diff --git a/CHANGELOG.md b/CHANGELOG.md
index c87f3f8e..a1dfa17d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- series of regrid*.py are added to GEOS_Util/post
+- Introduce series of remap_restarts Python scripts to GEOS_Util/post
+- Add a series of tests for remap_restarts
 
 ### Changed
 
diff --git a/GEOS_Util/post/CMakeLists.txt b/GEOS_Util/post/CMakeLists.txt
index ce71bc27..7de3ed32 100644
--- a/GEOS_Util/post/CMakeLists.txt
+++ b/GEOS_Util/post/CMakeLists.txt
@@ -168,3 +168,5 @@ install(PROGRAMS
   ${CMAKE_CURRENT_BINARY_DIR}/3CH.j
   DESTINATION post
   )
+
+add_subdirectory(tests)
diff --git a/GEOS_Util/post/tests/CMakeLists.txt b/GEOS_Util/post/tests/CMakeLists.txt
new file mode 100644
index 00000000..80ddc86d
--- /dev/null
+++ b/GEOS_Util/post/tests/CMakeLists.txt
@@ -0,0 +1,5 @@
+
+file(GLOB test_scripts CONFIGURE_DEPENDS ./*.py ./*.yaml)
+install(
+   PROGRAMS ${test_scripts} 
+   DESTINATION bin)
diff --git a/GEOS_Util/post/tests/c24Toc12.yaml b/GEOS_Util/post/tests/c24Toc12.yaml
new file mode 100644
index 00000000..3bd204a4
--- /dev/null
+++ b/GEOS_Util/post/tests/c24Toc12.yaml
@@ -0,0 +1,48 @@
+#
+# This template file can be filled with questionary or manually
+# 
+# 
+
+input:
+  air:
+    drymass: 1
+    hydrostatic: 0
+  shared:
+    MERRA-2: false
+    agrid: C24
+    bcs_dir: /discover/nobackup/projects/gmao/share/gmao_ops/fvInput/g5gcm/bcs/Icarus-NLv3/Icarus-NLv3_Reynolds//CF0024x6C_DE0360xPE0180/
+    expid: ''
+    ogrid: 360X180
+    rst_dir: /discover/nobackup/projects/gmao/SIteam/Remapping_Test_Cases/c24Toc12/inputs
+    yyyymmddhh: '2000041421'
+  surface:
+    zoom: '1'
+    wemin: '13'
+    # it supports three models: catch, catchcnclm40, catchcnclm45
+    catch_model: catch
+
+output:
+  shared:
+    agrid: C12
+    bcs_dir: /discover/nobackup/projects/gmao/share/gmao_ops/fvInput/g5gcm/bcs/Icarus-NLv3/Icarus-NLv3_Reynolds//CF0012x6C_DE0360xPE0180/
+    expid: hello
+    ogrid: 360X180
+    out_dir: $NOBACKUP/REMAP_TESTS/c24Toc12/
+  air:
+    remap: true
+    nlevel: '72'
+  surface:
+    split_saltwater: true
+    surflay: 50.0
+    wemin: '13'
+    remap_water: true
+    remap_catch: true
+  analysis:
+    bkg: false
+    aqua: true
+    lcv: false
+
+slurm:
+  account: g0610
+  qos: debug
+  constraint: hasw
diff --git a/GEOS_Util/post/tests/f522Toc360.yaml b/GEOS_Util/post/tests/f522Toc360.yaml
new file mode 100644
index 00000000..f4450582
--- /dev/null
+++ b/GEOS_Util/post/tests/f522Toc360.yaml
@@ -0,0 +1,47 @@
+#
+# This template file can be filled with questionary or manually
+# 
+# 
+
+input:
+  air:
+    drymass: 1
+    hydrostatic: 0
+  shared:
+    MERRA-2: false
+    agrid: C720
+    bcs_dir: /discover/nobackup/projects/gmao/share/gmao_ops/fvInput/g5gcm/bcs/Icarus_Updated/Icarus_Ostia//CF0720x6C_CF0720x6C/
+    expid: f522_fp
+    ogrid: C720
+    rst_dir: /discover/nobackup/projects/gmao/SIteam/Remapping_Test_Cases/f522Toc360/inputs/ 
+    yyyymmddhh: '2019061421'
+  surface:
+    zoom: '8'
+    wemin: '26'
+    catch_model: catch
+
+output:
+  shared:
+    agrid: C360
+    bcs_dir: /discover/nobackup/projects/gmao/share/gmao_ops/fvInput/g5gcm/bcs/Icarus-NLv3/Icarus-NLv3_Reynolds//CF0360x6C_DE0360xPE0180/
+    expid: remap
+    ogrid: 360X180
+    out_dir: $NOBACKUP/REMAP_TESTS/f522Toc360/
+  air:
+    nlevel: '72'
+    remap: true
+  surface:
+    split_saltwater: true
+    surflay: 50.0
