diff --git a/physics/GFS_rrtmgp_gas_optics.F90 b/physics/GFS_rrtmgp_gas_optics.F90
index 3ff397268..1054c0908 100644
--- a/physics/GFS_rrtmgp_gas_optics.F90
+++ b/physics/GFS_rrtmgp_gas_optics.F90
@@ -53,7 +53,7 @@ subroutine GFS_rrtmgp_gas_optics_init(Model, Radtend, errmsg, errflg)
        gasIndices(Model%ngases,2)=len(trim(Model%active_gases))
        ! Now extract the gas names
        do ij=1,Model%ngases
-          Radtend%active_gases(ij,1) = Model%active_gases(gasIndices(ij,1):gasIndices(ij,2))
+          Radtend%active_gases(ij) = Model%active_gases(gasIndices(ij,1):gasIndices(ij,2))
        enddo
     endif
   end subroutine GFS_rrtmgp_gas_optics_init
diff --git a/physics/GFS_rrtmgp_pre.F90 b/physics/GFS_rrtmgp_pre.F90
index 6a93eec36..a501b196b 100644
--- a/physics/GFS_rrtmgp_pre.F90
+++ b/physics/GFS_rrtmgp_pre.F90
@@ -71,7 +71,7 @@ module GFS_rrtmgp_pre
   ! #########################################################################################
   subroutine GFS_rrtmgp_pre_init(Model, Radtend, errmsg, errflg)
     ! Inputs
-    type(GFS_control_type), intent(in) :: &
+    type(GFS_control_type), intent(inout) :: &
          Model      ! DDT containing model control parameters
    type(GFS_radtend_type), intent(inout) :: &
         Radtend     ! Fortran DDT containing FV3-GFS radiation tendencies 
@@ -108,7 +108,7 @@ subroutine GFS_rrtmgp_pre_init(Model, Radtend, errmsg, errflg)
        gasIndices(Model%ngases,2)=len(trim(Model%active_gases))
        ! Now extract the gas names
        do ij=1,Model%ngases
-          Radtend%active_gases(ij,1) = Model%active_gases(gasIndices(ij,1):gasIndices(ij,2))
+          Model%active_gases_array(ij) = Model%active_gases(gasIndices(ij,1):gasIndices(ij,2))
        enddo
     endif
   end subroutine GFS_rrtmgp_pre_init
diff --git a/physics/GFS_rrtmgp_pre.meta b/physics/GFS_rrtmgp_pre.meta
index 1379ea1aa..e70d7400c 100644
--- a/physics/GFS_rrtmgp_pre.meta
+++ b/physics/GFS_rrtmgp_pre.meta
@@ -7,7 +7,7 @@
   units = DDT
   dimensions = ()
   type = GFS_control_type
-  intent = in
+  intent = inout
   optional = F
 [Radtend]
   standard_name = GFS_radtend_type_instance
diff --git a/physics/rrtmgp_lw_gas_optics.F90 b/physics/rrtmgp_lw_gas_optics.F90
index 773bdeda4..3ae94dea1 100644
--- a/physics/rrtmgp_lw_gas_optics.F90
+++ b/physics/rrtmgp_lw_gas_optics.F90
@@ -411,7 +411,7 @@ subroutine rrtmgp_lw_gas_optics_init(Model, Radtend, mpicomm, mpirank, mpiroot,
 
     ! Initialize gas concentrations and gas optics class with data
     do iGas=1,Model%nGases
-       call check_error_msg('lw_gas_optics_init',gas_concentrations%set_vmr(Radtend%active_gases(iGas,1), 0._kind_phys))
+       call check_error_msg('lw_gas_optics_init',gas_concentrations%set_vmr(Model%active_gases_array(iGas), 0._kind_phys))
     enddo    
     call check_error_msg('lw_gas_optics_init',lw_gas_props%load(gas_concentrations, gas_names, &
          key_species, band2gpt, band_lims, press_ref, press_ref_trop, temp_ref,  temp_ref_p,   &
diff --git a/physics/rrtmgp_sw_clrallsky_driver.F90 b/physics/rrtmgp_sw_clrallsky_driver.F90
index 249975783..df45c1a6b 100644
--- a/physics/rrtmgp_sw_clrallsky_driver.F90
+++ b/physics/rrtmgp_sw_clrallsky_driver.F90
@@ -133,8 +133,8 @@ subroutine rrtmgp_sw_clrallsky_driver_run(Model, Radtend, ncol, sw_gas_props, p_
       
