diff --git a/CMakeLists.txt b/CMakeLists.txt
index a5fb1df8f9..4f3ca9aec6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -162,6 +162,7 @@ list(APPEND fms_fortran_src_files
   topography/topography.F90
   tracer_manager/tracer_manager.F90
   tridiagonal/tridiagonal.F90
+  libFMS.F90
 )
 
 # Collect FMS C source files
diff --git a/Makefile.am b/Makefile.am
index 9e04e8463e..4f0df07e8e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -40,7 +40,8 @@ SUBDIRS = \
   mpp \
   memutils \
   fms2_io \
-  fms affinity \
+  fms \
+  affinity \
   mosaic \
   time_manager \
   axis_utils \
@@ -72,6 +73,19 @@ include_HEADERS = include/file_version.h include/fms_platform.h
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = FMS.pc
 
+## Build libFMS module
+AM_CPPFLAGS = -I${top_srcdir}/include -I${top_srcdir}/mpp/include
+AM_FCFLAGS = $(FC_MODINC). $(FC_MODOUT)$(MODDIR)
+
+noinst_LTLIBRARIES = libFMS_mod.la
+libFMS_mod_la_SOURCES = libFMS.F90
+
+fms.$(FC_MODEXT): .mods/*_mod.$(FC_MODEXT) 
+
+nodist_include_HEADERS = libFMS_mod.la 
+
+include $(top_srcdir)/mkmods.mk
+
 # Prepare CMake files for installation.  This is to help
 # packages build using CMake to more easily use the libFMS
 # library.
diff --git a/data_override/get_grid_version_fms2io.F90 b/data_override/get_grid_version_fms2io.F90
index 134e7ca3bc..930ff9f297 100644
--- a/data_override/get_grid_version_fms2io.F90
+++ b/data_override/get_grid_version_fms2io.F90
@@ -1,3 +1,23 @@
+!***********************************************************************
+!*                   GNU Lesser General Public License
+!*
+!* This file is part of the GFDL Flexible Modeling System (FMS).
+!*
+!* FMS is free software: you can redistribute it and/or modify it under
+!* the terms of the GNU Lesser General Public License as published by
+!* the Free Software Foundation, either version 3 of the License, or (at
+!* your option) any later version.
+!*
+!* FMS is distributed in the hope that it will be useful, but WITHOUT
+!* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+!* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+!* for more details.
+!*
+!* You should have received a copy of the GNU Lesser General Public
+!* License along with FMS.  If not, see <http://www.gnu.org/licenses/>.
+!***********************************************************************
+!> @file
+!! @brief fms2_io implementations of grid routines 
 module get_grid_version_fms2io_mod
 use constants_mod, only: PI
 use mpp_mod, only : mpp_error,FATAL,NOTE, mpp_min, mpp_max
diff --git a/data_override/get_grid_version_mpp.F90 b/data_override/get_grid_version_mpp.F90
index de409c5b0c..d4322698b4 100644
--- a/data_override/get_grid_version_mpp.F90
+++ b/data_override/get_grid_version_mpp.F90
@@ -1,3 +1,23 @@
+!***********************************************************************
+!*                   GNU Lesser General Public License
+!*
+!* This file is part of the GFDL Flexible Modeling System (FMS).
+!*
+!* FMS is free software: you can redistribute it and/or modify it under
+!* the terms of the GNU Lesser General Public License as published by
+!* the Free Software Foundation, either version 3 of the License, or (at
+!* your option) any later version.
+!*
+!* FMS is distributed in the hope that it will be useful, but WITHOUT
+!* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+!* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+!* for more details.
+!*
+!* You should have received a copy of the GNU Lesser General Public
+!* License along with FMS.  If not, see <http://www.gnu.org/licenses/>.
+!***********************************************************************
+!> @file
+!! @brief mpp_io implementations of grid routines 
 module get_grid_version_mpp_mod
 use constants_mod, only: PI
 use mpp_mod, only : mpp_error,FATAL,WARNING,NOTE, mpp_min, mpp_max
diff --git a/libFMS.F90 b/libFMS.F90
new file mode 100644
index 0000000000..067a3a4fca
--- /dev/null
+++ b/libFMS.F90
@@ -0,0 +1,423 @@
+!***********************************************************************
+!*                   GNU Lesser General Public License
+!*
+!* This file is part of the GFDL Flexible Modeling System (FMS).
+!*
+!* FMS is free software: you can redistribute it and/or modify it under
+!* the terms of the GNU Lesser General Public License as published by
+!* the Free Software Foundation, either version 3 of the License, or (at
+!* your option) any later version.
+!*
+!* FMS is distributed in the hope that it will be useful, but WITHOUT
+!* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+!* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+!* for more details.
+!*
+!* You should have received a copy of the GNU Lesser General Public
+!* License along with FMS.  If not, see <http://www.gnu.org/licenses/>.
+!***********************************************************************
+!> @file
+!
+!> @author
+!> Ryan Mulhall
+!>
+!> @date
+!> 2/2021
+!>
+!> @brief
+!> A convenience file to use any FMS routines, functions, values
+!>
+!> Imports all supported FMS modules so that any public interfaces,
+!! variables or routines can be used via this module. Excludes mpp_io modules
+!! and routines. Overloaded type operators/assignments cannot be imported individually
+!! (ie. `use fms, only: OPERATOR(*)` includes any defined '*' operators within FMS).
+!!
+!! Remappings due to conflicts:
+!!
+!!           get_mosaic_tile_grid from mosaic2(fms2_io) => mosaic2_get_mosaic_tile_grid
+!!
+!!           read_data from interpolator_mod(fms2_io)   => interpolator_read_data
+!!
+!!           ZERO from interpolator_mod(mpp_parameter)  => INTERPOLATOR_ZERO
+!!
+!! Not in this module:
+!!
+!!                     axis_utils_mod, fms_io_mod, time_interp_external_mod
+!!                     get_grid_version_mpp_mod, mpp_io_mod, mosaic_mod,
+!!                     fms_mod(partial, old io excluded), drifters modules
+!!
+!! A full list of supported interfaces and public types intended for use via
+!! this module is provided in the [supported_interfaces.md](../../supported_interfaces.md)
+!! file.
