diff --git a/parm/marine/marine_bmat_copy_bkgerr.yaml.j2 b/parm/marine/marine_bmat_copy_bkgerr.yaml.j2
new file mode 100644
index 000000000..7f8b79fb0
--- /dev/null
+++ b/parm/marine/marine_bmat_copy_bkgerr.yaml.j2
@@ -0,0 +1,8 @@
+copy_req:
+# diag B
+- ['{{ DATAstaticb }}/ocn.bkgerr_parametric_stddev.incr.{{ MARINE_WINDOW_END_ISO }}.nc', '{{ DATAstaticb }}/ocn.bkgerr_parametric_stddev.nc']
+- ['{{ DATAstaticb }}/ice.bkgerr_parametric_stddev.incr.{{ MARINE_WINDOW_END_ISO }}.nc', '{{ DATAstaticb }}/ice.bkgerr_parametric_stddev.nc']
+{% if DOHYBVAR_OCN == "YES" or NMEM_ENS >= 2 %}
+- ['{{ DATAstaticb }}/ocn.bkgerr_ens_stddev.incr.{{ MARINE_WINDOW_BEGIN_ISO }}.nc','{{ DATAstaticb }}/ocn.bkgerr_ens_stddev.nc']
+- ['{{ DATAstaticb }}/ice.bkgerr_ens_stddev.incr.{{ MARINE_WINDOW_BEGIN_ISO }}.nc','{{ DATAstaticb }}/ice.bkgerr_ens_stddev.nc']
+{% endif %}