diff --git a/docs/source_docs/inputs/InputsCheckpoint.rst b/docs/source_docs/inputs/InputsCheckpoint.rst
index 33ce629d4a71f24f46e7d96b6a6e5bd998f8c013..6bd0a6d60c400581fc5d83ff234d6c85e28c23d7 100644
--- a/docs/source_docs/inputs/InputsCheckpoint.rst
+++ b/docs/source_docs/inputs/InputsCheckpoint.rst
@@ -16,15 +16,9 @@ The following inputs must be preceded by "mfix." and control checkpoint/restart.
 | check_per_approx        | Frequency of checkpoint output in simulation time;                    |    Real     | 0         |
 |                         | if 0 then no checkpoints will be written                              |             |           |
 +-------------------------+-----------------------------------------------------------------------+-------------+-----------+
-| check_file              | Prefix to use for checkpoint output                                   |  String     | chk       |
-+-------------------------+-----------------------------------------------------------------------+-------------+-----------+
-| check_walltime_limit    | Write a check point file before the specified walltime (HH:MM:SS)     |    Real     | -1        |
-|                         | has been reached. For example, if mfix.check_walltime_limit = 0:10:00 |             |           |
-|                         | then a checkpoint file is written a little time before the job has    |             |           |
-|                         | reached 10 minutes of runtime                                         |             |           |
+| check_walltime_interval | Frequency of checkpoint output in runtime (HH:MM:SS)                  |  String     | ""        |
 +-------------------------+-----------------------------------------------------------------------+-------------+-----------+
-| check_walltime_buffer   | This is time subtracted to check_walltime_limit to avoid the job is   |    Real     | 300       |
-|                         | killed before mfix has completed writing the checkpoint file          |             |           |
+| check_file              | Prefix to use for checkpoint output                                   |  String     | chk       |
 +-------------------------+-----------------------------------------------------------------------+-------------+-----------+
 | geom_chk_write          | When True, writes the EB geometry data into geom_chk_file             |  bool       | False     |
 |                         | and additionally, geom_refined_chk_file, if levelset                  |             |           |
diff --git a/docs/source_docs/inputs/InputsTimeStepping.rst b/docs/source_docs/inputs/InputsTimeStepping.rst
index 888c4f067cd3b98193055cb14a82af09a636f0c7..9dcb6e908264fb7652ddd2c05a34549b76e3cf60 100644
--- a/docs/source_docs/inputs/InputsTimeStepping.rst
+++ b/docs/source_docs/inputs/InputsTimeStepping.rst
@@ -28,6 +28,19 @@ The following inputs must be preceded by "mfix.":
 +----------------------+-----------------------------------------------------------------------+-------------+--------------+
 | tcoll_ratio          | DEM timestep equals the min collision time divided by this value      |    Real     |   50.0       |
 +----------------------+-----------------------------------------------------------------------+-------------+--------------+
+| walltime_limit       | Write a check point file before the specified walltime (HH:MM:SS)     |    String   |   ""         |
+|                      | has been reached. For example, if mfix.walltime_limit = 0:10:00, then |             |              |
+|                      | timestepping is terminated just before runtime has reached the fixed  |             |              |
+|                      | walltime, and the code performs a clean exit                          |             |              |
++----------------------+-----------------------------------------------------------------------+-------------+--------------+
+| walltime_buffer      | This time value, specified as HH:MM:SS, is used to determine whether  |    String   |   ""         |
+|                      | to plot a checkpoint file before the job is terminated by the value   |             |              |
+|                      | in walltime_limit. If job is terminated, a checkpoint file is written |             |              |
+|                      | starting at time walltime_limit minus walltime_buffer                 |             |              |
++----------------------+-----------------------------------------------------------------------+-------------+--------------+
+| clean_exit           | This input represents the name of a file that, if found in the run    |    String   |   ""         |
+|                      | folder, makes the code stop and perform a clean exit                  |             |              |
++----------------------+-----------------------------------------------------------------------+-------------+--------------+
 
 The following inputs must be preceded by "mfix." and are only relevant if running a problem to steady state.
 Currently, the criterion for setting "steady_state" to true is if "dt" is undefined in mfix.dat