+
+module fms
+
+  !> import each FMS module's public routines/functions, interfaces, and variables
+  !! done explicitly to avoid including any unwanted/depracated routines/modules
+
+  !> affinity
+  use fms_affinity_mod, only: fms_affinity_init, fms_affinity_get, &
+                              fms_affinity_set
+
+  !> amip_interp
+  use amip_interp_mod, only: amip_interp_init, get_amip_sst, get_amip_ice, &
+                             amip_interp_new,amip_interp_del, amip_interp_type, &
+                             assignment(=), i_sst, j_sst, sst_ncep, sst_anom, &
+                             forecast_mode, use_ncep_sst
+  !> astronomy
+  use astronomy_mod, only: astronomy_init, get_period, set_period, &
+                           set_orbital_parameters, get_orbital_parameters, &
+                           set_ref_date_of_ae, get_ref_date_of_ae,  &
+                           diurnal_solar, daily_mean_solar, annual_mean_solar,  &
+                           astronomy_end, universal_time, orbital_time
+
+  !> axis_utils
+  use axis_utils2_mod, only: get_axis_cart, get_axis_modulo, lon_in_range, &
+                             tranlon, frac_index, nearest_index, interp_1d, &
+                             get_axis_modulo_times, axis_edges
+
+  !>block_control
+  use block_control_mod, only: block_control_type, define_blocks, &
+                               define_blocks_packed
+
+  !> column_diagnostics
+  use column_diagnostics_mod, only: column_diagnostics_init, &
+                                    initialize_diagnostic_columns, &
+                                    column_diagnostics_header, &
+                                    close_column_diagnostics_units
+
+  !> constants
+  use constants_mod
+
+  !> coupler
+  use coupler_types_mod, only: coupler_types_init, coupler_type_copy, &
+                               coupler_type_spawn, coupler_type_set_diags, &
+                               coupler_type_write_chksums, coupler_type_send_data, &
+                               coupler_type_data_override, coupler_type_register_restarts, &
+                               coupler_type_restore_state, coupler_type_increment_data, &
+                               coupler_type_rescale_data, coupler_type_copy_data, &
+                               coupler_type_redistribute_data, coupler_type_destructor, &
+                               coupler_type_initialized, coupler_type_extract_data, &
+                               coupler_type_set_data,coupler_type_copy_1d_2d, &
+                               coupler_type_copy_1d_3d, coupler_3d_values_type, &
+                               coupler_3d_field_type, coupler_3d_bc_type, &
+                               coupler_2d_values_type, coupler_2d_field_type, &
+                               coupler_2d_bc_type, coupler_1d_values_type, &
+                               coupler_1d_field_type, coupler_1d_bc_type, &
+                               ind_pcair, ind_u10, ind_psurf, ind_alpha, ind_csurf, &
+                               ind_sc_no, ind_flux, ind_deltap, ind_kw, ind_flux0, &
+                               ind_deposition, ind_runoff
+  use ensemble_manager_mod, only: ensemble_manager_init, get_ensemble_id, get_ensemble_size, &
+                               get_ensemble_pelist, ensemble_pelist_setup, &
+                               get_ensemble_filter_pelist
+  use atmos_ocean_fluxes_mod, only: atmos_ocean_fluxes_init, atmos_ocean_type_fluxes_init, &
+                               aof_set_coupler_flux
+
+  !> data_override
+  use data_override_mod, only: data_override_init, data_override, &
+                               data_override_unset_domains, data_override_UG
+
+  !> diag_integral
+  use diag_integral_mod, only: diag_integral_init, diag_integral_field_init, &
+                               sum_diag_integral_field, diag_integral_output, &
+                               diag_integral_end
+
+  !> diag_manager
+  !! includes imports from submodules made public
+  use diag_manager_mod, only: diag_manager_init, send_data, send_tile_averaged_data, &
+                           diag_manager_end, register_diag_field, register_static_field, &
+                           diag_axis_init, get_base_time, get_base_date, need_data, &
+                           DIAG_ALL, DIAG_OCEAN, DIAG_OTHER, get_date_dif, DIAG_SECONDS,&
+                           DIAG_MINUTES, DIAG_HOURS, DIAG_DAYS, DIAG_MONTHS, DIAG_YEARS, &
+                           get_diag_global_att, set_diag_global_att, diag_field_add_attribute, &
+                           diag_field_add_cell_measures, get_diag_field_id, &
+                           diag_axis_add_attribute, diag_grid_init, diag_grid_end, &
+                           diag_manager_set_time_end, diag_send_complete, &
+                           diag_send_complete_instant, DIAG_FIELD_NOT_FOUND
+
+  !> exchange
+  use xgrid_mod, only: xmap_type, setup_xmap, set_frac_area, put_to_xgrid, &
+                       get_from_xgrid, xgrid_count, some, conservation_check, &
+                       xgrid_init, AREA_ATM_SPHERE, AREA_OCN_SPHERE, AREA_ATM_MODEL, &
+                       AREA_OCN_MODEL, get_ocean_model_area_elements, grid_box_type, &
+                       get_xmap_grid_area, put_to_xgrid_ug, get_from_xgrid_ug, &
+                       set_frac_area_ug, FIRST_ORDER, SECOND_ORDER, stock_move_ug, &
+                       stock_move, stock_type, stock_print, get_index_range, &
+                       stock_integrate_2d
+  use stock_constants_mod, only: NELEMS, ISTOCK_WATER, ISTOCK_HEAT, ISTOCK_SALT, &
+                       ISTOCK_TOP, ISTOCK_BOTTOM, ISTOCK_SIDE, stocks_file, &
+                       stocks_report, stocks_report_init, stocks_set_init_time
+
+  !> field manager
+  use field_manager_mod, only: field_manager_init, field_manager_end, find_field_index, &
+                         get_field_info, &
+                         get_field_method, get_field_methods, parse, fm_change_list, &
+                         fm_change_root, fm_dump_list, fm_exists, fm_get_index, &
+                         fm_get_current_list, fm_get_length, fm_get_type, fm_get_value, &
+                         fm_intersection, fm_init_loop, &
+                         fm_loop_over_list, fm_new_list, fm_new_value, &
