diff --git a/docs/source/io_formats/tallies.rst b/docs/source/io_formats/tallies.rst
index 9c0a2515e1..25f40c3704 100644
--- a/docs/source/io_formats/tallies.rst
+++ b/docs/source/io_formats/tallies.rst
@@ -123,8 +123,8 @@ to the scored values. The ``filter`` element has the following
 attributes/sub-elements:
 
   :type:
-    The type of the filter. Accepted options are "cell", "cellborn",
-    "material", "universe", "energy", "energyout", "mu", "polar",
+    The type of the filter. Accepted options are "cell", "cellfrom", 
+    "cellborn", "material", "universe", "energy", "energyout", "mu", "polar",
     "azimuthal", "mesh", "distribcell", "delayedgroup", and
     "energyfunction".
 
@@ -154,14 +154,24 @@ For each filter type, the following table describes what the ``bins`` attribute
 should be set to:
 
 :cell:
-  A list of unique IDs for cells in which the tally should be accumulated.
+  A list of cells or unique IDs for cells in which the tally should be 
+  accumulated.
+
+:cellfrom:
+  This filter allows the tally to be scored when crossing a surface and the 
+  particle came from a specified cell. A list of cell or cell IDs should be 
+  given.
+  To tally a partial current from a cell to another, this filter should be 
+  used in combination with a cell filter.
+  This filter should not be used in combination with a surface or meshfilter.
 
 :cellborn:
   This filter allows the tally to be scored to only when particles were
-  originally born in a specified cell. A list of cell IDs should be given.
+  originally born in a specified cell. A list of cell or cell IDs should be 
+  given.
 
 :material:
-  A list of unique IDs for matreials in which the tally should be accumulated.
+  A list of unique IDs for materials in which the tally should be accumulated.
 
 :universe:
   A list of unique IDs for universes in which the tally should be accumulated.
diff --git a/src/relaxng/tallies.rnc b/src/relaxng/tallies.rnc
index 4674fd4c03..5ab8971e6c 100644
--- a/src/relaxng/tallies.rnc
+++ b/src/relaxng/tallies.rnc
@@ -35,12 +35,14 @@ element tallies {
   element filter {
     (element id { xsd:int } | attribute id { xsd:int }) &
     (
-      ( (element type { ( "cell" | "cellborn" | "material" | "universe" |
-          "surface" | "distribcell" | "mesh" | "energy" | "energyout" | "mu" |
-          "polar" | "azimuthal" | "delayedgroup" | "energyfunction") } |
-         attribute type { ( "cell" | "cellborn" | "material" | "universe" |
-          "surface" | "distribcell" | "mesh" | "energy" | "energyout" | "mu" |
-          "polar" | "azimuthal" | "delayedgroup" | "energyfunction") }) &
+      ( (element type { ( "cell" | "cellfrom" | "cellborn" | "material" | 
+          "universe" | "surface" | "distribcell" | "mesh" | "energy" | 
+          "energyout" | "mu" | "polar" | "azimuthal" | "delayedgroup" | 
+          "energyfunction") } |
+         attribute type { ( "cell" | "cellfrom" | "cellborn" | "material" | 
+          "universe" | "surface" | "distribcell" | "mesh" | "energy" | 
+          "energyout" | "mu" | "polar" | "azimuthal" | "delayedgroup" | 
+          "energyfunction") }) &
         (element bins { list { xsd:double+ } } |
           attribute bins { list { xsd:double+ } })
       ) |
diff --git a/src/relaxng/tallies.rng b/src/relaxng/tallies.rng
index 1c68e57e83..bad2fdce91 100644
--- a/src/relaxng/tallies.rng
+++ b/src/relaxng/tallies.rng
@@ -168,6 +168,7 @@
                 <element name="type">
                   <choice>
                     <value>cell</value>
+                    <value>cellfrom</value>
                     <value>cellborn</value>
                     <value>material</value>
                     <value>universe</value>
@@ -186,6 +187,7 @@
                 <attribute name="type">
                   <choice>
                     <value>cell</value>
+                    <value>cellfrom</value>
                     <value>cellborn</value>
                     <value>material</value>
                     <value>universe</value>