diff --git a/configuration/scripts/cice.batch.csh b/configuration/scripts/cice.batch.csh
index 024270039..04f397034 100755
--- a/configuration/scripts/cice.batch.csh
+++ b/configuration/scripts/cice.batch.csh
@@ -104,6 +104,22 @@ cat >> ${jobfile} << EOFB
 ###PBS -m be
 EOFB
 
+else if (${ICE_MACHINE} =~ nrlssc*) then
+# nrlssc queue system has nodes with different task per node
+if (${taskpernode} <= 12) set tpnstr = 'twelve'
+if (${taskpernode} == 20) set tpnstr = 'twenty'
+if (${taskpernode} == 24) set tpnstr = 'twentyfour'
+if (${taskpernode} == 28) set tpnstr = 'twentyeight'
+
+cat >> ${jobfile} <<EOFB
+#PBS -N ${shortcase}
+#PBS -q ${queue}
+#PBS -l nodes=${nnodes}:ppn=${taskpernode}:${tpnstr}
+#PBS -l walltime=${batchtime}
+#PBS -j oe
+#PBS -W umask=022
+EOFB
+
 else if (${ICE_MACHINE} =~ onyx*) then
 # special for onyx with 44 cores per node and constraint on mpiprocs
 set tpn1 = ${taskpernode}
diff --git a/configuration/scripts/cice.launch.csh b/configuration/scripts/cice.launch.csh
index 40b8996b4..904a0b636 100755
--- a/configuration/scripts/cice.launch.csh
+++ b/configuration/scripts/cice.launch.csh
@@ -57,6 +57,19 @@ mpiexec_mpt -np ${ntasks} omplace ./cice >&! \$ICE_RUNLOG_FILE
 EOFR
 endif
 