+                         fm_reset_loop, fm_return_root, &
+                         fm_modify_name, fm_query_method, fm_find_methods, fm_copy_list, &
+                         fm_set_verbosity, fm_field_name_len, fm_path_name_len, &
+                         fm_string_len, fm_type_name_len, NUM_MODELS, NO_FIELD, &
+                         MODEL_ATMOS, MODEL_OCEAN, MODEL_LAND, MODEL_ICE, MODEL_COUPLER, &
+                         fm_array_list_def, method_type, method_type_short, &
+                         method_type_very_short, fm_list_iter_type, default_method
+  use fm_util_mod, only: fm_util_start_namelist, fm_util_end_namelist, &
+                         fm_util_check_for_bad_fields, fm_util_set_caller, &
+                         fm_util_reset_caller, fm_util_set_no_overwrite, &
+                         fm_util_reset_no_overwrite, fm_util_set_good_name_list, &
+                         fm_util_reset_good_name_list, fm_util_get_length, &
+                         fm_util_get_integer, fm_util_get_logical, fm_util_get_real, &
+                         fm_util_get_string, fm_util_get_integer_array, &
+                         fm_util_get_logical_array, fm_util_get_real_array, &
+                         fm_util_get_string_array, fm_util_set_value, &
+                         fm_util_set_value_integer_array, fm_util_set_value_logical_array, &
+                         fm_util_set_value_real_array, fm_util_set_value_string_array, &
+                         fm_util_set_value_integer, fm_util_set_value_logical, &
+                         fm_util_set_value_real, fm_util_set_value_string, &
+                         fm_util_get_index_list, fm_util_get_index_string, &
+                         fm_util_default_caller
+
+  !> fms2_io
+  use fms2_io_mod, only: unlimited, FmsNetcdfFile_t, FmsNetcdfDomainFile_t, &
+                         FmsNetcdfUnstructuredDomainFile_t, open_file, open_virtual_file, &
+                         close_file, register_axis, register_field, register_restart_field, &
+                         write_data, read_data, write_restart, write_new_restart, &
+                         read_restart, read_new_restart, global_att_exists, &
+                         variable_att_exists, register_global_attribute, &
+                         register_variable_attribute, get_global_attribute, &
+                         get_variable_attribute, get_num_dimensions, &
+                         get_dimension_names, dimension_exists, is_dimension_unlimited, &
+                         get_dimension_size, get_num_variables, get_variable_names, &
+                         variable_exists, get_variable_num_dimensions, &
+                         get_variable_dimension_names, get_variable_size, &
+                         get_compute_domain_dimension_indices, &
+                         get_global_io_domain_indices, Valid_t, get_valid, is_valid, &
+                         get_unlimited_dimension_name, get_variable_unlimited_dimension_index, &
+                         file_exists, compressed_start_and_count, get_variable_sense, &
+                         get_variable_missing, get_variable_units, get_time_calendar, &
+                         open_check, is_registered_to_restart, check_if_open, &
+                         set_fileobj_time_name, is_dimension_registered, &
+                         fms2_io_init, get_mosaic_tile_grid, &
+                         write_restart_bc, read_restart_bc, get_filename_appendix, & !> 2021.02-a1
+                         set_filename_appendix, get_instance_filename, &
+                         nullify_filename_appendix, ascii_read, get_mosaic_tile_file, &
+                         parse_mask_table
+  ! used via fms2_io
+  ! fms_io_utils_mod, fms_netcdf_domain_io_mod, netcdf_io_mod,
+  ! fms_netcdf_unstructured_domain_io_mod, blackboxio
+
+  !> fms
+  !! routines that don't conflict with fms2_io
+  use fms_mod, only: fms_init, fms_end, error_mesg, fms_error_handler, check_nml_error, &
+                     monotonic_array, string_array_index
+
+  !> horiz_interp
+  use horiz_interp_mod, only: horiz_interp, horiz_interp_new, horiz_interp_del, &
+                              horiz_interp_init, horiz_interp_end
+  use horiz_interp_type_mod, only: horiz_interp_type, assignment(=), CONSERVE, &
+                              BILINEAR, SPHERICA, BICUBIC, stats
+  !! used via horiz_interp
+  ! horiz_interp_bicubic_mod, horiz_interp_bilinear_mod
+  ! horiz_interp_conserve_mod, horiz_interp_spherical_mod
+
+  !> interpolator
+  use interpolator_mod, only: interpolator_init, interpolator, interpolate_type_eq, &
+                              obtain_interpolator_time_slices, unset_interpolator_time_flag, &
+                              interpolator_end, init_clim_diag, query_interpolator, &
+                              interpolate_type, CONSTANT, &
+                              INTERP_WEIGHTED_P, INTERP_LINEAR_P, INTERP_LOG_P, &
+                              INTERPOLATOR_ZERO=>ZERO, & !! conflicts with mpp_parameter's ZERO
+                              interpolator_read_data=>read_data !! conflicts with fms2_io interface
+
+  !> memutils
+  use memutils_mod, only: memutils_init, print_memuse_stats
+
+  !> monin_obukhov
+  use monin_obukhov_mod, only: monin_obukhov_init, monin_obukhov_end, &
+                               mo_drag, mo_profile, mo_diff, stable_mix
+  use monin_obukhov_inter, only: monin_obukhov_diff, monin_obukhov_drag_1d, &
+                               monin_obukhov_solve_zeta, monin_obukhov_derivative_t, &
+                               monin_obukhov_derivative_m, monin_obukhov_profile_1d, &
+                               monin_obukhov_integral_m, monin_obukhov_integral_tq, &
+                               monin_obukhov_stable_mix
+
+  !> mosaic
+  use mosaic2_mod, only: get_mosaic_ntiles, get_mosaic_ncontacts, &
+                      get_mosaic_grid_sizes, get_mosaic_contact, &
+                      get_mosaic_xgrid_size, get_mosaic_xgrid, &
+                      calc_mosaic_grid_area, calc_mosaic_grid_great_circle_area, &
+                      is_inside_polygon, &
+                      mosaic2_get_mosaic_tile_grid => get_mosaic_tile_grid !overloaded in fms2_io
+  use grid_mod, only: get_grid_ntiles, get_grid_size, get_grid_cell_centers, &
