diff --git a/src/enumstxt.h b/src/enumstxt.h
index 65962a6..222f8d3 100755
--- a/src/enumstxt.h
+++ b/src/enumstxt.h
@@ -1,13 +1,13 @@
 /*
  *****************************************************************************
  Project:      OWA EPANET
- Version:      2.2
+ Version:      2.3
  Module:       enumstxt.h
  Description:  text strings for enumerated data types
  Authors:      see AUTHORS
  Copyright:    see AUTHORS
  License:      see LICENSE
- Last Updated: 06/24/2024
+ Last Updated: 03/10/2025
  ******************************************************************************
 */
 
@@ -117,6 +117,14 @@ char *RptFlagTxt[]      = {w_NO,
 char *BackflowTxt[]     = {w_NO,
                            w_YES,
                            NULL};
+                           
+char *CurveTypeTxt[]    = {c_VOLUME,
+                           c_PUMP,
+                           c_EFFIC,
+                           c_HEADLOSS,
+                           c_GENERIC,
+                           c_VALVE,
+                           NULL};                           
 
 char *SectTxt[]         = {s_TITLE,     s_JUNCTIONS, s_RESERVOIRS,
                            s_TANKS,     s_PIPES,     s_PUMPS,
diff --git a/src/inpfile.c b/src/inpfile.c
index da69fd0..84ff42e 100644
--- a/src/inpfile.c
+++ b/src/inpfile.c
@@ -7,7 +7,7 @@ Description:  saves network data to an EPANET formatted text file
 Authors:      see AUTHORS
 Copyright:    see AUTHORS
 License:      see LICENSE
-Last Updated: 02/14/2025
+Last Updated: 03/11/2025
 ******************************************************************************
 */
 
@@ -34,6 +34,7 @@ extern char *TstatTxt[];
 extern char *RptFlagTxt[];
 extern char *SectTxt[];
 extern char *BackflowTxt[];
+extern char *CurveTypeTxt[];
 
 void saveauxdata(Project *pr, FILE *f)
 /*
@@ -434,15 +435,20 @@ int saveinpfile(Project *pr, const char *fname)
     // Write [CURVES] section
     fprintf(f, "\n\n");
     fprintf(f, s_CURVES);
-    fprintf(f, "\n;;%-31s\t%-12s\t%-12s",
-        "ID", "X-Value", "Y-Value");
+    fprintf(f, "\n;;%-31s\t%-12s\t%-12s", "ID", "X-Value", "Y-Value");
     for (i = 1; i <= net->Ncurves; i++)
     {
-        if (net->Curve[i].Comment) fprintf(f, "\n;%s", net->Curve[i].Comment);
-        for (j = 0; j < net->Curve[i].Npts; j++)
+        curve = &net->Curve[i];
+        if (curve->Comment) fprintf(f, "\n;%s", curve->Comment);
+        if (curve->Npts > 0)
         {
-            curve = &net->Curve[i];
-            fprintf(f, "\n %-31s\t%-12.4f\t%-12.4f", curve->ID, curve->X[j], curve->Y[j]);
+            fprintf(f, "\n %-31s\t%-12.4f\t%-12.4f\t%s", curve->ID,
+                curve->X[0], curve->Y[0], CurveTypeTxt[curve->Type]);
+            for (j = 1; j < curve->Npts; j++)
+            {
+                fprintf(f, "\n %-31s\t%-12.4f\t%-12.4f", curve->ID,
+                    curve->X[j], curve->Y[j]);
+            }
         }
     }
 
diff --git a/src/input3.c b/src/input3.c
index 281c09b..8568379 100644
--- a/src/input3.c
+++ b/src/input3.c
@@ -7,7 +7,7 @@ Description:  parses network data from a line of an EPANET input file
 Authors:      see AUTHORS
 Copyright:    see AUTHORS
 License:      see LICENSE
-Last Updated: 02/14/2025
+Last Updated: 03/10/2025
 ******************************************************************************
 */
 
@@ -26,6 +26,7 @@ extern char *MixTxt[];
 extern char *Fldname[];
 extern char *DemandModelTxt[];
 extern char *BackflowTxt[];
+extern char *CurveTypeTxt[];
 
 // Imported Functions
 extern int addnodeID(Network *, int, char *);
@@ -740,7 +741,7 @@ int curvedata(Project *pr)
     Network *net = &pr->network;
     Parser  *parser = &pr->parser;
 
-    int i;
+    int i, ctype;
     double x, y;
     Scurve *curve;
 
@@ -748,6 +749,11 @@ int curvedata(Project *pr)
     if (parser->Ntokens < 3) return 201;
     if (!getfloat(parser->Tok[1], &x)) return setError(parser, 1, 202);
     if (!getfloat(parser->Tok[2], &y)) return setError(parser, 2, 202);
+    ctype = -1;
+    if (parser->Ntokens > 3)
+    {
+        ctype = findmatch(parser->Tok[3], CurveTypeTxt);
+    }        
 
     // Check if previous input line was for the same curve
     if (parser->PrevCurve && strcmp(parser->Tok[0], parser->PrevCurve->ID) == 0)
@@ -777,6 +783,7 @@ int curvedata(Project *pr)
     curve->X[curve->Npts] = x;
     curve->Y[curve->Npts] = y;
     curve->Npts++;
+    if (ctype >= 0) curve->Type = (CurveType)ctype;
 
     // Save a reference to this curve for processing additional curve data
     parser->PrevCurve = curve;
diff --git a/src/text.h b/src/text.h
index 087977e..57f461e 100755
--- a/src/text.h
+++ b/src/text.h
@@ -7,7 +7,7 @@
  Authors:      see AUTHORS
  Copyright:    see AUTHORS
  License:      see LICENSE
- Last Updated: 02/11/2025
+ Last Updated: 03/10/2025
  ******************************************************************************
 */
 
@@ -270,6 +270,8 @@
 #define   c_PUMP        "PUMP"
 #define   c_EFFIC       "EFFIC"
 #define   c_VOLUME      "VOLUME"
+#define   c_VALVE       "VALVE"
+#define   c_GENERIC     "GENERIC"
 
 //------- Text Phrases ------------------------------------