+    wemin: '13'
+    remap_catch: true
+    remap_water: true
+  analysis:
+    bkg: true
+    aqua: true
+    lcv: true
+
+slurm:
+  account: g0610
+  qos: debug
+  constraint: hasw
diff --git a/GEOS_Util/post/tests/test_remap_cases.yaml b/GEOS_Util/post/tests/test_remap_cases.yaml
new file mode 100644
index 00000000..30640090
--- /dev/null
+++ b/GEOS_Util/post/tests/test_remap_cases.yaml
@@ -0,0 +1,7 @@
+c24Toc12:
+  base_line: '/discover/nobackup/projects/gmao/SIteam/Remapping_Test_Cases/c24Toc12/baseline/'
+  config: 'c24Toc12.yaml'
+f522Toc360:
+  base_line: '/discover/nobackup/projects/gmao/SIteam/Remapping_Test_Cases/f522Toc360/baseline/'
+  config: 'f522Toc360.yaml'
+  
diff --git a/GEOS_Util/post/tests/test_remap_restarts.py b/GEOS_Util/post/tests/test_remap_restarts.py
new file mode 100755
index 00000000..f699ba7c
--- /dev/null
+++ b/GEOS_Util/post/tests/test_remap_restarts.py
@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+#
+# source install/bin/g5_modules
+#
+# Newer GEOS code should load a module with GEOSpyD Python3 if not run:
+#   module load python/GEOSpyD/Min4.10.3_py3.9
+#
+
+import sys, getopt
+import ruamel.yaml
+import questionary
+import glob
+import subprocess as sp
+import remap_restarts 
+from remap_questions import get_config_from_questionary
+from remap_params import *
+from remap_upper import *
+from remap_lake_landice_saltwater import *
+from remap_analysis  import *
+from remap_catchANDcn  import *
+
+def compare(base, result):
+  #1) comparing nc4
+  bases   =  glob.glob(base + '/*_rst*.nc4*')
+  results =  glob.glob( result + '/*_rst*.nc4*')
+  if (len(bases) != len(results)) :
+     print(len(bases), len(results))
+     print (" number of restart out should be the same")
+     return False
+  bases.sort()
+  results.sort()
+  for b, r in zip(bases, results):
+     cmd = 'nccmp -dmgfs '+ b + ' ' + r
+     print(cmd)
+     p = sp.Popen(shlex.split(cmd), stdout=subprocess.PIPE)
+     (out, err) = p.communicate()
+     rc = p.wait()
+     out = out.decode().split()
+     if "identical." in out :
+        print('identical')
+     else: 
+        print ( f + ' is different from ' + r)
+        return False
+  return True
+
+def test_remap(config):
+
+  upper = upperair(config_obj=config)
+  upper.remap()
+  lls  = lake_landice_saltwater(config_obj=config)
+  lls.remap()
+  catch  = catchANDcn(config_obj=config)
+  catch.remap()
+  ana = analysis(config_obj=config)
+  ana.remap()
+
+
+if __name__ == '__main__' :
+
+  yaml = ruamel.yaml.YAML()
+  stream =''
+  cases_yaml = 'test_remap_cases.yaml'
+  with  open(cases_yaml, 'r') as f:
+     stream = f.read()
+  cases = yaml.load(stream)
+
+  cmd = 'whoami'
+  p = subprocess.Popen(shlex.split(cmd), stdout=subprocess.PIPE)
+  (user, err) = p.communicate()
+  p_status = p.wait()
+  user = user.decode().split()[0]  
+
+  for case, values in cases.items():
+     base_line        = values['base_line']
+     config_yaml_file = values['config']
+
+     stream =''
+     with  open(config_yaml_file, 'r') as f:
+       stream = f.read()
+     config  = yaml.load(stream)
+
+     out_dir = '/discover/nobackup/'+user+'/REMAP_TESTS/'+case+'/'
+     config['output']['shared']['out_dir'] = out_dir
+     
+     test_remap(config)
+ 
+     rc = compare(base_line, out_dir)
+     if (not rc) :
+       print ("failed in " + case)
+     else :
+       print (case +" test is successful")
+