+                      get_grid_cell_vertices, get_grid_cell_Area, get_grid_comp_area, &
+                      define_cube_mosaic
+  use gradient_mod, only: gradient_cubic, calc_cubic_grid_info
+
+  !> mpp
+  use mpp_mod, only: stdin, stdout, stderr, &
+                     stdlog, lowercase, uppercase, mpp_error, mpp_error_state, &
+                     mpp_set_warn_level, mpp_sync, mpp_sync_self, mpp_set_stack_size, &
+                     mpp_pe, mpp_npes, mpp_root_pe, mpp_set_root_pe, mpp_declare_pelist, &
+                     mpp_get_current_pelist, mpp_set_current_pelist, &
+                     mpp_get_current_pelist_name, mpp_clock_id, mpp_clock_set_grain, &
+                     mpp_record_timing_data, get_unit, read_ascii_file, read_input_nml, &
+                     mpp_clock_begin, mpp_clock_end, get_ascii_file_num_lines, &
+                     mpp_record_time_start, mpp_record_time_end, mpp_chksum, &
+                     mpp_max, mpp_min, mpp_sum, mpp_transmit, mpp_send, mpp_recv, &
+                     mpp_sum_ad, mpp_broadcast, mpp_init, mpp_exit, mpp_gather, &
+                     mpp_scatter, mpp_alltoall, mpp_type, mpp_byte, mpp_type_create, &
+                     mpp_type_free, input_nml_file, INPUT_STR_LENGTH
+  use mpp_parameter_mod,only:MAXPES, MPP_VERBOSE, MPP_DEBUG, ALL_PES, ANY_PE, NULL_PE, &
+                     NOTE, WARNING, FATAL, MPP_WAIT, MPP_READY, MAX_CLOCKS, &
+                     MAX_EVENT_TYPES, MAX_EVENTS, MPP_CLOCK_SYNC, MPP_CLOCK_DETAILED, &
+                     CLOCK_COMPONENT, CLOCK_SUBCOMPONENT, CLOCK_MODULE_DRIVER, &
+                     CLOCK_MODULE, CLOCK_ROUTINE, CLOCK_LOOP, CLOCK_INFRA, MAX_BINS, &
+                     EVENT_ALLREDUCE, EVENT_BROADCAST, EVENT_RECV, EVENT_SEND, EVENT_WAIT, &
+                     EVENT_ALLTOALL, EVENT_TYPE_CREATE, EVENT_TYPE_FREE, &
+                     DEFAULT_TAG, COMM_TAG_1, COMM_TAG_2, COMM_TAG_3, COMM_TAG_4, &
+                     COMM_TAG_5,  COMM_TAG_6,  COMM_TAG_7,  COMM_TAG_8, &
+                     COMM_TAG_9,  COMM_TAG_10, COMM_TAG_11, COMM_TAG_12, &
+                     COMM_TAG_13, COMM_TAG_14, COMM_TAG_15, COMM_TAG_16, &
+                     COMM_TAG_17, COMM_TAG_18, COMM_TAG_19, COMM_TAG_20, &
+                     MPP_FILL_INT, MPP_FILL_FLOAT, MPP_FILL_DOUBLE, &
+                     GLOBAL_DATA_DOMAIN, CYCLIC_GLOBAL_DOMAIN, BGRID_NE, &
+                     BGRID_SW, CGRID_NE, CGRID_SW, DGRID_NE, DGRID_SW, &
+                     FOLD_WEST_EDGE, FOLD_EAST_EDGE, FOLD_SOUTH_EDGE, &
+                     FOLD_NORTH_EDGE, WUPDATE, EUPDATE, SUPDATE, NUPDATE, &
+                     XUPDATE, YUPDATE, BITWISE_EXACT_SUM, NON_BITWISE_EXACT_SUM, &
+                     MPP_DOMAIN_TIME, WEST, EAST, SOUTH, NORTH, SCALAR_BIT, SCALAR_PAIR, &
+                     BITWISE_EFP_SUM, NORTH_EAST, SOUTH_EAST, SOUTH_WEST, NORTH_WEST, &
+                     AGRID, GLOBAL, CYCLIC, DOMAIN_ID_BASE, CENTER, CORNER, &
+                     MAX_DOMAIN_FIELDS, MAX_TILES, ZERO, NINETY, MINUS_NINETY, &
+                     ONE_HUNDRED_EIGHTY, NONBLOCK_UPDATE_TAG, EDGEUPDATE, EDGEONLY, &
+                     NONSYMEDGEUPDATE, NONSYMEDGE
+  use mpp_data_mod, only: stat, mpp_stack, ptr_stack, status, ptr_status, sync, &
+                     ptr_sync, mpp_from_pe, ptr_from, remote_Data_loc, &
+                     ptr_remote, mpp_domains_stack, ptr_domains_stack, &
+                     mpp_domains_stack_nonblock, ptr_domains_stack_nonblock
+  use mpp_utilities_mod, only: mpp_array_global_min_max
+  use mpp_memutils_mod, only: mpp_print_memuse_stats, mpp_mem_dump, &
+                     mpp_memuse_begin, mpp_memuse_end
+  use mpp_efp_mod, only: mpp_reproducing_sum, mpp_efp_list_sum_across_PEs, &
+                     mpp_efp_plus, mpp_efp_minus, mpp_efp_to_real, &
+                     mpp_real_to_efp, mpp_efp_real_diff, operator(+), &
+                     operator(-), assignment(=), mpp_query_efp_overflow_error, &
+                     mpp_reset_efp_overflow_error, mpp_efp_type
+  use mpp_domains_mod, only: domain_axis_spec, domain1D, domain2D, DomainCommunicator2D, &
+                     nest_domain_type, mpp_group_update_type, &
+                     mpp_domains_set_stack_size, mpp_get_compute_domain, &
+                     mpp_get_compute_domains, mpp_get_data_domain, &
+                     mpp_get_global_domain, mpp_get_domain_components, &
+                     mpp_get_layout, mpp_get_pelist, operator(.EQ.), operator(.NE.), &
+                     mpp_domain_is_symmetry, mpp_domain_is_initialized, &
+                     mpp_get_neighbor_pe, mpp_nullify_domain_list, &
+                     mpp_set_compute_domain, mpp_set_data_domain, mpp_set_global_domain, &
+                     mpp_get_memory_domain, mpp_get_domain_shift, &
+                     mpp_domain_is_tile_root_pe, mpp_get_tile_id, &
+                     mpp_get_domain_extents, mpp_get_current_ntile, &
+                     mpp_get_ntile_count, mpp_get_tile_list, mpp_get_tile_npes, &
+                     mpp_get_domain_root_pe, mpp_get_tile_pelist, &
+                     mpp_get_tile_compute_domains, mpp_get_num_overlap, &
+                     mpp_get_overlap, mpp_get_io_domain, mpp_get_domain_pe, &
+                     mpp_get_domain_tile_root_pe, mpp_get_domain_name, &
+                     mpp_get_io_domain_layout, mpp_copy_domain, mpp_set_domain_symmetry, &
+                     mpp_get_update_pelist, mpp_get_update_size, &
+                     mpp_get_domain_npes, mpp_get_domain_pelist, &
+                     mpp_clear_group_update, mpp_group_update_initialized, &
+                     mpp_group_update_is_set, mpp_get_global_domains, &
+                     mpp_global_field, mpp_global_max, mpp_global_min, mpp_global_sum, &
+                     mpp_global_sum_tl, mpp_global_sum_ad, mpp_broadcast_domain, &
+                     mpp_domains_init, mpp_domains_exit, mpp_redistribute, &
+                     mpp_update_domains, mpp_check_field, mpp_start_update_domains, &
+                     mpp_complete_update_domains, mpp_create_group_update, &
+                     mpp_do_group_update, mpp_start_group_update, &
+                     mpp_complete_group_update, mpp_reset_group_update_field, &
