diff --git a/docs/source/devguide/statepoint.rst b/docs/source/devguide/statepoint.rst
index ffcc3d9686..b001b13060 100644
--- a/docs/source/devguide/statepoint.rst
+++ b/docs/source/devguide/statepoint.rst
@@ -4,6 +4,227 @@
 State Point Binary File Specifications
 ======================================
 
+----------
+Revision 6
+----------
+
+**integer(4) REVISION_STATEPOINT**
+
+    Revision of the binary state point file. Any time a change is made in the
+    format of the state-point file, this integer is incremented.
+
+**integer(4) VERSION_MAJOR**
+
+    Major version number for OpenMC
+
+**integer(4) VERSION_MINOR**
+
+    Minor version number for OpenMC
+
+**integer(4) VERSION_RELEASE**
+
+    Release version number for OpenMC
+
+**character(19) time_stamp**
+
+    Date and time the state point was written.
+
+**character(255) path**
+
+    Absolute path to directory containing input files.
+
+**integer(8) seed**
+
+    Pseudo-random number generator seed.
+
+**integer(4) run_mode**
+
+    run mode used. The modes are described in constants.F90.
+
+**integer(8) n_particles**
+
+    Number of particles used per generation.
+
+**integer(4) n_batches**
+
+    Total number of batches (active + inactive).
+
+**integer(4) current_batch**
+
+    The number of batches already simulated.
+
+if (run_mode == MODE_CRITICALITY)
+
+    **integer(4) n_inactive**
+
+        Number of inactive batches
+
+    **integer(4) gen_per_batch**
+
+        Number of generations per batch for criticality calculations
+
+    *do i = 1, current_batch*
+
+        **real(8) k_batch(i)**
+
+             k-effective for the i-th batch
+
+    *do i = 1, current_batch*
+
+        **real(8) entropy(i)**
+
+            Shannon entropy for the i-th batch
+
+**integer(4) n_meshes**
+
+    Number of meshes in tallies.xml file
+
+*do i = 1, n_meshes*
+
+    **integer(4) meshes(i) % id**
+
+        Unique ID of mesh.
+
+    **integer(4) meshes(i) % type**
+
+        Type of mesh.
+
+    **integer(4) meshes(i) % n_dimension**
+
+        Number of dimensions for mesh (2 or 3).
+
+    **integer(4) meshes(i) % dimension(:)**
+
+        Number of mesh cells in each dimension.
+
+    **real(8) meshes(i) % lower_left(:)**
+
+        Coordinates of lower-left corner of mesh.
+
+    **real(8) meshes(i) % upper_right(:)**
+
+        Coordinates of upper-right corner of mesh.
+
+    **real(8) meshes(i) % width(:)**
+
+        Width of each mesh cell in each dimension.
+
+**integer(4) n_tallies**
+
+*do i = 1, n_tallies*
+
+    **integer(4) tallies(i) % id**
+
+        Unique ID of tally.
+
+    **integer(4) tallies(i) % n_realizations**
+
+        Number of realizations for the i-th tally.
+
+    **integer(4) size(tallies(i) % scores, 1)**
+
+        Total number of score bins for the i-th tally
+
+    **integer(4) size(tallies(i) % scores, 2)**
+
+        Total number of filter bins for the i-th tally
+
+    **integer(4) tallies(i) % n_filters**
+
+    *do j = 1, tallies(i) % n_filters*
+
+        **integer(4) tallies(i) % filter(j) % type**
+
+            Type of tally filter.
+
+        **integer(4) tallies(i) % filter(j) % n_bins**
+
+            Number of bins for filter.
+
+        **integer(4)/real(8) tallies(i) % filter(j) % bins(:)**
+
+            Value for each filter bin of this type.
+
+    **integer(4) tallies(i) % n_nuclide_bins**
+
+        Number of nuclide bins. If none are specified, this is just one.
+
+    *do j = 1, tallies(i) % n_nuclide_bins*
+
+        **integer(4) tallies(i) % nuclide_bins(j)**
+
+            Values of specified nuclide bins
+
+    **integer(4) tallies(i) % n_score_bins**
+
+        Number of scoring bins.
+
+    *do j = 1, tallies(i) % n_score_bins*
+
+        **integer(4) tallies(i) % score_bins(j)**
+
+            Values of specified scoring bins (e.g. SCORE_FLUX).
+
+**integer(4) n_realizations**
+
+    Number of realizations for global tallies.
+
+**integer(4) N_GLOBAL_TALLIES**
+
+    Number of global tally scores
+
+*do i = 1, N_GLOBAL_TALLIES*
+
+    **real(8) global_tallies(i) % sum**
+
+        Accumulated sum for the i-th global tally
+
+    **real(8) global_tallies(i) % sum_sq**
+
+        Accumulated sum of squares for the i-th global tally
+
+**integer(4) tallies_on**
+
+    Flag indicated if tallies are present in the file.
+
+if (tallies_on > 0)
+
+    *do i = 1, n_tallies*
+
+        *do k = 1, size(tallies(i) % scores, 2)*
+
+            *do j = 1, size(tallies(i) % scores, 1)*
+
+                **real(8) tallies(i) % scores(j,k) % sum**
+            
+                    Accumulated sum for the j-th score and k-th filter of the
+                    i-th tally
+
+                **real(8) tallies(i) % scores(j,k) % sum_sq**
+
+                    Accumulated sum of squares for the j-th score and k-th
+                    filter of the i-th tally
+
+if (run_mode == MODE_CRITICALITY)
+
+    *do i = 1, n_particles*
+
+        **real(8) source_bank(i) % wgt**
+
+            Weight of the i-th source particle
+
+        **real(8) source_bank(i) % xyz(1:3)**
+
+            Coordinates of the i-th source particle.
+
+        **real(8) source_bank(i) % uvw(1:3)**
+
+            Direction of the i-th source particle
+
+        **real(8) source_bank(i) % E**
+
+            Energy of the i-th source particle.
+
 ----------
 Revision 5
 ----------
diff --git a/src/constants.F90 b/src/constants.F90
index 1724bdcca5..be63ccc379 100644
--- a/src/constants.F90
+++ b/src/constants.F90
@@ -12,7 +12,7 @@ module constants
 
   ! Revision numbers for binary files
   integer, parameter :: REVISION_SOURCE     = 1
-  integer, parameter :: REVISION_STATEPOINT = 5
+  integer, parameter :: REVISION_STATEPOINT = 6
 
   ! ============================================================================
   ! ADJUSTABLE PARAMETERS