diff --git a/ci/cases/pr/C48_ATM.yaml b/ci/cases/pr/C48_ATM.yaml
deleted file mode 100644
index 79706556e6c..00000000000
--- a/ci/cases/pr/C48_ATM.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-experiment:
-  system: gfs
-  mode: forecast-only
-
-arguments:
-  pslot: {{ 'pslot' | getenv }}
-  app: ATM
-  resdetatmos: 48
-  comroot: {{ 'RUNTESTS' | getenv }}/COMROOT
-  expdir: {{ 'RUNTESTS' | getenv }}/EXPDIR
-  idate: 2021032312
-  edate: 2021032312
-  yaml: {{ HOMEgfs }}/ci/cases/yamls/gfs_defaults_ci.yaml
diff --git a/ci/cases/pr/C48_S2SW.yaml b/ci/cases/pr/C48_S2SW.yaml
deleted file mode 100644
index 63675645148..00000000000
--- a/ci/cases/pr/C48_S2SW.yaml
+++ /dev/null
@@ -1,14 +0,0 @@
-experiment:
-  system: gfs
-  mode: forecast-only
-
-arguments:
-  pslot: {{ 'pslot' | getenv }}
-  app: S2SW
-  resdetatmos: 48
-  resdetocean: 5.0
-  comroot: {{ 'RUNTESTS' | getenv }}/COMROOT
-  expdir: {{ 'RUNTESTS' | getenv }}/EXPDIR
-  idate: 2021032312
-  edate: 2021032312
-  yaml: {{ HOMEgfs }}/ci/cases/yamls/gfs_defaults_ci.yaml
diff --git a/ci/cases/pr/C48_S2SWA_gefs.yaml b/ci/cases/pr/C48_S2SWA_gefs.yaml
deleted file mode 100644
index d42f4cd15bf..00000000000
--- a/ci/cases/pr/C48_S2SWA_gefs.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
-experiment:
-  system: gefs
-  mode: forecast-only
-
-arguments:
-  pslot: {{ 'pslot' | getenv }}
-  app: S2SWA
-  resdetatmos: 48
-  resdetocean: 5.0
-  resensatmos: 48
-  nens: 2
-  gfs_cyc: 1
-  start: cold
-  comroot: {{ 'RUNTESTS' | getenv }}/COMROOT
-  expdir: {{ 'RUNTESTS' | getenv }}/EXPDIR
-  idate: 2021032312
-  edate: 2021032312
-  yaml: {{ HOMEgfs }}/ci/cases/yamls/gefs_ci_defaults.yaml
diff --git a/ci/cases/pr/C48mx500_3DVarAOWCDA.yaml b/ci/cases/pr/C48mx500_3DVarAOWCDA.yaml
deleted file mode 100644
index 6e9fc6d3de4..00000000000
--- a/ci/cases/pr/C48mx500_3DVarAOWCDA.yaml
+++ /dev/null
@@ -1,23 +0,0 @@
-experiment:
-  system: gfs
-  mode: cycled
-
-arguments:
-  pslot: {{ 'pslot' | getenv }}
-  app: S2S
-  resdetatmos: 48
-  resdetocean: 5.0
-  comroot: {{ 'RUNTESTS' | getenv }}/COMROOT
-  expdir: {{ 'RUNTESTS' | getenv }}/EXPDIR
-  icsdir: {{ 'ICSDIR_ROOT' | getenv }}/C48mx500
-  idate: 2021032412
-  edate: 2021032418
-  nens: 0
-  gfs_cyc: 0
-  start: warm
-  yaml: {{ HOMEgfs }}/ci/cases/yamls/soca_gfs_defaults_ci.yaml
-
-skip_ci_on_host:
-  - orion
-  - hera
-  - hercules
diff --git a/ci/cases/pr/C96C48_hybatmDA.yaml b/ci/cases/pr/C96C48_hybatmDA.yaml
deleted file mode 100644
index d08374d4e0e..00000000000
--- a/ci/cases/pr/C96C48_hybatmDA.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-experiment:
-  system: gfs
-  mode: cycled
-
-arguments:
-  pslot: {{ 'pslot' | getenv }}
-  app: ATM
-  resdetatmos: 96
-  resdetocean: 5.0
-  resensatmos: 48
-  comroot: {{ 'RUNTESTS' | getenv }}/COMROOT
-  expdir: {{ 'RUNTESTS' | getenv }}/EXPDIR
-  icsdir: {{ 'ICSDIR_ROOT' | getenv }}/C96C48
-  idate: 2021122018
-  edate: 2021122106
-  nens: 2
-  gfs_cyc: 1
-  start: cold
-  yaml: {{ HOMEgfs }}/ci/cases/yamls/gfs_defaults_ci.yaml
diff --git a/ci/cases/pr/C96_atm3DVar.yaml b/ci/cases/pr/C96_atm3DVar.yaml
deleted file mode 100644
index d992938f7f4..00000000000
--- a/ci/cases/pr/C96_atm3DVar.yaml
+++ /dev/null
@@ -1,17 +0,0 @@
-experiment:
-  system: gfs
-  mode: cycled
-
-arguments:
-  pslot: {{ 'pslot' | getenv }}
-  app: ATM
-  resdetatmos: 96
-  comroot: {{ 'RUNTESTS' | getenv }}/COMROOT
-  expdir: {{ 'RUNTESTS' | getenv }}/EXPDIR
-  icsdir: {{ 'ICSDIR_ROOT' | getenv }}/C96C48
-  idate: 2021122018
-  edate: 2021122106
-  nens: 0
-  gfs_cyc: 1
-  start: cold
-  yaml: {{ HOMEgfs }}/ci/cases/yamls/gfs_defaults_ci.yaml
diff --git a/ci/scripts/driver.sh b/ci/scripts/driver.sh
index 5fc13ea5242..9e9f17bd053 100755
--- a/ci/scripts/driver.sh
+++ b/ci/scripts/driver.sh
@@ -12,6 +12,7 @@ set -eux
 # development branch for the global-workflow repo.  It then stages tests directories per
 # PR number and calls clone-build_ci.sh to perform a clone and full build from the PR.
 # It then is ready to run a suite of regression tests with various configurations
+# no operation line for self test
 #######################################################################################
 
 #################################################################