+                     mpp_update_nest_fine, mpp_update_nest_coarse, mpp_get_boundary, &
+                     mpp_update_domains_ad, mpp_get_boundary_ad, mpp_pass_SG_to_UG, &
+                     mpp_pass_UG_to_SG, mpp_define_layout, mpp_define_domains, &
+                     mpp_modify_domain, mpp_define_mosaic, mpp_define_mosaic_pelist, &
+                     mpp_define_null_domain, mpp_mosaic_defined, &
+                     mpp_define_io_domain, mpp_deallocate_domain, &
+                     mpp_compute_extent, mpp_compute_block_extent, &
+                     mpp_define_unstruct_domain, domainUG, mpp_get_UG_io_domain, &
+                     mpp_get_UG_domain_npes, mpp_get_UG_compute_domain, &
+                     mpp_get_UG_domain_tile_id, mpp_get_UG_domain_pelist, &
+                     mpp_get_ug_domain_grid_index, mpp_get_UG_domain_ntiles, &
+                     mpp_get_UG_global_domain, mpp_global_field_ug, &
+                     mpp_get_ug_domain_tile_list, mpp_get_UG_compute_domains, &
+                     mpp_define_null_UG_domain, NULL_DOMAINUG, mpp_get_UG_domains_index, &
+                     mpp_get_UG_SG_domain, mpp_get_UG_domain_tile_pe_inf, &
+                     mpp_define_nest_domains, mpp_get_C2F_index, mpp_get_F2C_index, &
+                     mpp_get_nest_coarse_domain, mpp_get_nest_fine_domain, &
+                     mpp_is_nest_coarse, mpp_is_nest_fine, &
+                     mpp_get_nest_pelist, mpp_get_nest_npes, &
+                     mpp_get_nest_fine_pelist, mpp_get_nest_fine_npes, &
+                     mpp_domain_UG_is_tile_root_pe, mpp_deallocate_domainUG, &
+                     mpp_get_io_domain_UG_layout, NULL_DOMAIN1D, NULL_DOMAIN2D, &
+                     mpp_create_super_grid_domain
+
+  !> platform
+  use platform_mod, only: r8_kind, r4_kind, i8_kind, i4_kind, c8_kind, c4_kind, &
+                          l8_kind, l4_kind, i2_kind, ptr_kind
+
+  !> random_numbers
+  use random_numbers_mod, only: randomNumberStream, initializeRandomNumberStream, &
+                                getRandomNumbers, constructSeed
+
+  !> sat_vapor_pres
+  use sat_vapor_pres_mod, only: lookup_es, lookup_des, sat_vapor_pres_init, &
+                                lookup_es2, lookup_des2, lookup_es2_des2, &
+                                lookup_es3, lookup_des3, lookup_es3_des3, &
+                                lookup_es_des, compute_qs, compute_mrs, &
+                                escomp, descomp
+
+  !> time_interp
+  use time_interp_mod, only: time_interp_init, time_interp, fraction_of_year, &
+                             NONE, YEAR, MONTH, DAY
+  use time_interp_external2_mod, only: init_external_field, time_interp_external, &
+                             time_interp_external_init, time_interp_external_exit, &
+                             get_external_field_size, get_time_axis, &
+                             get_external_field_missing, set_override_region, &
+                             reset_src_data_region, get_external_fileobj, &
+                             NO_REGION, INSIDE_REGION, OUTSIDE_REGION, &
+                             SUCCESS, ERR_FIELD_NOT_FOUND
+
+  !> time_manager
+  use time_manager_mod, only: time_type, operator(+), operator(-), operator(*), &
+                              operator(/), operator(>), operator(>=), operator(==), &
+                              operator(/=), operator(<), operator(<=), operator(//), &
+                              assignment(=), set_time, increment_time, decrement_time, &
+                              get_time, interval_alarm, repeat_alarm, time_type_to_real, &
+                              real_to_time_type, time_list_error, THIRTY_DAY_MONTHS, &
+                              JULIAN, GREGORIAN, NOLEAP, NO_CALENDAR, INVALID_CALENDAR, &
+                              set_calendar_type, get_calendar_type, set_ticks_per_second, &
+                              get_ticks_per_second, set_date, get_date, increment_date, &
+                              decrement_date, days_in_month, leap_year, length_of_year, &
+                              days_in_year, day_of_year, month_name, valid_calendar_types, &
+                              time_manager_init, print_time, print_date, set_date_julian, &
+                              get_date_julian, get_date_no_leap, date_to_string
+  use get_cal_time_mod, only: get_cal_time
+
+  !> topography
+  use gaussian_topog_mod, only: gaussian_topog_init, get_gaussian_topog
+  use topography_mod, only: topography_init, get_topog_mean, get_topog_stdev, &
+                            get_ocean_frac, get_ocean_mask, get_water_frac, &
+                            get_water_mask
+
+  !> tracer_manager
+  use tracer_manager_mod, only: tracer_manager_init, tracer_manager_end, &
+                                check_if_prognostic, get_tracer_indices,  &
+                                get_tracer_index, get_tracer_names, &
+                                get_tracer_name, query_method, &
+                                set_tracer_atts, set_tracer_profile, &
+                                register_tracers, get_number_tracers,  &
+                                adjust_mass, adjust_positive_def, NO_TRACER, MAX_TRACER_FIELDS
+
+  !> tridiagonal
+  use tridiagonal_mod, only: tri_invert, close_tridiagonal
+
+  implicit none
+
+end module fms
diff --git a/mpp/mpp_efp.F90 b/mpp/mpp_efp.F90
index bc86d0610b..7c4cc034ff 100644
--- a/mpp/mpp_efp.F90
+++ b/mpp/mpp_efp.F90
@@ -30,7 +30,7 @@ module mpp_efp_mod
 public :: mpp_reproducing_sum, mpp_efp_list_sum_across_PEs
 public :: mpp_efp_plus, mpp_efp_minus, mpp_efp_to_real, mpp_real_to_efp, mpp_efp_real_diff
 public :: operator(+), operator(-), assignment(=)
-public :: mpp_query_efp_overflow_error, mpp_reset_efp_overlow_error
+public :: mpp_query_efp_overflow_error, mpp_reset_efp_overflow_error
 
 integer, parameter :: NUMBIT = 46  !< number of bits used in the 64-bit signed integer representation.
 integer, parameter :: NUMINT = 6   !< The number of long integers to use to represent
@@ -560,9 +560,9 @@ function mpp_query_efp_overflow_error()
   mpp_query_efp_overflow_error = overflow_error
 end function mpp_query_efp_overflow_error
 
-subroutine mpp_reset_efp_overlow_error()
+subroutine mpp_reset_efp_overflow_error()
   overflow_error = .false.