        ! Similarly, subset the gas concentrations.
        do iGas=1,Model%nGases
-          call check_error_msg('rrtmgp_sw_clrallsky_driver_run',gas_concentrations%get_vmr(trim(Radtend%active_gases(iGas,1)),vmrTemp))
-          call check_error_msg('rrtmgp_sw_clrallsky_driver_run',gas_concentrations_daylit%set_vmr(trim(Radtend%active_gases(iGas,1)),vmrTemp(idxday,:)))
+          call check_error_msg('rrtmgp_sw_clrallsky_driver_run',gas_concentrations%get_vmr(trim(Model%active_gases_array(iGas)),vmrTemp))
+          call check_error_msg('rrtmgp_sw_clrallsky_driver_run',gas_concentrations_daylit%set_vmr(trim(Model%active_gases_array(iGas)),vmrTemp(idxday,:)))
        enddo
 
        ! Initialize RRTMGP DDT containing 2D(3D) fluxes
diff --git a/physics/rrtmgp_sw_gas_optics.F90 b/physics/rrtmgp_sw_gas_optics.F90
index 8e73d42b1..049ab03d4 100644
--- a/physics/rrtmgp_sw_gas_optics.F90
+++ b/physics/rrtmgp_sw_gas_optics.F90
@@ -408,7 +408,7 @@ subroutine rrtmgp_sw_gas_optics_init(Model, Radtend, mpicomm, mpirank, mpiroot,
 
     ! Initialize gas concentrations and gas optics class with data
     do iGas=1,Model%nGases
-       call check_error_msg('sw_gas_optics_init',gas_concentrations%set_vmr(Radtend%active_gases(iGas,1), 0._kind_phys))
+       call check_error_msg('sw_gas_optics_init',gas_concentrations%set_vmr(Model%active_gases_array(iGas), 0._kind_phys))
     enddo
     call check_error_msg('sw_gas_optics_init',sw_gas_props%load(gas_concentrations, gas_names_sw,   &
          key_species_sw, band2gpt_sw, band_lims_sw, press_ref_sw, press_ref_trop_sw, temp_ref_sw,   &
diff --git a/physics/rrtmgp_sw_rte.F90 b/physics/rrtmgp_sw_rte.F90
index f7d8f8fc9..56d846845 100644
--- a/physics/rrtmgp_sw_rte.F90
+++ b/physics/rrtmgp_sw_rte.F90
@@ -154,8 +154,8 @@ subroutine rrtmgp_sw_rte_run(Model, Radtend, Statein, ncol, sw_gas_props, p_lay,
       
        ! Similarly, subset the gas concentrations.
        do iGas=1,Model%nGases
-          call check_error_msg('rrtmgp_sw_rte_run',gas_concentrations%get_vmr(trim(Radtend%active_gases(iGas,1)),vmrTemp))
-          call check_error_msg('rrtmgp_sw_rte_run',gas_concentrations_daylit%set_vmr(trim(Radtend%active_gases(iGas,1)),vmrTemp(idxday,:)))
+          call check_error_msg('rrtmgp_sw_rte_run',gas_concentrations%get_vmr(trim(Model%active_gases_array(iGas)),vmrTemp))
+          call check_error_msg('rrtmgp_sw_rte_run',gas_concentrations_daylit%set_vmr(trim(Model%active_gases_array(iGas)),vmrTemp(idxday,:)))
        enddo
 
        ! Initialize RRTMGP DDT containing 2D(3D) fluxes