Index: /issm/trunk/src/m/classes/timestepping.m
===================================================================
--- /issm/trunk/src/m/classes/timestepping.m	(revision 9754)
+++ /issm/trunk/src/m/classes/timestepping.m	(revision 9755)
@@ -50,7 +50,4 @@
 				checkmessage(['model not consistent: model ' md.miscellaneous.name ' time_adapt field should be 0 or 1']);
 			end
-			if md.timestepping.time_step<=0,
-				checkmessage('model not consistent: field timestepping.time_step must be positive for a transient run')
-			end
 			if(md.timestepping.cfl_coefficient>1 | md.timestepping.cfl_coefficient<0),
 				checkmessage(['model not consistent: model ' md.miscellaneous.name ' cfl_coefficient field should between  0 and 1']);