-end subroutine mpp_reset_efp_overlow_error
+end subroutine mpp_reset_efp_overflow_error
 
 function mpp_efp_plus(EFP1, EFP2)
   type(mpp_efp_type)             :: mpp_efp_plus
diff --git a/supported_interfaces.md b/supported_interfaces.md
new file mode 100644
index 0000000000..fdb71c3f3b
--- /dev/null
+++ b/supported_interfaces.md
@@ -0,0 +1,693 @@
+# Supported Public Interfaces for FMS
+
+List of supported public interfaces and associated types meant for external use through the 'fms' module.
+Additional information for this module and others can be found in the Doxygen generated documentation. 
+
+### affinity
+##### Interfaces
+- fms_affinity_init
+- fms_affinity_get
+- fms_affinity_set
+
+### amip_interp
+##### Interfaces
+- amip_interp_init
+- get_amip_sst
+- get_amip_ice
+- amip_interp_new
+- amip_interp_del
+- ASSIGNMENT(=) of amip_interp_types
+##### Types
+- amip_interp_type
+
+### astronomy
+##### Interfaces
+- astronomy_init
+- get_period
+- set_period
+- set_orbital_parameters
+- get_orbital_parameters
+- set_ref_date_of_ae
+- get_red_date_of_ae
+- diurnal_solar
+- daily_mean_solar
+- annual_mean_solar
+- astronomy_end
+- universal_time
+- orbital_time
+
+### axis_utils2
+##### Interfaces
+- get_axis_cart
+- get_axis_modulo
+- lon_in_range
+- tranlon
+- frac_index
+- nearest_index
+- interp_1d
+- get_axis_modulo_times
+- axis_edges
+
+### block_control
+##### Interfaces
+- define_blocks
+- define_blocks_packed
+##### Types
+- block_control_type
+
+### column_diagonostics
+##### Interfaces
+- column_diagnostics_init
+- initialize_diagnostic_columns
+- column_diagnostics_header
+- close_column_diagnostics_units
+
+### coupler_types
+##### Interfaces
+- coupler_types_init
+- coupler_type_copy
+- coupler_type_spawn
+- coupler_type_set_diags
+- coupler_type_write_chksums
+- coupler_type_send_data
+- coupler_type_data_override
+- coupler_type_register_restarts
+- coupler_type_restore_stat
+- coupler_type_increment_data
+- coupler_type_rescale_data
+- coupler_type_copy_data
+- coupler_type_redistribute_data
+- coupler_type_destructor
+- coupler_type_initialized
+- coupler_type_extract_data
+- coupler_type_set_data
+##### Types
+- coupler_3d_values_type
+- coupler_3d_field_type
+- coupler_3d_bc_type
+- coupler_2d_values_type
+- coupler_2d_field_type
+- coupler_2d_bc_type
+- coupler_1d_values_type
+- coupler_1d_field_type
+- coupler_1d_bc_type
+
+### ensemble_manager
+##### Interfaces
+- ensemble_manager_init
+- get_ensemble_id
+- get_ensemble_size
+- get_ensemble_pelist
+- ensemble_pelist_setup
+- get_ensemble_filter_pelist
+
+### atmos_ocean_fluxes
+##### Interfaces
+- atmos_ocean_fluxes_init
+- atmos_ocean_type_fluxes_init
+- aof_set_coupler_flux
+
+### data_override
+##### Interfaces
+- data_override_init
+- data_override
+- data_override_unset_domains
+- data_override_UG
+
+### diag_integral
+##### Interfaces
+- diag_integral_init
+- diag_integral_field_init
+- sum_diag_integral_field
+- diag_integral_output
+- diag_integral_end
+
+### diag_manager
+##### Interfaces
+- diag_manager_init
+- send_data
+- send_tile_averaged_data
+- diag_manager_end
+- register_diag_field
+- register_static_field
+- diag_axis_init
+- get_base_time
+- get_base_date
+- need_data
+- get_date_dif
+- get_diag_global_att
+- set_diag_global_att
+- diag_field_add_attribute
+- diag_field_add_cell_measures
+- get_diag_field_id
+- diag_axis_add_attribute
+- diag_grid_init
+- diag_grid_end
+- diag_manager_set_time_end
+- diag_send_complete
+- diag_send_complete_instant
+
+### xgrid
+##### Interfaces
+- setup_xmap
+- set_frac_area
+- put_to_xgrid
+- get_from_xgrid
+- xgrid_count
+- some
+- conservation_check
+- xgrid_init
+- get_ocean_model_area_elements
+- get_xmap_grid_area
+- put_to_xgrid_ug
+- get_from_xgrid_ug
+- set_frac_area_ug
+##### Types
+- xmap_type
+- grid_box_type
+
+### stock_constants
+##### Interfaces
+- stocks_report
+- stocks_report_init
+- stocks_set_init_time
+
+### field_manager
+##### Interfaces
+- field_manager_init
+- field_manager_end
+- find_field_index
+- get_field_info
+- get_field_method
+- get_field_methods
+- parse
+- fm_change_list
+- fm_change_root
+- fm_dump_list
+- fm_exists
+- fm_get_index
+- fm_get_current_list
+- fm_get_length
+- fm_get_type
+- fm_get_value
+- fm_intersection
+- fm_init_loop
+- fm_loop_over_list
+- fm_new_list
+- fm_new_value
+- fm_reset_loop
+- fm_return_root
+- fm_modify_name
+- fm_query_method
+- fm_find_methods
+- fm_copy_list
+- fm_set_verbosity
+##### Types
+- fm_array_list_def
+- method_type
+- method_type_short
+- method_type_very_short
+- fm_list_iter_type
+
+### fm_util
+##### Interfaces
+- fm_util_start_namelist
+- fm_util_end_namelist
+- fm_util_check_for_bad_fields
+- fm_util_set_caller
+- fm_util_reset_caller
+- fm_util_set_no_overwrite
+- fm_util_reset_no_overwrite
+- fm_util_set_good_name_list
