCount, int* pnCrvCount, int* pnSrfCount) ;
 
 // Maximum Filler
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 0a96044..5428d62 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -735,9 +735,9 @@ EXE_EXPORT bool ExeLineBoxInters( const Point3d& ptP, const Vector3d& vtDir, con
 EXE_EXPORT int  ExePlaneBoxInters( const Point3d& ptOn, const Vector3d& vtN, const BBox3d& b3Box, int nDestGrpId, int nRefType,
                                    int* pnPntCount, int* pnCrvCount, int* pnSrfCount) ;
 EXE_EXPORT bool ExeLineSurfTmInters( const Point3d& ptP, const Vector3d& vtDir, int nId, int nRefType, INTDBLVECTOR& vInters) ;
-EXE_EXPORT int  ExePlaneSurfTmInters( const Point3d& ptOn, const Vector3d& vtN, int nId, int nDestGrpId, int nRefType,
+EXE_EXPORT int  ExePlaneSurfTmInters( const Point3d& ptOn, const Vector3d& vtN, int nId, int nDestGrpId, int nRefType, double dToler,
                                       int* pnPntCount, int* pnCrvCount, int* pnSrfCount) ;
-EXE_EXPORT int  ExeSurfTmSurfTmInters( int nId1, int nId2, int nDestGrpId,
+EXE_EXPORT int  ExeSurfTmSurfTmInters( int nId1, int nId2, int nDestGrpId, double dToler,
                                        int* pnPntCount, int* pnCrvCount, int* pnSrfCount) ;
 EXE_EXPORT bool ExeLineVolZmapInters( const Point3d& ptP, const Vector3d& vtDir, int nId, int nRefType, INTDBLVECTOR& vInters) ;
 EXE_EXPORT int  ExePlaneVolZmapInters( const Point3d& ptOn, const Vector3d& vtN, int nId, int nDestGrpId, int nRefType,