diff --git a/scripts/exregional_run_post.sh b/scripts/exregional_run_post.sh
index b944ea169c..9b0f26a42f 100755
--- a/scripts/exregional_run_post.sh
+++ b/scripts/exregional_run_post.sh
@@ -182,7 +182,11 @@ to the temporary work directory (tmp_dir):
   tmp_dir = \"${tmp_dir}\"
 ===================================================================="
 else
-  post_config_fp="${UPP_DIR}/parm/postxconfig-NT-fv3lam.txt"
+  if [ ${FCST_MODEL} = "fv3gfs_aqm" ]; then
+    post_config_fp="${UPP_DIR}/parm/postxconfig-NT-fv3lam_cmaq.txt"
+  else
+    post_config_fp="${UPP_DIR}/parm/postxconfig-NT-fv3lam.txt"
+  fi
   print_info_msg "
 ====================================================================
 Copying the default post flat file specified by post_config_fp to the 
@@ -260,6 +264,11 @@ post_mn=${post_time:10:2}
 #
 # Create the input text file to the post-processor executable.
 #
+if [ ${FCST_MODEL} = "fv3gfs_aqm" ]; then
+  post_itag_add="aqfcmaq_on=.true.,"
+else
+  post_itag_add=""
+fi
 cat > itag <<EOF
 ${dyn_file}
 netcdf
@@ -269,7 +278,7 @@ FV3R
 ${phy_file}
 
  &NAMPGB
- KPO=47,PO=1000.,975.,950.,925.,900.,875.,850.,825.,800.,775.,750.,725.,700.,675.,650.,625.,600.,575.,550.,525.,500.,475.,450.,425.,400.,375.,350.,325.,300.,275.,250.,225.,200.,175.,150.,125.,100.,70.,50.,30.,20.,10.,7.,5.,3.,2.,1.,
+ KPO=47,PO=1000.,975.,950.,925.,900.,875.,850.,825.,800.,775.,750.,725.,700.,675.,650.,625.,600.,575.,550.,525.,500.,475.,450.,425.,400.,375.,350.,325.,300.,275.,250.,225.,200.,175.,150.,125.,100.,70.,50.,30.,20.,10.,7.,5.,3.,2.,1.,${post_itag_add}
  /
 EOF
 #