+- fm_util_reset_good_name_list
+- fm_util_get_length
+- fm_util_get_integer
+- fm_util_get_logical
+- fm_util_get_string
+- fm_util_get_integer_array
+- fm_util_get_logical_array
+- fm_util_get_real_array
+- fm_util_get_string_array
+- fm_util_set_value
+- fm_util_set_value_integer_array
+- fm_util_set_value_logical_array
+- fm_util_set_value_real_array
+- fm_util_set_value_string_array
+- fm_util_set_value_integer
+- fm_util_set_value_logical
+- fm_util_set_value_real
+- fm_util_set_value_string
+- fm_util_get_index_list
+- fm_util_get_index_string
+
+### fms(_mod)
+##### Interfaces
+- fms_init
+- fms_end
+- error_mesg
+- fms_error_handler
+- check_nml_error
+- monotonic_array
+- string_array_index
+
+### fms2_io
+##### Interfaces
+- fms2_io_init
+- open_file
+- open_virtual_file
+- close_file
+- register_axis
+- register_field
+- register_restart_field
+- write_data
+- read_data
+- write_restart
+- write_new_restart
+- read_restart
+- read_new_restart
+- global_att_exists
+- variable_att_exists
+- register_global_attribute
+- register_variable_attribute
+- get_global_attribute
+- get_variable_attribute
+- get_num_dimensions
+- get_dimension_names
+- dimension_exists
+- is_dimension_unlimited
+- get_dimension_size
+- get_num_variables
+- get_variable_names
+- variable_exists
+- get_variable_num_dimensions
+- get_variable_dimension_names
+- get_variable_size
+- get_compute_domain_dimension_indices
+- get_global_io_domain_indices
+- get_valid
+- is_valid
+- get_unlimited_dimension_name
+- get_variable_unlimited_dimension_index
+- file_exists
+- compressed_start_and_count
+- get_variable_sense
+- get_variable_missing
+- get_variable_units
+- get_time_calendar
+- open_check
+- is_registered_to_restart
+- check_if_open
+- set_fileobj_time_name
+- is_dimension_registered
+- write_restart_bc
+- read_restart_bc
+- get_filename_appendix
+- set_filename_appendix
+- get_instance_filename
+- nullify_filename_appendix
+- ascii_read
+- get_mosaic_tile_file
+- parse_mask_table
+##### Types
+- FmsNetcdfDomainFile_t
+- FmsNetcdfDomainFile_t
+- FmsNetcdfUnstructuredDomainFile_t
+- Valid_t
+
+### horiz_interp
+##### Interfaces
+- horiz_interp
+- horiz_interp_new
+- horiz_interp_del
+- horiz_interp_init
+- horiz_interp_end
+- ASSIGNMENT(=) of horiz_interp_types
+##### Types
+- horiz_interp_type
+
+### interpolator
+##### Interfaces
+- interpolator_init
+- interpolator
+- interpolate_type_eq
+- obtain_interpolator_time_slices
+- unset_interpolator_time_flag
+- interpolator_end
+- init_clim_diag
+- query_interpolator
+- interpolator_read_data
+##### Types
+- interpolate_type
+
+### memutils
+##### Interfaces
+- memutils_init
+- print_memuse_stats
+
+### monin_obukhov
+##### Interfaces
+- monin_obukhov_init
+- monin_obukhov_end
+- mo_drag
+- mo_profile
+- mo_diff
+- stable_mix
+
+### mosaic2
+##### Interfaces
+- get_mosaic_ntiles
+- get_mosaic_ncontacts
+- get_mosaic_grid_sizes
+- get_mosaic_contact
+- get_mosaic_xgrid_size
+- get_mosaic_xgrid
+- calc_mosaic_grid_area
+- calc_mosaic_grid_great_circle_area
+- is_inside_polygon
+- mosaic2_get_mosaic_tile_grid
+
+### mpp
+##### Interfaces
+- stdin
+- stdout
+- stderr
+- stdlog
+- lowercase
+- uppercase
+- mpp_error
+- mpp_error_state
+- mpp_set_warn_level
+- mpp_sync
+- mpp_sync_self
+- mpp_set_stack_size
+- mpp_pe
+- mpp_npes
+- mpp_root_pe
+- mpp_set_root_pe
+- mpp_declare_pelist
+- mpp_get_current_pelist
+- mpp_set_current_pelist
+- mpp_get_current_pelist_name
+- mpp_clock_id
+- mpp_clock_set_grain
+- mpp_record_timing_data
+- get_unit
+- read_ascii_file
+- read_input_nml
+- mpp_clock_begin
+- mpp_clock_end
+- get_ascii_file_num_lines
+- mpp_record_time_start
+- mpp_record_time_end
+- mpp_chksum
+- mpp_max
+- mpp_min
+- mpp_sum
+- mpp_transmit
+- mpp_send
+- mpp_recv
+- mpp_sum_ad
+- mpp_broadcast
+- mpp_init
+- mpp_exit
+- mpp_gather
+- mpp_scatter
+- mpp_alltoall
+- mpp_type_create
+- mpp_type_free
+##### Types
+- mpp_type
+
+### mpp_utilities
+##### Interfaces
+- mpp_array_global_min_max
+
+### mpp_memutils
+##### Interfaces
+- mpp_print_memuse_stats
+- mpp_mem_dump
+- mpp_memuse_begin
+- mpp_memuse_end
+
+### mpp_efp
+##### Interfaces
+- mpp_reproducing_sum
+- mpp_efp_list_sum_across_PEs
+- mpp_efp_plus
+- mpp_efp_minus
+- mpp_efp_to_real
+- mpp_real_to_efp
+- mpp_efp_real_diff
+- mpp_query_efp_overflow_error
+- mpp_reset_efp_overflow
+- OPERATOR(+), OPERATOR(-), and ASSIGNMENT(=) for mpp_efp_types
+##### Types
+- mpp_efp_type
+
+### mpp_domains
+##### Interfaces
+- mpp_domains_set_stack_size
+- mpp_get_compute_domain
+- mpp_get_compute_domains
+- mpp_get_data_domain
+- mpp_get_global_domain
+- mpp_get_domain_components
+- mpp_get_layout
+- mpp_get_pelist
+- mpp_domain_is_symmetry
+- mpp_domain_is_initialized
+- mpp_get_neighbor_pe
+- mpp_nullify_domain_list
+- mpp_set_compute_domain
+- mpp_set_data_domain
+- mpp_set_global_domain
