diff --git a/src/modules/swiftest_classes.f90 b/src/modules/swiftest_classes.f90
index 00802f3fa..47d66ee51 100644
--- a/src/modules/swiftest_classes.f90
+++ b/src/modules/swiftest_classes.f90
@@ -165,7 +165,6 @@ module swiftest_classes
       procedure :: setup       => setup_body               !! A constructor that sets the number of bodies and allocates all allocatable arrays
       procedure :: accel_user  => user_kick_getacch_body   !! Add user-supplied heliocentric accelerations to planets
       procedure :: append      => util_append_body         !! Appends elements from one structure to another
-      procedure :: copy_into   => util_copy_into_body      !! Copies elements from one Swiftest body object to another. 
       procedure :: fill        => util_fill_body           !! "Fills" bodies from one object into another depending on the results of a mask (uses the UNPACK intrinsic)
       procedure :: resize      => util_resize_body         !! Checks the current size of a Swiftest body against the requested size and resizes it if it is too small.
       procedure :: set_ir3     => util_set_ir3h            !! Sets the inverse heliocentric radius term (1/rh**3)
@@ -770,14 +769,6 @@ module subroutine util_coord_h2b_tp(self, cb)
          class(swiftest_cb), intent(in)    :: cb   !! Swiftest central body object
       end subroutine util_coord_h2b_tp
 
-      module subroutine util_copy_into_body(self, source, param, lsource_mask)
-         implicit none
-         class(swiftest_body),            intent(inout) :: self   !! Swiftest body object
-         class(swiftest_body),            intent(in)    :: source !! Source object to append
-         class(swiftest_parameters),      intent(in)    :: param  !! Current run configuration parameters
-         logical, dimension(:), optional, intent(in)    :: lsource_mask  !! Logical mask indicating which elements to append to
-      end subroutine util_copy_into_body
-
       module subroutine util_exit(code)
          implicit none
          integer(I4B), intent(in) :: code !! Failure exit code
diff --git a/src/util/util_copy.f90 b/src/util/util_copy.f90
deleted file mode 100644
index b21f061f4..000000000
--- a/src/util/util_copy.f90
+++ /dev/null
@@ -1,35 +0,0 @@
-submodule (swiftest_classes) s_util_copy
-   use swiftest
-contains
-
-   module subroutine util_copy_into_body(self, source, param, lsource_mask)
-      !! author: David A. Minton
-      !!
-      !! Copies elements from one Swiftest body object to another. 
-      !! This method will automatically resize the destination body if it is too small
-      implicit none
-      ! Arguments
-      class(swiftest_body),            intent(inout) :: self   !! Swiftest body object
-      class(swiftest_body),            intent(in)    :: source !! Source object to append
-      class(swiftest_parameters),      intent(in)    :: param  !! Current run configuration parameters
-      logical, dimension(:), optional, intent(in)    :: lsource_mask  !! Logical mask indicating which elements to append to
-      ! Internals
-      integer(I4B)  :: i,nnew
-      logical, dimension(:), allocatable :: lfill_list
-
-      if (present(lsource_mask)) then
-         nnew = count(lsource_mask)
-      else
-         nnew = size(source%status)
-      end if
-      allocate(lfill_list(size(self%status)))
-      lfill_list = .false.
-      lfill_list(1:nnew) = .true.
-      associate(nold => self%nbody)
-         if (nnew > size(self%status)) call self%resize(nnew)
-         call self%fill(source, lfill_list)
-      end associate
-      return
-   end subroutine util_copy_into_body
-
-end submodule s_util_copy
\ No newline at end of file