diff --git a/ush/machine/singularity.sh b/ush/machine/singularity.sh
new file mode 100644
index 000000000..36325d30b
--- /dev/null
+++ b/ush/machine/singularity.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+
+function file_location() {
+
+  # Return the default location of external model files on disk
+
+  local external_file_fmt external_model location
+
+  external_model=${1}
+  external_file_fmt=${2}
+
+  case ${external_model} in
+
+    "*")
+      print_info_msg"\
+        External model \'${external_model}\' does not have a default
+      location. Please set a user-defined file location."
+      ;;
+
+  esac
+  echo ${location:-}
+
+}
+
+
+EXTRN_MDL_SYSBASEDIR_ICS=${EXTRN_MDL_SYSBASEDIR_ICS:-$(file_location \
+  ${EXTRN_MDL_NAME_ICS} \
+    ${FV3GFS_FILE_FMT_ICS})}
+EXTRN_MDL_SYSBASEDIR_LBCS=${EXTRN_MDL_SYSBASEDIR_LBCS:-$(file_location \
+  ${EXTRN_MDL_NAME_LBCS} \
+  ${FV3GFS_FILE_FMT_ICS})}
+
+# System scripts to source to initialize various commands within workflow
+# scripts (e.g. "module").
+if [ -z ${ENV_INIT_SCRIPTS_FPS:-""} ]; then
+  ENV_INIT_SCRIPTS_FPS=( "/usr/share/lmod/6.6/init/profile" )
+fi
+
+# Commands to run at the start of each workflow task.
+PRE_TASK_CMDS='{ ulimit -s unlimited; ulimit -a; }'
+
+# Architecture information
+WORKFLOW_MANAGER="rocoto"
+NCORES_PER_NODE=${NCORES_PER_NODE:-40}
+SCHED=${SCHED:-"slurm"}
+PARTITION_DEFAULT=${PARTITION_DEFAULT:-""}
+QUEUE_DEFAULT=${QUEUE_DEFAULT:-"batch"}
+PARTITION_HPSS=${PARTITION_HPSS:-"service"}
+QUEUE_HPSS=${QUEUE_HPSS:-"batch"}
+PARTITION_FCST=${PARTITION_FCST:-""}
+QUEUE_FCST=${QUEUE_FCST:-"batch"}
+
+# UFS SRW App specific paths
+FIXgsm=${FIXgsm:-"/contrib/global/glopara/fix/fix_am"}
+FIXaer=${FIXaer:-"/contrib/global/glopara/fix/fix_aer"}
+FIXlut=${FIXlut:-"/contrib/global/glopara/fix/fix_lut"}
+TOPO_DIR=${TOPO_DIR:-"/contrib/global/glopara/fix/fix_orog"}
+SFC_CLIMO_INPUT_DIR=${SFC_CLIMO_INPUT_DIR:-"/contrib/global/glopara/fix/fix_sfc_climo"}
+FIXLAM_NCO_BASEDIR=${FIXLAM_NCO_BASEDIR:-"/needs/to/be/specified"}
+
+RUN_CMD_SERIAL="time"
+RUN_CMD_UTILS='mpirun -np $nprocs --oversubscribe'
+RUN_CMD_FCST='mpirun -n ${PE_MEMBER01} --oversubscribe'
+RUN_CMD_POST='mpirun -np $nprocs --oversubscribe'
diff --git a/ush/valid_param_vals.sh b/ush/valid_param_vals.sh
index 2e497c030..4f5641a8e 100644
--- a/ush/valid_param_vals.sh
+++ b/ush/valid_param_vals.sh
@@ -4,7 +4,7 @@
 valid_vals_RUN_ENVIR=("nco" "community")
 valid_vals_VERBOSE=("TRUE" "true" "YES" "yes" "FALSE" "false" "NO" "no")
 valid_vals_DEBUG=("TRUE" "true" "YES" "yes" "FALSE" "false" "NO" "no")
-valid_vals_MACHINE=("WCOSS_DELL_P3" "HERA" "ORION" "JET" "ODIN" "CHEYENNE" "STAMPEDE" "LINUX" "MACOS")
+valid_vals_MACHINE=("WCOSS_DELL_P3" "HERA" "ORION" "JET" "ODIN" "CHEYENNE" "STAMPEDE" "LINUX" "MACOS" "SINGULARITY")
 valid_vals_SCHED=("slurm" "pbspro" "lsf" "lsfcray" "none")
 valid_vals_FCST_MODEL=("ufs-weather-model" "fv3gfs_aqm")
 valid_vals_WORKFLOW_MANAGER=("rocoto" "none")