diff --git a/docs/source/io_formats/tallies.rst b/docs/source/io_formats/tallies.rst
index 7f95f2985..50ba7b3d5 100644
--- a/docs/source/io_formats/tallies.rst
+++ b/docs/source/io_formats/tallies.rst
@@ -312,8 +312,8 @@ element with the tag name ``<mesh>``. This element has the following
 attributes/sub-elements:
 
   :type:
-    The type of mesh. This can be either "regular", "rectilinear", or
-    "unstructured".
+    The type of mesh. This can be either "regular", "rectilinear",
+    "cylindrical", "spherical", or "unstructured".
 
   :dimension:
     The number of mesh cells in each direction. (For regular mesh only.)
@@ -340,7 +340,16 @@ attributes/sub-elements:
     The mesh divisions along the y-axis. (For rectilinear mesh only.)
 
   :z_grid:
-    The mesh divisions along the z-axis. (For rectilinear mesh only.)
+    The mesh divisions along the z-axis. (For rectilinear and cylindrical meshes only.)
+
+  :r_grid:
+    The mesh divisions along the r-axis. (For cylindrical and spherical meshes only.)
+
+  :p_grid:
+    The mesh divisions along the phi-axis. (For cylindrical and spherical meshes only.)
+
+  :t_grid:
+    The mesh divisions along the theta-axis. (For spherical mesh only.)
 
   :library:
     The mesh library used to represent an unstructured mesh. This can be either
diff --git a/src/relaxng/tallies.rnc b/src/relaxng/tallies.rnc
index 3d504a66c..583b274c6 100644
--- a/src/relaxng/tallies.rnc
+++ b/src/relaxng/tallies.rnc
@@ -24,6 +24,24 @@ element tallies {
           attribute y_grid { list { xsd:double+ } }) &
         (element z_grid { list { xsd:double+ } } |
           attribute z_grid { list { xsd:double+ } })
+      ) | (
+        (element type { ( "cylindrical" ) } |
+          attribute type { ( "cylindrical" ) }) &
+        (element r_grid { list { xsd:double+ } } |
+          attribute r_grid { list { xsd:double+ } }) &
+        (element p_grid { list { xsd:double+ } } |
+          attribute p_grid { list { xsd:double+ } }) &
+        (element z_grid { list { xsd:double+ } } |
+          attribute z_grid { list { xsd:double+ } })
+      ) | (
+        (element type { ( "spherical" ) } |
+          attribute type { ( "spherical" ) }) &
+        (element r_grid { list { xsd:double+ } } |
+          attribute r_grid { list { xsd:double+ } }) &
+        (element t_grid { list { xsd:double+ } } |
+          attribute p_grid { list { xsd:double+ } }) &
+        (element p_grid { list { xsd:double+ } } |
+          attribute z_grid { list { xsd:double+ } })
       )
     )
   }* &