+#=======
+else if (${ICE_MACHINE} =~ nrlssc*) then
+if (${ICE_COMMDIR} =~ serial*) then
+cat >> ${jobfile} << EOFR
+./cice >&! \$ICE_RUNLOG_FILE
+EOFR
+else
+cat >> ${jobfile} << EOFR
+mpirun -np ${ntasks} ./cice >&! \$ICE_RUNLOG_FILE
+EOFR
+endif
+
+
 #=======
 else if (${ICE_MACHINE} =~ onyx*) then
 cat >> ${jobfile} << EOFR
diff --git a/configuration/scripts/machines/Macros.nrlssc_gnu b/configuration/scripts/machines/Macros.nrlssc_gnu
new file mode 100644
index 000000000..91d2fae0b
--- /dev/null
+++ b/configuration/scripts/machines/Macros.nrlssc_gnu
@@ -0,0 +1,59 @@
+#==============================================================================
+# Makefile macros for NRLSSC GCC and openmpi compilers
+#==============================================================================
+
+# specific Netcdf and MPI paths, since we use /common instead of /usr
+
+#MPIHOME      := /common/openmpi/gnu10.1.0/3.1.6
+#CDFHOME      := /common/netcdf/gnu10.1.0/openmpi3.1.6/4.7.4
+
+# use MY defined vars from .setenv_linux
+MPIHOME      := ${MPI_HOME}
+CDFHOME      := ${NETCDF_HOME}
+
+CPP          := cpp
+CPPDEFS      := -DFORTRANUNDERSCORE -DNO_R16 -DHAVE_F2008_CONTIGUOUS -DLINUX -DCPRINTEL ${ICE_CPPDEFS}
+CFLAGS       := -c -O2
+
+FIXEDFLAGS   := -ffixed-line-length-132
+FREEFLAGS    := -ffree-form
+FFLAGS       := -fconvert=big-endian -fbacktrace -ffree-line-length-none
+FFLAGS_NOOPT := -O0
+
+ifeq ($(ICE_BLDDEBUG), true)
+  FFLAGS     += -O0 -g -fcheck=bounds -finit-real=nan -fimplicit-none -ffpe-trap=invalid,zero,overflow
+else
+  FFLAGS     += -O2
+endif
+
+FC := $(MPIHOME)/bin/mpif90
+
+CC:= $(MPIHOME)/bin/mpicc
+
+MPICC:= $(MPIHOME)/bin/mpicc
+
+MPIFC:= $(MPIHOME)/bin/mpif90
+LD:= $(FC) 
+
+NETCDF_PATH := $(CDFHOME)
+
+ifeq ($(ICE_IOTYPE), netcdf)
+    # NETCDF_PATH := $(shell nc-config --prefix)
+    INCLDIR := $(INCLDIR) -I$(NETCDF_PATH)/include
+    LIB_NETCDF := $(NETCDF_PATH)/lib
+    LIB_PNETCDF := 
+    LD      := $(LD) -Wl,-rpath,$(LIB_NETCDF)
+    SLIBS   := -L$(LIB_NETCDF) -lnetcdf -lnetcdff
+else
+    SLIBS   := 
+endif
+
+LIB_MPI := 
+SCC:= gcc
+SFC:= gfortran
+
+ifeq ($(ICE_THREADED), true) 
+   LDFLAGS += -fopenmp
+   CFLAGS += -fopenmp
+   FFLAGS += -fopenmp
+endif
diff --git a/configuration/scripts/machines/env.nrlssc_gnu b/configuration/scripts/machines/env.nrlssc_gnu
new file mode 100755
index 000000000..f050a61b8
--- /dev/null
+++ b/configuration/scripts/machines/env.nrlssc_gnu
@@ -0,0 +1,16 @@
+#!/bin/csh -f
+
+setenv ICE_MACHINE_MACHNAME NRLSSC
+setenv ICE_MACHINE_MACHINFO "NRLSSC"
+setenv ICE_MACHINE_ENVNAME gnu
+setenv ICE_MACHINE_ENVINFO "gnu"
+setenv ICE_MACHINE_MAKE gmake
+setenv ICE_MACHINE_WKDIR /u/data/hebert/CICE_RUNS
+setenv ICE_MACHINE_INPUTDATA /u/data/hebert/CICE_RUNS
+setenv ICE_MACHINE_BASELINE /u/data/hebert/CICE_BASELINE
+setenv ICE_MACHINE_SUBMIT "qsub "
+setenv ICE_MACHINE_ACCT P00000000
+setenv ICE_MACHINE_QUEUE "standard"
+setenv ICE_MACHINE_TPNODE 20    # tasks per node
+setenv ICE_MACHINE_BLDTHRDS 1
+setenv ICE_MACHINE_QSTAT "qstat "
diff --git a/configuration/scripts/tests/gridsys_suite.ts b/configuration/scripts/tests/gridsys_suite.ts
index 54eeb45ea..afc91fa4f 100644
--- a/configuration/scripts/tests/gridsys_suite.ts
+++ b/configuration/scripts/tests/gridsys_suite.ts
@@ -3,6 +3,7 @@ smoke          gx3     8x2        diag1,run5day
 restart        gx3     4x2        debug,diag1
 smoke          gbox80  1x1        box2001
 smoke          gbox80  1x1        boxslotcyl
+smoke          gbox80  2x4        boxnodyn
 smoke	       gbox80  2x2        boxsymn
 smoke	       gbox80  4x2        boxsyme
 smoke	       gbox80  4x1        boxsymne
@@ -13,11 +14,11 @@ smoke	       gbox80  8x1        boxislandsn
 smoke	       gbox80  4x2        boxislandse
 smoke	       gbox80  2x4        boxislandsne
 
-
 smoke          gx3     8x2        diag1,run5day,gridcd
 restart        gx3     4x2        debug,diag1,gridcd
 smoke          gbox80  1x1        box2001,gridcd
 smoke          gbox80  1x1        boxslotcyl,gridcd
+smoke          gbox80  2x4        boxnodyn,gridcd
 smoke	       gbox80  2x2        boxsymn,gridcd
 smoke	       gbox80  4x2        boxsyme,gridcd
 smoke	       gbox80  4x1        boxsymne,gridcd