+- mpp_get_memory_domain
+- mpp_get_domain_shift
+- mpp_domain_is_tile_root_pe
+- mpp_get_tile_id
+- mpp_get_domain_extents
+- mpp_get_current_ntile
+- mpp_get_ntile_count
+- mpp_get_tile_list
+- mpp_get_tile_npes
+- mpp_get_domain_root_pe
+- mpp_get_tile_pelist
+- mpp_get_tile_compute_domains
+- mpp_get_num_overlap
+- mpp_get_overlap
+- mpp_get_io_domain
+- mpp_get_domain_pe
+- mpp_get_domain_tile_root_pe
+- mpp_get_domain_name
+- mpp_get_io_domain_layout
+- mpp_copy_domain
+- mpp_set_domain_symmetry
+- mpp_get_update_pelist
+- mpp_get_update_size
+- mpp_get_domain_npes
+- mpp_get_domain_pelist
+- mpp_clear_group_update
+- mpp_group_update_initialized
+- mpp_group_update_is_set
+- mpp_get_global_domains
+- mpp_global_field
+- mpp_global_max
+- mpp_global_min
+- mpp_global_sum
+- mpp_global_sum_tl
+- mpp_global_sum_ad
+- mpp_broadcast_domain
+- mpp_domains_init
+- mpp_domains_exit
+- mpp_redistribute
+- mpp_update_domains
+- mpp_check_field
+- mpp_start_update_domains
+- mpp_complete_update_domains
+- mpp_create_group_update
+- mpp_do_group_update
+- mpp_start_group_update
+- mpp_complete_group_update
+- mpp_reset_group_update_field
+- mpp_update_nest_fine
+- mpp_update_nest_coarse
+- mpp_get_boundary
+- mpp_update_domains_ad
+- mpp_get_boundary_ad
+- mpp_pass_SG_to_UG
+- mpp_pass_UG_to_SG
+- mpp_define_layout
+- mpp_define_domains
+- mpp_modify_domain
+- mpp_define_mosaic
+- mpp_define_mosaic_pelist
+- mpp_define_null_domain
+- mpp_mosaic_defined
+- mpp_define_io_domain
+- mpp_deallocate_domain
+- mpp_compute_extent
+- mpp_compute_block_extent
+- mpp_define_unstruct_domain
+- mpp_get_UG_io_domain
+- mpp_get_UG_domain_npes
+- mpp_get_UG_compute_domain
+- mpp_get_UG_domain_tile_id
+- mpp_get_UG_domain_pelist
+- mpp_get_ug_domain_grid_index
+- mpp_get_UG_domain_ntiles
+- mpp_get_UG_global_domain
+- mpp_global_field_ug
+- mpp_get_ug_domain_tile_list
+- mpp_get_UG_compute_domains
+- mpp_define_null_UG_domain
+- mpp_get_UG_domains_index
+- mpp_get_UG_SG_domain
+- mpp_get_UG_domain_tile_pe_inf
+- mpp_define_nest_domains
+- mpp_get_C2F_index
+- mpp_get_F2C_index
+- mpp_get_nest_coarse_domain
+- mpp_get_nest_fine_domain
+- mpp_is_nest_coarse
+- mpp_is_nest_fine
+- mpp_get_nest_pelist
+- mpp_get_nest_npes
+- mpp_get_nest_fine_pelist
+- mpp_get_nest_fine_npes
+- mpp_domain_UG_is_tile_root_pe
+- mpp_deallocate_domainUG
+- mpp_get_io_domain_UG_layout
+- OPERATOR(.EQ.) for domain2D types
+- OPERATOR(.NE.) for domain2D types
+- mpp_create_super_grid_domain
+##### Types
+- domain_axis_spec
+- domain1D
+- domain2D
+- DomainCommunicator2D
+- nest_domain_type
+- mpp_group_update_type
+- domainUG
+
+### random_numbers
+##### Interfaces
+- initializeRandomNumberStream
+- getRandomNumbers
+- constructSeed
+##### Types
+- randomNumberStream
+
+### sat_vapor_pres
+##### Interfaces
+- lookup_es
+- lookup_des
+- sat_vapor_pres_init
+- lookup_es2
+- lookup_des2
+- lookup_es2_des2
+- lookup_es3
+- lookup_des3
+- lookup_es3_des3
+- lookup_es_des
+- compute_qs
+- compute_mrs
+
+### time_interp
+##### Interfaces
+- time_interp_init
+- time_interp
+- fraction_of_year
+
+### time_interp_external2
+##### Interfaces
+- init_external_field
+- time_interp_external
+- time_interp_external_init
+- time_interp_external_exit
+- get_External_field_size
+- get_time_axis
+- get_external_field_missing
+- set_override_region
+- reset_src_data_region
+- get_external_fileobj
+- reset_src_data_region
+- get_external_fileobj
+
+### time_manager
+##### Interfaces
+- set_time
+- increment_time
+- decrement_time
+- get_time
+- interval_alarm
+- repeat_alarm
+- time_type_to_real
+- real_to_time_type
+- time_list_error
+- set_calendar_type
+- get_calendar_type
+- set_ticks_per_second
+- get_ticks-per_second
+- set_date
+- get_date
+- increment_date
+- decrement_date
+- days_in_month
+- leap_year
+- length_of_year
+- days_in_year
+- day_of_year
+- month-name
+- valid_calender_types
+- time_manager_init
+- print_time
+- print_date
+- set_date_julian
+- get_date_julian
+- get_date_no_leap
+- date_to_string
+- all artithmetic operators for time_type
+- all logical operators for time_type
+##### Type
+- time_type
+
+### get_cal_time
+##### Interfaces
+- get_cal_time
+
+### gaussian_topog
+##### Interfaces
+- guassian_topog_init
+- get_gaussian_topog
+
+### topography
+##### Interfaces
+- topography_init
+- get_topog_mean
+- get_topog_stdev
+- get_ocean_frac
+- get_ocean_mask
+- get_water_frac
+- get_water_mask
+
+### tracer_manager
+##### Interfaces
+- tracer_manager_init
+- tracer_manager_end
+- check_if_prognostic
+- get_tracer_indices
+- get_tracer_index
+- get_tracer_names
+- get_tracer_name
+- query_method
+- set_tracer_atts
+- set_tracer_profile
+- register_tracers
+- get_number_tracers
+- ajust_mass
+- ajust_positive_def
+
+### tridiagonal
+##### Interfaces
+- tri_invert
+- close_tridiagonal