diff --git a/docs/source/usersguide/input.rst b/docs/source/usersguide/input.rst
index b1186874a..90deeb204 100644
--- a/docs/source/usersguide/input.rst
+++ b/docs/source/usersguide/input.rst
@@ -709,11 +709,10 @@ Each ``<surface>`` element can have the following attributes or sub-elements:
     *Default*: None
 
   :label:
-    An optional string label to easily identify the surface in summary 
-    output files. This string is limited to 52 characters for formatting
-    purposes.
+    An optional string label to identify the surface in summary output
+    files. This string is limited to 52 characters for formatting purposes.
 
-    *Default*: None
+    *Default*: ""
 
   :type:
     The type of the surfaces. This can be "x-plane", "y-plane", "z-plane",
@@ -795,6 +794,12 @@ Each ``<cell>`` element can have the following attributes or sub-elements:
 
     *Default*: None
 
+  :label:
+    An optional string label to identify the cell in summary output files.
+    This string is limmited to 52 characters for formatting purposes.
+
+    *Default*: ""
+
   :universe:
     The ``id`` of the universe that this cell is contained in.
 
@@ -860,6 +865,12 @@ the following attributes or sub-elements:
   :id:
     A unique integer that can be used to identify the lattice.
 
+  :label:
+    An optional string label to identify the lattice in summary output
+    files. This string is limited to 52 characters for formatting purposes.
+
+    *Default*: ""
+
   :dimension:
     Two or three integers representing the number of lattice cells in the x- and
     y- (and z-) directions, respectively.
@@ -919,6 +930,12 @@ the following attributes or sub-elements:
   :id:
     A unique integer that can be used to identify the lattice.
 
+  :label:
+    An optional string label to identify the hex_lattice in summary output
+    files. This string is limited to 52 characters for formatting purposes.
+
+    *Default*: ""
+
   :n_rings:
     An integer representing the number of radial ring positions in the xy-plane.
     Note that this number includes the degenerate center ring which only has one
@@ -996,6 +1013,12 @@ Each ``material`` element can have the following attributes or sub-elements:
   :id:
     A unique integer that can be used to identify the material.
 
+  :label:
+    An optional string label to identify the material in summary output
+    files. This string is limited to 52 characters for formatting purposes.
+
+    *Default*: ""
+
   :density:
     An element with attributes/sub-elements called ``value`` and ``units``. The
     ``value`` attribute is the numeric value of the density while the ``units``
@@ -1099,9 +1122,10 @@ and ``<assume_separate>``.
 The ``<tally>`` element accepts the following sub-elements:
 
   :label:
-    This is an optional sub-element specifying the name of this tally to be used
-    for output purposes. This string is limited to 52 characters for formatting
-    purposes.
+    An optional string label to identify the tally in summary output
+    files. This string is limited to 52 characters for formatting purposes.
+
+    *Default*: ""
 
   :filter:
     Specify a filter that restricts contributions to the tally to particles