diff --git a/physics/radlw_main.F90 b/physics/radlw_main.F90
index 5ed3397d6..f1811ed51 100644
--- a/physics/radlw_main.F90
+++ b/physics/radlw_main.F90
@@ -280,7 +280,8 @@ module rrtmg_lw
 !
       use physparam,        only : ilwrate, ilwrgas, ilwcliq, ilwcice,  &
      &                             isubclw, icldflg, iovr,  ivflip
-
+      use physcons,         only : con_g, con_cp, con_avgd, con_amd,    &
+     &                             con_amw, con_amo3
       use mersenne_twister, only : random_setseed, random_number,       &
      &                             random_stat
 !mz
@@ -319,8 +320,8 @@ module rrtmg_lw
       real (kind=kind_phys), parameter :: f_one   = 1.0
 
 !  ...  atomic weights for conversion from mass to volume mixing ratios
-      ! real (kind=kind_phys), parameter :: amdw    = con_amd/con_amw
-      ! real (kind=kind_phys), parameter :: amdo3   = con_amd/con_amo3
+      real (kind=kind_phys), parameter :: amdw    = con_amd/con_amw
+      real (kind=kind_phys), parameter :: amdo3   = con_amd/con_amo3
 
 !  ...  band indices
       integer, dimension(nbands) :: nspa, nspb
@@ -384,9 +385,7 @@ module rrtmg_lw
 !  ---  public accessable subprograms
 
       public rrtmg_lw_init, rrtmg_lw_run, rrtmg_lw_finalize, rlwinit
-      
-      real(kind=kind_phys), public :: con_g, con_cp,                       &
-     &       con_avgd, con_amd, con_amw, con_amo3
+
 
 ! ================
       contains
@@ -424,8 +423,7 @@ end subroutine rrtmg_lw_init
 !> \section gen_lwrad RRTMG Longwave Radiation Scheme General Algorithm
 !> @{
       subroutine rrtmg_lw_run                                           &
-     &     ( con_g,con_cp,con_avgd,con_amd,con_amw,con_amo3,            &   !  ---  inputs
-     &	     plyr,plvl,tlyr,tlvl,qlyr,olyr,gasvmr_co2, gasvmr_n2o,      &   
+     &     ( plyr,plvl,tlyr,tlvl,qlyr,olyr,gasvmr_co2, gasvmr_n2o,      &   !  ---  inputs
      &       gasvmr_ch4, gasvmr_o2, gasvmr_co, gasvmr_cfc11,            &
      &       gasvmr_cfc12, gasvmr_cfc22, gasvmr_ccl4,                   &
      &       icseed,aeraod,aerssa,sfemis,sfgtmp,                        &
@@ -615,12 +613,6 @@ subroutine rrtmg_lw_run                                           &
 
       logical,  intent(in) :: lprnt
 
-      real(kind=kind_phys),intent(in) :: con_g, con_cp,                &
-     &       con_avgd, con_amd, con_amw, con_amo3
-      
-
-      real (kind=kind_phys) :: amdw,  amdo3
-
       real (kind=kind_phys), dimension(npts,nlp1), intent(in) :: plvl,  &
      &       tlvl
       real (kind=kind_phys), dimension(npts,nlay), intent(in) :: plyr,  &
@@ -775,9 +767,7 @@ subroutine rrtmg_lw_run                                           &
       ! Initialize CCPP error handling variables
       errmsg = ''
       errflg = 0
-      
-      amdw    = con_amd/con_amw
-      amdo3   = con_amd/con_amo3
+
 !mz*
 ! For passing in cloud physical properties; cloud optics parameterized
 ! in RRTMG:
@@ -8978,4 +8968,4 @@ end subroutine cldprmc
 
 !........................................!$
       end module rrtmg_lw                !$
-!========================================!$
+!========================================!$
\ No newline at end of file
diff --git a/physics/radlw_main.meta b/physics/radlw_main.meta
index 5770a8815..9b2eae7b6 100644
--- a/physics/radlw_main.meta
+++ b/physics/radlw_main.meta
@@ -7,60 +7,6 @@
 [ccpp-arg-table]
   name = rrtmg_lw_run
   type = scheme
-[con_g]
-  standard_name = gravitational_acceleration
-  long_name = gravitational acceleration
-  units = m s-2
-  dimensions = ()
-  type = real
-  kind = kind_phys
-  intent = in
-  optional = F
-[con_cp]
-  standard_name = specific_heat_of_dry_air_at_constant_pressure
-  long_name = specific heat of dry air at constant pressure
-  units = J kg-1 K-1
-  dimensions = ()
-  type = real
-  kind = kind_phys
-  intent = in
-  optional = F
-[con_avgd]
-  standard_name = avogadro_constant
-  long_name = avogadro constant
-  units = mol-1
-  dimensions = ()
-  type = real
-  kind = kind_phys
-  intent = in
-  optional = F
-[con_amd]
-  standard_name = molecular_weight_of_dry_air
-  long_name = molecular weight of dry air
-  units = g mol-1
-  dimensions = ()
-  type = real
-  kind = kind_phys
-  intent = in
-  optional = F
-[con_amw]
-  standard_name = molecular_weight_of_water_vapor
-  long_name = molecular weight of water vapor
-  units = g mol-1
-  dimensions = ()
-  type = real
-  kind = kind_phys
-  intent = in
-  optional = F
-[con_amo3]
-  standard_name = molecular_weight_of_o3
-  long_name = molecular weight of o3
-  units = g mol-1
-  dimensions = ()
-  type = real
-  kind = kind_phys
-  intent = in
-  optional = F
 [plyr]
   standard_name = air_pressure_at_layer_for_radiation_in_hPa
   long_name = air pressure layer
@@ -456,4 +402,4 @@
   dimensions = ()
   type = integer
   intent = out
-  optional = F
+  optional = F
\ No newline at end of file